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	<dc:title xml:lang="en-US">Analisa Perhitungan Waktu dan Biaya Produksi pada Proses Drilling</dc:title>
	<dc:creator>Barat, Aswinur</dc:creator>
	<dc:description xml:lang="en-US">Abstrack
Perhitungan waktu pemesinan dan biaya produksi merupakan salah satu faktor yang perlu dianalisa dalam membuat suatu produk. Penentuan waktu pemesinan adalah dengan mengetahui jenis pengerjaan yang dilakukan pada setiap komponen. Tingkat kecepatan keausan suatu pahat merupakan salah satu faktor yang mempengaruhi waktu pemesinan. Karena apabila pahat cepat mengalami keausan maka pahat akan sering diganti atau diasah sehingga ongkos pemakaian pahat akan semakin tinggi, dan pada suatu kondisi tertentu ongkos produksi tidak lagi mengecil, melainkan akan semakin membesar. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh proses drilling terhadap waktu pemesinan dan biaya produksi dengan cara menvariasikan beban pada lengan ayun mesin gurdi. Dari hasil analisa yang dilakukan maka dapat dinyatakan bahwa beban yang diberikan pada lengan ayun sangat mempengaruhi waktu pemesinan dan biaya produksinya. Pada pahat 1 waktu pemesinan sebesar 217,67 menit dengan biaya produksi Rp. 283.900,-, pada pahat 2 waktu pemesinan sebesar 179,74 menit dengan biaya produksi Rp. 270.900,-,. Sedangkan pada pahat 3 waktu pemesinan sebesar 143,6 menit dengan biaya produksi Rp. 280.700,-</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/491</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.491</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 01-06</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 01-06</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
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				<identifier>oai:ejurnal.undana.ac.id:article/492</identifier>
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	<dc:title xml:lang="en-US">Analisa Beban Kalor pada Ruang Bagian Kepegawaian Rektorat Universitas Nusa Cendana</dc:title>
	<dc:creator>Oematan, Abraham</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:description xml:lang="en-US">Abstrak
Perhitungan beban kalor perlu dilaksanakan terlebih dahulu sebelum dilakukan perencanaan sistem pengkondisian udara di suatu ruangan. Hal ini diperlukan karena besarnya beban kalor sangat berpengaruh terhadap kapasitas pendinginan yang dibutuhkan, sehingga kenyamanan dapat diperoleh. Salah satu ruangan yang menggunakan AC adalah ruang Kepegawaian Rektorat Undana. Kapasitas AC yang terpasang adalah 16 PK. Berdasarkan rekening listrik bulanan di gedung Rektorat Undana, biaya pemakaian listrik berkisar sekitar Rp.801.301.531.- per tahun atau sekitar Rp.66.775.128.- per bulannya. Sehingga perlu dilakukan pengamatan kembali terhadap Intensitas Konsumsi Energi (IKE) listrik dari AC apakah masih hemat atau tidak. Berdasarkan hasil penelitian, beban kalor pada ruang tersebut berkisar antara 175.491,3685 Btu/h sampai dengan 306.961,6477 Btu/h. Namun kondisi yang terjadi didapati ada jendela yang terbuka akibatntya infiltrasi beban kalor pada ruang tersebut besar, sehingga membuat 16 PK AC yang terpasang menyerap arus listrik yang besar akibatnya IKE dari 16 PK sebesar 31,06 kWh/m2/bulan, tergolong sangat boros. Apabila tidak ada jendela yang terbuka maka beban kalor puncak yang seharusnya terjadi adalah 125.434,6370 Btu/h, sehingga AC yang seharusnya beroperasi adalah 14 PK. Nilai IKE dari 14 PK adalah 6,63 kWh/m2/bulan tergolong dalam kriteria sangat efisien.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/492</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.492</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 07-16</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 07-16</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/492/437</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/493</identifier>
				<datestamp>2024-07-07T12:20:42Z</datestamp>
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	<dc:title xml:lang="en-US">Pengaruh Panjang Serat dan Fraksi Volume Terhadap Sifat Tarik Komposit Widuri Poliester</dc:title>
	<dc:creator>Mengga, Arisontae M.</dc:creator>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:description xml:lang="en-US">ABSTRAK
Pemanfaatan material yang dapat diperbaharui, ramah lingkungan dan juga murah sangatlah diharapkan oleh dunia industri. Salah satu material yang dapat memenuhi syarat di atas yaitu material komposit. Salah satu material alternatif dalam pembuatan komposit secara khusus yaitu komposit serat widuri (calotropis gigantea fiber). Adapun tujuan penelitian ini adalah untuk mengetahui pengaruh panjang serat dan fraksi volume terhadap sifat tarik komposit widuri poliester. Bahan yang digunakan dalam penelitian ini adah resin poliester dan serat widuri. Serat widuri yang digunakan diambil dari tanaman widuri yang sedang berbunga (berumur 3 bulan) kemudian diberi perlakuan NaOH selama 2 jam dengan panjang serat 3 mm, 5mm, dan 7 mm. Fraksi volume yang digunakan yaitu 20%, 30% dan 40 % dengan arah orientasi serat acak. Spesimen uji tarik dibuat sesuai dengan standar ASTM D638. Hasil penelitian menunjukkan bahwa kekuatan tarik tertinggi sebesar 16.78 MPa diperoleh pada panjang serat 7 mm dengan fraksi volume 30%, sedangkan kekuatan terendah sebesar 12.41 MPa diperoleh pada panjang serat 3 mm dengan fraksi volume 20%. Regangan tarik tertinggi sebesar 0.036% diperoleh pada panjang serat 7 mm dengan fraksi volume 40% sedangkan terendah sebesar 0.017% diperoleh pada panjang serat 3 mm dengan fraksi volume 20%. Modulus elastisitas tertinggi sebesar 0.76 GPa diperoleh pada panjang serat 3 mm dengan fraksi volume 30%, sedangkan terendah sebesar 0.43 GPa diperoleh pada panjang serat 3 mm dengan fraksi volume 40%. Hasil pengaruh fraksi volume terhadap sifat tarik, kekuatan tarik tertinggi kekuatan tarik tertinggi pada fraksi volume 30% dengan panjang serat 7 mm sebesar 16.78 MPa, sedangkan kekuatan terendah pada fraksi volume 20% dengan panjang serat 3 mm sebesar 12.41 MPa. Regangan tarik tertinggi pada fraksi volume 40% dengan panjang serat 7 mm sebesar 0.036%, sedangkan terendah pada fraksi volume 20%&amp;nbsp; dengan panjang serat 3 mm sebesar 0.017%. Modulus elastisitas tertinggi pada fraksi volume 30% dengan panjang serat 3 mm sebesar 0.76 GPa, sedangkan terendah pada fraksi volume 40% dengan panjang serat 7 mm sebesar 0.43 GPa.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/493</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.493</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 17-26</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 17-26</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/493/438</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/495</identifier>
				<datestamp>2024-07-07T12:20:42Z</datestamp>
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	<dc:title xml:lang="en-US">Pengaruh Tegangan Listrik dan Waktu Terhadap Kekerasan Mikro Pelapisan Nikel-Krom Pada Produk Pengecoran Aluminium Bekas (Scrap)</dc:title>
	<dc:creator>Tahu, Feliks</dc:creator>
	<dc:creator>Maliwemu, Erich U. K.</dc:creator>
	<dc:creator>Limbong, Ishak S.</dc:creator>
	<dc:description xml:lang="en-US">Abstrak
Velg merupakan komponen kendaraan yang saat digunakan mengalami beban dinamis bahkan mengalami beban kejut. Walaupun, saat ini banyak industri lokal pengecoran ulang velg bekas, tetapi produk yang dihasilkan memiliki kekerasan yang rendah sehingga perlu dilakukan pengerjaan akhir dengan cara elektolisa menggunakan nikel-krom. Tujuan penelitian adalah mengetahui pengaruh tegangan listrik dan waktu terhadap kekerasan pelapisan nikel-krom pada produk pengecoran aluminium bekas. Pada pelapisan nikel-krom digunakan tegangan listrik 5, 7,5, 9 volt dan waktu 5, 10, 15 detik. Berdasarkan hasil pengujian menunjukan adanya peningkatan nilai kekerasan pelapisan nikel-krom seiring dengan meningkatnya tegangan listrik dan waktu. Pada tegangan listrik 5 volt sebesar 11,21% - 16,61%, tegangan listrik 7,5 volt sebesar 21,83% - 26,49%, dan tegangan listrik 9 volt sebesar 10,74% - 14,39%. Pada waktu 5 detik sebesar 25,19% - 101,94%, waktu 10 detik sebesar 37,14% - 101,11% dan waktu 15 detik sebesar 35,79% - 98,1%. Dari hasil tersebut menunjukan nilai kekerasan pada tegangan listrik 5 dan 7,5 volt dengan waktu 5, 10, 15 detik, serta pada tegangan listrik 9 volt dengan waktu 5 detik masih dalam daerah kekerasan nikel sedangkan pada tegangan listrik 9 volt dengan waktu 10 dan 15 detik sudah dalam daerah kekerasan krom.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/495</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.495</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 27-36</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 27-36</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/495/439</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/497</identifier>
				<datestamp>2024-07-07T12:20:42Z</datestamp>
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	<dc:title xml:lang="en-US">Pengaruh Fraksi Volume Terhadap Sifat Bending Komposit Widuri-Polyester</dc:title>
	<dc:creator>Nogo, Kasman</dc:creator>
	<dc:creator>Bunganaen, Wenseslaus</dc:creator>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:description xml:lang="en-US">ABSTRAK
Salah satu serat alam yang dapat dieksplorasi menjadi bahan baku untuk komposit adalah serat kulit batang widuri (calotropis gigantea), karena jenis serat ini masih tergolong baru dan merupakan tanaman tropis yang banyak tumbuh di Indonesia terutama diwilayah&amp;nbsp; NTT. Penelitian ini bertujuan untuk mengetahui pengaruh fraksi volume terhadap sifat bending komposit widuri-polyester dengan fraksi volume 20%, 30% dan 40%. Bahan yang digunakan dalam penelitian ini adalah serat kulit batang widuri dalam kondisi sebelum berbunga, saat berbunga dan berbuah dengan matrix resin polyester. Spesimen uji bending dibuat sesuai standar ASTM D790, spesimen uji dicetak dengan metode hand lay up dengan beban tekan sebesar 10 Kg dan dibiarkan seharian, selanjutnya papan komposit dipotong sesuai dengan standar ASTM D790 kemudian dilakukan uji bending. Hasilnya Nilai tegangan bending yang tertinggi terjadi pada fraksi volume 40% dengan nilai 63,322 MPa, dan yang terendah ada pada kondisi tanaman sebelum berbunga dengan fraksi volume 20%, yaitu 37,584 Mpa, molulus elastisitas yang tertinggi terjadi pada kondisi tanaman berbuah pada fraksi volume 30% yaitu 140,834 MPa, dan yang terendah pada kondisi tanaman berbunga pada fraksi volume 20% yaitu 99.654 MPa, sedangkan momen bending yang tertinggi pada kondisi tanaman berbunga dengan fraksi volume 40% yaitu 7501,59 Nmm, dan yang terendah ada pada kondisi tanaman sebelum berbunga dengan fraksi volume 20% yaitu 4984,72 Nmm. Dari hasil foto makro menunjukan jenis patahan banyak pada spesimen uji bending.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/497</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.497</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 37-44</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 37-44</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/497/440</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/498</identifier>
				<datestamp>2024-07-07T12:20:42Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">Pengaruh Panjang Serat dan Fraksi Volume terhadap Sifat Bending pada Komposit Widuri Polyester</dc:title>
	<dc:creator>Bate, Yanuarius</dc:creator>
	<dc:creator>Maliwemu, Erich U. K.</dc:creator>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:description xml:lang="en-US">ABSTRAK
Komposit mempunyai keunggulan tersendiri dibandingkan dengan bahan teknik alternatif lain seperti kuat, ringan, tahan korosi, ekonomis dsb. Serat yang digunakan dalam penelitian ini adalah serat alam (widuri), yang sangat diharapkan bisa menggantikan serat kaca yang susah dijangkau karena harga yang cukup mahal. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh panjang serat dan fraksi volume terhadap sifat bending komposit widuri polyester. Serat widuri diberi perlakuan NaOH 5% selama 2 jam, arah orientasi serat adalah acak pendek dengan ukuran serat 3 mm, 5 mm, dan 7 mm, metode pencetakan dilakukan dengan hand lay up, dengan variasi fraksi volume setiap ukuran serat adalah 20%, 30% dan 40%, serta pengikat yang digunakan adalah&amp;nbsp; resin polyester, pengujian spesimen dilakukan denga uji three point bending dengan standar ASTM D790. Hasil analisa perhitungan diperoleh bahwa&amp;nbsp; kekuatan bending tertinggi yaitu dengan nilai 188,7567 MPa dan nilai kekuatan bending terendah 143,527 MPa, sedangkan nilai modulus elastisitas bending tertinggi yaitu 4,9142 MPa dan nilai modulus elastisitas bending terendah yaitu 2,7078 MPa, untuk nilai momen bending tertinggi yaitu 21516,6 Nmm dan nilai momen bending terendah yaitu 13184,64 Nmm. Dari hasil analisis statistik menunjukan bahwa tidak berpengaruh secara signifikan terhadap fraksi volume dan panjang serat pada komposit widuri polyester. Dari hasil foto bentuk patahan spesimen menunjukan bahwa pada fraksi volumen 20% merupakan patahan yang diakibatkan oleh kegagalan matriks dalam menahan beban, sedangkan pada fraksi volume 30% dan 40% menunjukan bentuk patahan yang diakibatkan oleh kegagalan serat dalam menahan beban.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/498</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.498</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 45-52</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 45-52</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/498/441</dc:relation>
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		<record>
			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/499</identifier>
				<datestamp>2024-07-07T12:20:42Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="en-US">Perancangan Tabung Vaksin Hewan  Berbahan Dasar Polivinil Klorida (PVC) dengan Mengunakan Elemen Peltier</dc:title>
	<dc:creator>Dae Panie, Marthen M.</dc:creator>
	<dc:creator>Limbong, Ishak S.</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:description xml:lang="en-US">ABSTRAK
Pemberian vaksin adalah salah satu cara untuk mencegah penyakit pada hewan ternak sebagai anti body. Vaksin ini sangat rentan karena tidak boleh terkena sinar matahari secara langsung dan tidak boleh dibekukan. Untuk beberapa jenis vaksin harus disimpan pada temperatur 2oC - 8oC. Kendala terberat ketika harus membawa vaksin ke daerah-daerah terpencil yang sulit dijangkau dan tidak memiliki infrastruktur utama seperti jalan yang memadai. Perencanaan tabung pendingin ini memiliki dimensi tabung yang digunakan berukuran 3’’ dan 4’’. Tinggi tabung 3’’ adalah 14,6 cm dan tinggi tabung 4’’ adalah 19,8 cm berbahan dasar polyvinyl chloride. Hasil perencanaan diperoleh tegangan tarik yang terjadi pada selubung tabung pendingin&amp;nbsp; 38,144 kg/. Tegangan tarik pada selubung ruang isolator 68,766 kg/. Tegagan geser penutup ruang pendingin 0,00093 kg/. Tegangan geser pada penutup tabung &amp;nbsp;kg/. Tegangan tekan yang terjadi untuk logam las 8,656 kg/. Tegangan tarik ijin baut 74 N/mm2. Tegangan geser ijin baut 44,4 N/mm2. Diameter baut yang dibutuhkan 0,278 mm.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/499</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.499</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 53-58</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 53-58</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/499/442</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/500</identifier>
				<datestamp>2024-07-07T12:20:42Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">Analisa Unjuk Kerja Alat Penukar Kalor Tipe Shell And Tube Untuk Pendinginan Minyak Pelumas Pada Sistem Penggerak Induced Draft Fan</dc:title>
	<dc:creator>Lebo, Yohanes M. V.</dc:creator>
	<dc:creator>Gusnawati, Gusnawati</dc:creator>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:description xml:lang="en-US">Abstrak
Tujuan dari penelitian ini adalah untuk mengetahui unjuk kerja dari alat penukar kalor berdasarkan beberapa batasan antara lain, alat penukar kalor yang dianalisa adalah tipe selongsong dan pipa, fluida kerja dan fluida pendingin mengalir dalam arah yang berlawanan. Unjuk kerja yang diperhitungkan dalam menganalisa alat penukar kalor antara lain laju perpindahan kalor, beda suhu rata-rata sebenarnya (∆TLMTD), koefisien perpindahan kalor menyeluruh, faktor pengotoran dan metode NTU efektivitas dari alat penukar kalor. Penelitian ini dilaksanakan di Pabrik Semen Kupang II – PT. Sarana Agra Gemilang, KSO PT. Semen Kupang (Persero). Metode analisa data yang digunakan dalam penelitian ini adalah secara deskriptif, berdasarkan informasi data yang didapat dari lapangan. Dari hasil analisa perhitungan diketahui bahwa terjadi penurunan nilai laju perpindahan kalor sebesar 967.741 Watt – 760.172 Watt, seiring dengan peningkatan faktor pengotoran senilai 0.054 m2.oC/W – 0.194 m2.oC/W. Efektivitas alat penukar kalor yang dihasilkan berkisar antara 0.28 – 0.29, sedangkan menurut hubungan antara NTU terhadap Cmin/Cmax diperoleh efektivitas pada rentang 0.64 – 0.45. Dengan demikian alat penukar kalor tipe selongsong dan pipa yang dianalisa wajib dibersihkan, karena nilai efektivitas aktual yang dihasilkan lebih rendah dari nilai efektivitas teoritis.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/500</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.500</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 59-64</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 59-64</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/500/443</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/501</identifier>
				<datestamp>2024-07-07T12:20:42Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
			<metadata>
<oai_dc:dc
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	<dc:title xml:lang="en-US">Analisis dan Aplikasi Kincir Angin Plat Datar Tipe Trapesium sebagai Penggerak Pompa Torak pada Sistem Sirkulasi Air Laut di Tambak Garam</dc:title>
	<dc:creator>Koehuan, Verdy Ariyanto</dc:creator>
	<dc:creator>Neonufa, Suliha N. I.</dc:creator>
	<dc:creator>Boimau, Kristomus</dc:creator>
	<dc:description xml:lang="en-US">ABSTRAK
Analisis dan aplikasi pompa torak dan kincir untuk sistem sirkulasi air laut di tambak garam dilakukan dengan kondisi desain kincir angin plat datar tipe trapezium adalah diameter rotor 2,25 m digunakan sebagai penggerak pompa torak sistem kerja tunggal yang panjang langkahnya 12 cm dan diameter silinder 2,5 inch dari bahan pipa PVC untuk sirkulasi air laut dalam tambak garam dengan debit pompa 0,5 liter/detik. Analisis pompa dan kincir angin untuk diketahui karakteristik torsi dari sistem yang telah dipasang. Dalam penelitian ini, prosedur untuk menghitung parameter desain kincir angin dan pompa didasarkan pada optimasi torsi yang disediakan kincir angin dan torsi yang dibutuhkan pompa tersebut. Hasil penelitian menunjukkan torsi awal yang dibutuhkan kincir untuk menggerakan pompa adalah 21,4 Nm, lebih kecil dari yang dihasilkan kincir yakni 30,1 Nm yang artinya pompa sudah berkerja pada rasio kecepatan ujung blade 0,7 dan kecepatan angin 2,7 m/s. Pada sistem sirkulasi air garam di tambak garam ini telah terpasang empat buah unit kincir dan pompa, masing-masing dua unit pada sisi pemasok air dan dua unit pada sisi sirkulasi. Jadi dengan kapasitas aliran 2 x 0,5 liter per detik atau 60 liter per menit pada meja ulir, akan mengurangi biaya yang dikeluarkan para petani untuk membeli bahan bakar untuk menggerakan pompa diesel yang biasanya mereka gunakan dalam operasional tambak garam.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/501</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.501</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 65-72</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 65-72</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/501/444</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/502</identifier>
				<datestamp>2024-07-07T12:20:42Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
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	<dc:title xml:lang="en-US">Perencanaan Turbin Wells Sistem Osilasi Kolom Air pada Pembangkit Listrik Tenaga Gelombang Laut dengan Kapasitas 10 kW</dc:title>
	<dc:creator>Tae, Valens</dc:creator>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:creator>Nurhayati, Nurhayati</dc:creator>
	<dc:creator>Koehuan, Verdy Ariyanto</dc:creator>
	<dc:description xml:lang="en-US">Abstrak
Sistem konversi energi gelombang laut menjadi energi listrik mengakumulasi energi gelombang laut. Salah satu teknologi sistem konversi energi gelombang laut adalah teknologi osilasi kolom air. Prinsip kerja dari osilasi kolom air adalah membangkitkan listrik dari naik turunnya air laut akibat gelombang laut yang masuk ke dalam sebuah kolom osilasi. Naik turunnya air laut ini akan mengakibatkan keluar masuknya udara di saluran pada bagian atas kolom air dan tekanan yang dihasilkan dari naik turunnya air laut dalam kolom tersebut akan menggerakkan turbin. Tujuan dari penelitian ini adalah melakukan perencanaan turbin Wells sistem osilasi kolom air dengan kapasitas 10kW pada pembangkit listrik tenaga gelombang Laut di Perairan Laut, Pantai Motadikin. Dari&amp;nbsp; hasil&amp;nbsp; perhitungan besarnya daya listrik yang dihasilkan gelombang laut dengan penggunaan PLTGL-OWC dengan daya terkecil sebesar 26.686,96 Watt di bulan Desember, sementara daya sebesar 3.762.948,04 Watt di bulan Maret dan April. Sedangkan untuk penggunaan turbin Wells dengan simulasi yang digunakan mengahasilkan daya mekanik turbin sebesar 15031,13 Watt, dengan effisiensi osilasi kolom air 24,544%.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-12-07</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/502</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v2i2.502</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 2 No 2 (2015): Oktober 2015; 73-80</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 2 No 2 (2015): Oktober 2015; 73-80</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v2i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/502/445</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/3342</identifier>
				<datestamp>2020-12-09T19:22:30Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">Simulasi CFD Performa Aerodinamika Rotor Turbin Angin Counter-Rotating melalui Variasi Rasio Kecepatan Tip Blade dengan Solidity Konstan</dc:title>
	<dc:title xml:lang="id-ID">Simulasi CFD Performa Aerodinamika Rotor Turbin Angin Counter-Rotating melalui Variasi Rasio Kecepatan Tip Blade dengan Solidity Konstan</dc:title>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Mandala, Jani F.</dc:creator>
	<dc:description xml:lang="en-US">The aim of this research is to numerically study the aerodynamic parameters of the rotor, namely the tip speed ratio, stall phenomenon, and flow losses due to the vortex along the turbine rotor blade. Numerical analysis through the CFD or computational fluid dynamics simulation method is applied to counter-rotating wind turbines to predict and analyze the aerodynamic performance of the rotor through variations in the diameter ratio, distance ratio to tip speed ratio on constant rotor solidity. The performance of this turbine rotor is represented as the output power and the power coefficient of each research variable to obtain the best performance as well as the turbine rotor design as the research output. CFD prediction results show a trend that is closer to the experiment, where the maximum power coefficient value occurs at TSR = 6 with CP, max = 0.453 which is 3.09% lower than the experimental results. This shows that the CFD simulation model is validated in almost all of the varied TSR ranges, except at high TSR it tends to move away from the experiment. Flow fluctuation after passing through the second rotor is caused by the vortices in the hub and blade tips of the front and rear rotors. Rotors with misaligned blade tips (D1/D2 &amp;lt;1.0 and D1/D2 &amp;gt; 1.0) are more volatile than rotors with aligned tip blade (D1/D2 = 1.0).</dc:description>
	<dc:description xml:lang="id-ID">Tujuan dari penelitian ini adalah untuk melakukan studi secara numerik terhadap parameter-parameter aerodinamika rotor, yakni rasio kecepatan tip, fenomena stol, serta kerugian-kerugian aliran akibat vorteks di sepanjang blade rotor turbin. Analisis numerik melalui metode simulasi CFD atau computational fluid dynamics diterapkan pada turbin angin counter-rotating untuk dapat memprediksi dan menganalisis kinerja rotor secara aerodinamika melalui variasi rasio diameter, rasio jarak terhadap rasio kecepatan tip blade atau tip speed ratio pada solidity rotor yang konstan. Kinerja rotor turbin ini direpresentasikan sebagai daya output maupun koefisien daya dari setiap variabel penelitian untuk dapat diperoleh kinerja terbaik sekaligus desain rotor turbin sebagai output penelitian. Hasil prediksi CFD menunjukkan tren yang mendekati eksperimen, dimana nilai koefisien daya maksimum terjadi pada TSR = 6 dengan CP,maks = 0.453 dimana lebih rendah 3,09% dari hasil eksperimen. Hal ini menunjukkan bahwa model simulasi CFD tervalidasi pada hampir semua rentang TSR yang divariasikan, kecuali pada TSR tinggi cenderung menjauh dari eksperimen. Fluktuasi aliran setelah melewati rotor kedua diakibatkan oleh vorteks pada hub dan tip blade dari rotor depan maupun rotor belakang. Rotor dengan tip blade yang tidak sejajar (D1/D2 &amp;lt; 1,0 dan D1/D2 &amp;gt; 1,0) lebih fluktuatif dari pada rotor dengan tip sejajar (D1/D2 = 1,0).</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3342</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i02.3342</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 02 (2020): Oktober 2020; 1-14</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 02 (2020): Oktober 2020; 1-14</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3342/2189</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2020 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/3343</identifier>
				<datestamp>2020-12-09T19:22:30Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="en-US">Rancang Bangun Mesin Pemeras Santan Kelapa Dengan Mekanisme Tekan Horizontal</dc:title>
	<dc:creator>Mangesa, Daud P.</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Julfikar, Muhammad</dc:creator>
	<dc:description xml:lang="en-US">Mesin pemeras santan kelapa merupakan sebuah mesin yang digunakan untuk memeras santan kelapa yang terdapat pada parutan kelapa.&amp;nbsp; Mesin ini tersusun atas motor listrik sebagai penggerak yang dilengkapi dengan dimmer AC yang bertujuan untuk mengurangi kecepatan putaran dari motor. Kemudian putaran tersebut ditransmisikan oleh bearing, pulley, belt, yang kemudian akan menggerakkan poros ulir (screw press). Berdasarkan perhitungan dalam perencanaan, mesin&amp;nbsp; pemeras santan kelapa ini didapatkan diameter poros yang digunakan adalah 24,5 mm, dan diameter ulir pada poros (secrew press) adalah 70 mm dengan daya motor listrik 1 HP. Berdasarkan penelitian, diperlukan putaran rendah untuk memeras santan kelapa hal ini dimaksudkan agar perasan tersebut lebih optimal. Pemerasan santan kelapa dilakukan cukup 1 kali karena kandungan santan dalam parutan kelapa sudah terperas seluruhnnya. Dengan sistem ini dapat mempercepat proses produksi serta lebih efisien dari segi ekonomi</dc:description>
	<dc:description xml:lang="id-ID">Coconut milk squeezer is used to squeeze coconut milk that found in grated coconut. This machine is composed of electric motor as a driver that which is equipped with an AC dimmer to reduce the rotation speed of the motor. Then, the round is transmitted by the bearing, pulley, belt which will move the screw shaft (screw press). Based on calculations in planning, coconut milk squeezer has a shaft diameter used is 24,5 mm, and thread diameter on the shaft (screw press) is 70 mm with electric motor power is 1 PH. Based on the research, low rotation is needed to squeeze the coconut milk, this is done so that extortion is more optimal. Squeeze coconut milk is only once because the content of coconut milk in grated coconut has been completely absorbed. With this system it is expected to accelerate the production process and be more economically efficient</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3343</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i02.3343</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 02 (2020): Oktober 2020; 15-21</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 02 (2020): Oktober 2020; 15-21</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3343/2191</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2020 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/3344</identifier>
				<datestamp>2020-12-09T19:22:30Z</datestamp>
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<oai_dc:dc
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	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Analisis Pengaruh Temperatur Dan Perlakuan Korosi Terhadap Ketahanan Putus Tabung Silinder Asetilin Bermaterial Drum Besi Bekas (Baja AISI 1045)</dc:title>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Bunganaen, Wenseslaus</dc:creator>
	<dc:creator>Mandala, Bahrun K. A.</dc:creator>
	<dc:description xml:lang="en-US">corrosion rate of cylinder tube materials. The temperature variations determined by the specimen were 200ºC, 250ºC and 300ºC. The specimens were subjected to corrosion treatment with Calcium Carbide (Carbide) corrosion media, then tested. The results showed that the lowest corrosion rate was the treatment specimen, namely 48.57142 mg/cm2 day, while the specimen with the highest rate was the specimen with the provisions of 70.47619 mg/cm2 day. For the tensile test, the highest value of fracture tensile stress (σp) was the untreated specimen of 243.35 MPa, while the lowest value of fracture stress (σp) was the specimen with a temperature of 300oC of 156,786 Mpa, the highest value of fracture tensile strain (ɛp) was the specimen with 300oC of 0.166875%, while the lowest value of fracture tensile strain (ɛp) is the specimen with the provision of 250 °C of 0.12025%, the highest modulus of elasticity is the specimen with the 200oC requirement of 1569.2026 MPa, while the lowest modulus of elasticity is the specimen with 300 °C of 939.5415 MPa</dc:description>
	<dc:description xml:lang="id-ID">Peneletian ini bertujuan menganalisis pengaruh variasi temperatur dan pemberian perlakuan korosi terhadap kekuatan tarik dan laju korosi material tabung silinder asetilin. Variasi temperatur pemanasan spesimen yaitu 200ºC, 250ºC, dan 300ºC. Spesimen diberikan perlakuan korosi dengan media korosi Kalsium Karbida (Karbid), setelah itu dilakukan pengujian tarik. Hasil penelitian menunjukan bahwa spesimen dengan laju korosi terendah adalah spesimen tanpa perlakuan yaitu 48,57142&amp;nbsp; mg/cm2hari, sedangkan spesimen dengan laju korosi tertinggi adalah spesimen dengan pemanasan 300oC yaitu 70,47619&amp;nbsp; mg/cm2hari. Untuk pengujian tarik, nilai tegangan tarik patah (σp) tertinggi yaitu spesimen tanpa perlakuan sebesar 243,35 MPa, sedangkan nilai tegangan tarik patah (σp) terendah yaitu spesimen dengan pemanasan pada temperatur 300oC sebesar 156,786 Mpa, nilai regangan tarik patah (ɛp) tertinggi yaitu spesimen dengan pemanasan 300oC sebesar 0,166875 %, sedangkan nilai regangan tarik patah (ɛp) terendah yaitu spesimen dengan pemanasan 250°C sebesar 0,12025 %, nilai modulus elastisitas tertinggi yaitu spesimen dengan pemanasan 200oC sebesar 1569,2026 MPa, sedangkan nilai modulus elastisitas terendah yaitu spesimen dengan pemanasan 300°C sebesar 939,5415 MPa</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3344</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i02.3344</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 02 (2020): Oktober 2020; 22-27</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 02 (2020): Oktober 2020; 22-27</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i02</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3344/2194</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2020 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/3345</identifier>
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	<dc:title xml:lang="en-US">Studi Eksperimental Skala Laboratorium Rumah Pengering Kopi Menggunakan Plastik Ultra Violet (UV Solar Dryer) Dengan Mekanisme Konveksi Paksa</dc:title>
	<dc:creator>Runesi, Riky Yonerto</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Nurhayati, Nurhayati</dc:creator>
	<dc:description xml:lang="en-US">The utilization of solar radiation in the greenhouse effect dryer (ERK) is an alternative to overcome the drying process constraints. The drying process in direct sunlight, which is common in the community, has drawbacks, such as low capacity and takes a long time, and the risk of contamination and disturbance from animals during the drying process. Meanwhile, the quality criteria for coffee beans include physical aspects, taste, and cleanliness as well as uniform and consistent aspects which are largely determined by the treatment at each stage of the production process. The drying process uses ultraviolet plastic (UV solar dryer) to absorb solar radiation and the heat is trapped, then it is used for the drying process of the material. The problem studied is how the performance of the coffee bean drying house through experimental studies using ultraviolet plastic (UV solar dryer) using the forced convection mechanism. The purpose of this study was to determine the efficiency of the coffee bean drying house and the drying rate on the speed of the outflow of air through the exhaust fan. Drying time starts from 11.00 to 15.00 with a total initial coffee weight of 53.37 kg (drying capacity 7.76 kg/m2) and an initial moisture content of 45.5%. From the experimental results, the temperature distribution in the dryer house with an increase in the outflow velocity through the exhaust fan, the air temperature distribution in the dryer house tends to be uniform. However, the variation in flow rate shows the highest coffee bean drying rate at an exit speed of 1.0 m/s, with an efficiency of 9.68% and specific energy consumption of 32799.64 kJ/kg</dc:description>
	<dc:description xml:lang="id-ID">Pemanfaatan radiasi matahari dalam pengering efek rumah kaca (ERK) merupakan alternatif untuk mengatasi kendala proses pengeringan. proses pengeringan di bawah sinar matahari langsung yang umum berlaku di masyarakat terdapat kekurangan, seperti kapasitas yang rendah dan membutuhkan waktu yang lama, serta resiko kontaminasi dan gangguan dari binatang selama proses penjemuran. Sementara kriteria mutu biji kopi meliputi aspek fisik, citarasa dan kebersihan serta aspek keseragaman dan konsisten yang sangat ditentukan oleh perlakuan pada setiap tahapan proses produksinya. Proses pengeringan dengan menggukan plastik ultra violet (UV solar dryer) sebagai penyerapan radiasi matahari dan panasnya terperangkap, selanjutnya dimanfaatkan untuk proses pengeringan bahan. Permasalahan yang diteliti adalah bagaimana kinerja rumah pengering biji kopi melalui studi eksperimental menggunakan plastik ultra violet (UV solar dryer) dengan cara mekanisme konveksi paksa. Tujuan dari penelitian ini agar dapat mengetahui efisiensi rumah pengering biji kopi dan laju pengeringan terhadap kecepatan aliran udara keluar melalui exhaust fan. Waktu pengeringan dimulai dari jam 11.00 hingga 15.00 dengan total berat kopi awal 53,37 kg (kapasitas pengeringan 7,76 kg/m2) dan kadar air awal 45,5%. Dari hasil eksperimen, distribusi termperatur di dalam rumah pengering dengan peningkatan kecepatan aliran keluar melalui exhaust fan, distribusi temperatur udara di dalam rumah pengering cenderung seragam. Namun variasi laju aliran menunjukkan laju pengeringan biji kopi tertinggi pada kecepatan keluar 1,0 m/s, dengan efisiensi 9,68 % dan konsumsi energi spesifik 32799,64 kJ/kg</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3345</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i02.3345</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 02 (2020): Oktober 2020; 28-37</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 02 (2020): Oktober 2020; 28-37</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i02</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3345/2192</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2020 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/3346</identifier>
				<datestamp>2020-12-09T19:22:30Z</datestamp>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
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	<dc:title xml:lang="en-US">Studi Eksperimental Rumah Pengering Kopi Menggunakan Plastik Ultra Violet (Uv Solar Dryer) Dengan Mekanisme Konveksi Alamiah</dc:title>
	<dc:creator>Budi, Sam</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Nurhayati, Nurhayati</dc:creator>
	<dc:description xml:lang="en-US">Ultraviolet solar dryer atau biasa disebut juga metode pengeringan dengan menggunakan efek rumah kaca (ERK) merupakan metode pengeringan yang memanfaatkan energi surya sebagai sumber energi utama. Radiasi dari sinar matahari diserap langsung oleh plastik UV yang berfungsi sebagai penghantar dan penahan panas sehingga temperatur didalam suatu tempat atau ruangan yang ditutupi oleh plastik UV ini tetap terjaga. Studi eksperimental rumah pengering kopi menggunakan plastik ultra violet (uv solar dryer) dengan mekanisme konveksi alamiah ini dilakukan dengan menggunakan metode eksperimen.&amp;nbsp; Tujuan untuk mengetahui waktu pengeringan biji kopi terhadap distribusi temperatur ruangan rumah pengering dengan mekanisme konveksi alamiah. Hasil pengujian menunjukkan pengaruh waktu pengeringan biji kopi terhadap distribusi temperatur di dalam ruangan rumah pengering dengan mekanisme konveksi alamiah. Pengaruh waktu pengeringan terhadap distribusi temperatur ruangan rumah pengering terlihat sedikit fluktuatif. Namun rata-rata temperatur ruangan dari beberapa titik pengukuran relatif seragam dengan nilai lebih tinggi dari lingkungan. Nilai kadar air basis basah 3,17 %, basis kering 3,07 % dan rata – rata kadar air akhir biji kopi 20,45%,&amp;nbsp; laju pengeringan 0,77 %bb/jam, dan efisiensi rumah pengering 4,84 %.</dc:description>
	<dc:description xml:lang="id-ID">Ultraviolet solar dryer or also known as the drying method using the greenhouse effect (ERK) is a drying method that utilizes solar energy as the main energy source. Radiation from sunlight is absorbed directly by UV plastic which functions as a conductor and heat barrier so that the temperature in a place or room covered by UV plastic is maintained. The experimental study of the coffee dryer house using ultraviolet plastic (UV solar dryer) with a natural convection mechanism was carried out using an experimental method. The aim was to determine the drying time of the coffee beans on the temperature distribution of the drying house using natural convection mechanisms. The test results showed the effect of coffee bean drying time on the temperature distribution in the room of the drying house using natural convection mechanisms. The effect of drying time on the room temperature distribution of the drying house is slightly fluctuating. However, the average room temperature of several measurement points is relatively uniform with higher values ​​from the environment. The moisture content value of the wet basis was 3.17%, the dry basis was 3.07% and the average final moisture content of the coffee beans was 20.45%, the drying rate was 0.77% w / h, and the efficiency of the drying house was 4.84%.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3346</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i02.3346</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 02 (2020): Oktober 2020; 38-44</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 02 (2020): Oktober 2020; 38-44</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i02</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3346/2193</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2020 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/3378</identifier>
				<datestamp>2021-05-17T16:50:26Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">Analisis Tinggi dan Temperatur Api pada Pembakaran Premixed Campuran Minyak Solar Murni dan Fame (Fatty Acid Methyl Ester)</dc:title>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Pah, Jack C. A.</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:creator>Wagimin, Wagimin</dc:creator>
	<dc:description xml:lang="en-US">Penelitian ini dilakukan dengan membakar campuran minyak solar murni dan minyak FAME (Fatty Acid Methyl Ester) dengan prosentase campuran solar murni (80%, 90%, dan 95%) dan minyak FAME (20%, 10%, dan 5%) secara premixed. Berdasarkan hasil penelitian didapatkan bahwa semakin besar prosentase minyak FAME yang ditambahkan maka tinggi api dan temperatur api menurun, meski penurunannya tidak terlalu signifikan. Pada prosentase minyak solar murni dan FAME (Solar 95% - FAME 5%)&amp;nbsp; Pada debit udara 350 ml/min dengan equivalence ratio 1.571 pada prosentase minyak solar 95% - FAME 5%, 1.535 pada prosentase minyak solar 90% - FAME 10% dan 1.462 pada prosentase minyak solar 80% - FAME 20%. Hubungan prosentase minyak solar dan FAME terhadap temperatur pada dua titik pengambilan temperatur yaitu bagian ujung api dan bagian tengah dekat ujung burner. Terlihat bahwa semakin besar prosentase minyak FAME maka semakin kecil temperatur apinya.</dc:description>
	<dc:description xml:lang="id-ID">This research was conducted by burning a mixture of pure diesel oil and FAME (Fatty Acid Methyl Ester) oil with the percentage of a mixture of pure diesel (80%, 90%, 95%) and FAME oil (20%, 10%, 5%) premixed. Based on the research results was found that the greater the percentage of FAME oil added, the fire height and temperature decreased, although the decrease was not too significant. At the percentage of pure diesel oil and FAME (Solar 95% - FAME 5%) at the airflow rate of 350 ml/min with an equivalent ratio of 1,571 at the percentage of diesel oil 95% - FAME 5%, 1,535 at the diesel oil 90% - FAME 10% and 1,462 at 80% of diesel oil - FAME 20%. The relationship between the percentage of diesel oil and FAME against the temperature at two temperature taking points is defined. As shown at the end of the flame and the center near the end of the burner. It can be seen that the greater the percentage of FAME oil, the smaller the flame temperature.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3378</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i01.3378</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 01 (2020): April 2020; 01-07</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 01 (2020): April 2020; 01-07</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3378/2232</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/3379</identifier>
				<datestamp>2021-05-17T16:50:59Z</datestamp>
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	<dc:title xml:lang="id-ID">Karakteristik Pembakaran Difusi Campuran Solar Murni dengan Minyak Kelapa</dc:title>
	<dc:creator>Pah, Jack C.A.</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:creator>Siagian, Suprianto</dc:creator>
	<dc:description xml:lang="en-US">This research was conducted to determine the effect of adding coconut oil to pure diesel oil on the characteristics of diesel oil steam diffusion combustion. The characteristics observed are flame height and fire temperature. The combustion process is carried out on a circular tube burner. The steam mass flow of fuel in this study is 0.0895 grams / second. From the results of the study the biggest results were obtained in the mixture of 90% diesel oil with 10% coconut oil, fire height of 94.51 mm and a temperature of 967˚C and the lowest yield was found in a mixture of 70% diesel oil and 30% coconut oil, namely temperature amounting to 796˚C and fire height of 68.85 mm. From this, it can be concluded that the greater the percentage of diesel oil added to the combustion process, the higher and the flame temperature will increase. This is due to the characteristics of different fuels, where diesel oil has a lower viscosity than coconut oil and has a heating value greater than coconut oil.</dc:description>
	<dc:description xml:lang="id-ID">Penelitian ini dilakukan untuk mengetahui pengaruh penambahan minyak kelapa ke dalam minyak solar murni terhadap karakteristik pembakaran difusi uap minyak solar. Karakteristik yang diamati adalah tinggi nyala api dan temperatur api. Proses pembakaran dilakukan pada circular tube burner. Massa alir uap bahan bakar dalam penelitian ini adalah sebesar 0,0895 gram/detik. Dari hasil penelitian didapatkan hasil terbesar yaitu pada campuran minyak solar 90% dengan minyak kelapa 10%, tinggi api sebesar 94,51 mm dan temperatur sebesar 967°C dan hasil terendah didapatkan pada campuran minyak solar 70% dan minyak kelapa 30%, yaitu temperatur sebesar 796°C dan tinggi api 68,85 mm. Dari hal tersebut maka bisa disimpulkan bahwa semakin besar prosentase minyak solar yang ditambahkan dalam proses pembakaran, maka tinggi dan temperatur nyala api akan semakin meningkat. Ini dikarenakan karakteristik dari bahan bakar yang berbeda, dimana minyak solar memiliki viskositas yang lebih rendah dari minyak kelapa dan memiliki nilai kalor yang lebih besar dari minyak kelapa</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3379</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i01.3379</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 01 (2020): April 2020; 08-14</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 01 (2020): April 2020; 08-14</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3379/2233</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/3380</identifier>
				<datestamp>2021-05-17T16:51:25Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
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	<dc:title xml:lang="id-ID">Analisis Perubahan Debit Aliran Pada Pipa Keluar dan efisiensi akibat Perubahan Diameter Katup Pengantar</dc:title>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:description xml:lang="en-US">Tujuan penelitian adalah untuk menganalisis perubahan debit aliran pada pipa keluar, jumlah ketukan dan efiisensi pompa akibat perubahan diameter katup pengantar. Metode yang digunakan adalah eksperimen terhadap spesimen, dan di analisis menggunakan persamaan matematis dalam teori pompa hidram. Data-data yang diukur adalah debit air masuk, debit air limbah, debit air keluar serta jumlah ketukan. Variabel bebas dalam penelitian ini adalah diameter katup pengantar yaitu 2.0 inci, 2.25 inci, 2.50 inci, 2.75 inci. Selanjutnya dilakukan analisis head loss dan efisiensi pompa hidram. Hasil analisis menunjukan bahwa diameter katup pengantar berpengaruh terhadap debit aliran pada pipa keluar, jumlah ketukan dan efiisensi pompa.. Efisiensi pompa hidram tertinggi dalam penelitian ini adalah pada diameter katup pengantar 2.75 inci sebesar 40.09 %. Sedangkan efisiensi pompa hidram terendah terjadi pada diameter katup pengantar 2 inci yaitu sebesar 0.0000498 m3/s.</dc:description>
	<dc:description xml:lang="id-ID">The research objective was to analyze changes in flow rate at the outlet pipe, the number of knocks, and pump efficiency due to changes in the diameter of the delivery valve. The method used is the experiment on specimens and is analyzed using mathematical equations in the theory of the hydram pump. The data measured are the flow of water in, discharge of waste-water, discharge of water out, and the number of beats. The independent variable in this study is the diameter of the introductory valve, namely 2.0 inches, 2.25 inches, 2.50 inches, and 2.75 inches. Furthermore, an analysis of the head loss and efficiency of the hydram pump is performed. The results of the analysis show that the diameter of the delivery valve affects the flow rate in the outlet pipe, the number of knocks, and the pump efficiency. The highest efficiency of the hydram pump in this study is the delivery valve diameter of 2.75 inches by 40.09%. While the lowest hydram pump efficiency occurs at a 2-inch diameter of the delivery valve, which is equal to 0.0000498 m3/s.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3380</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i01.3380</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 01 (2020): April 2020; 15-22</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 01 (2020): April 2020; 15-22</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3380/2234</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/3381</identifier>
				<datestamp>2020-12-09T20:35:31Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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<oai_dc:dc
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	xmlns:dc="http://purl.org/dc/elements/1.1/"
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	<dc:title xml:lang="id-ID">Pengaruh Penambahan Solar Murni terhadap Karakteristik Pembakaran Difusi Uap Minyak Kelapa</dc:title>
	<dc:creator>Tobe, Adi</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Pah, Jack</dc:creator>
	<dc:creator>Liba, Kyven G. Hoke</dc:creator>
	<dc:description xml:lang="en-US">Minyak kelapa merupakan minyak nabati yang ramah lingkungan dan sangat mudah didapatkan di Indonesia, selain itu minyak kelapa dapat digunakan sebagai energi alternatif. Penelitian ini dilakukan untuk mengetahui pengaruh penambahan solar murni terhadap karakteristik pembakaran difusi uap minyak kelapa. Metode yang digunakan dalam penelitian ini adalah metode eksperimen. Dari penelitian ini didapatkan bahwa pada campuran 90% minyak kelapa + 10% solar murni tinggi api hasil pembakaran 6,83 mm dengan suhu 328 ° C, sedangkan pada campuran minyak kelapa 80% + solar murni 20%, hasil pembakaran 12,86 mm dengan suhu 389 ° C dan pada variasi campuran minyak kelapa 70% + solar murni 30% menghasilkan hasil pembakaran 23,15 mm dengan suhu 423 ° C. Perbedaan ketinggian nyala api dan suhu disebabkan oleh perbedaan viskositas dan nilai kalor dari kedua oli tersebut. Oleh karena itu dari penelitian ini dapat disimpulkan bahwa setiap penambahan solar murni suhu dan ketinggian api akan meningkat</dc:description>
	<dc:description xml:lang="id-ID">Coconut oil is environmentally friendly vegetable oil and is very easy to obtain in Indonesia, therefore coconut oil can be used as alternative energy. This study was conducted to determine the effect of adding pure diesel fuel to the characteristics of coconut oil steam diffusion combustion. The method used in this study is a real experimental method. From this study, it was found that in a mixture of 90% coconut oil + 10% pure diesel fuel burning results 6.83 mm with a temperature of 328 ° C, while in a mixture of 80% coconut oil + 20% pure diesel fuel, the result of combustion 12, 86 mm with a temperature of 389 ° C and in a variation of a mixture of 70% coconut oil + 30% pure diesel fuel burning yield 23.15 mm with a temperature of 423 ° C. The difference in flame height and temperature is due to the difference in viscosity and heating value of the two oils. Therefore, from this research, it can be concluded that in every addition of pure diesel fuel, the temperature and height of the fire will increase.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3381</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i02.3381</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 02 (2020): Oktober 2020; 45-49</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 02 (2020): Oktober 2020; 45-49</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3381/2235</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/3542</identifier>
				<datestamp>2021-05-17T16:51:48Z</datestamp>
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			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="id-ID">Pengaruh Orientasi Serat Terhadap Sifat Tarik Komposit Poliester Berpenguat Serat Pisang</dc:title>
	<dc:creator>Boimau, Kristomus</dc:creator>
	<dc:description xml:lang="en-US">Serat alam semakin diminati sebagai media penguat material komposit polimer karena sifatnya yang mudah didaur ulang, ringan, murah, dapat perbaharui dan tidak mencemari lingkungan. Penelitian ini bertujuan untuk mengetahui Pengaruh Orientasi Serat Terhadap Sifat Tarik Komposit Polyester Berpenguat Serat Pisang. Bahan yang digunakan adalah serat batang pisang yang dianyam dan matrik polyester. Serat diperoleh dari batang pisang yang sudah tua, kemudian serat dianyam menjadi lembaran dengan ukuran 20 cm x 25 cm. Selanjutnya lembaran serat tersebut direndam dalam larutan alkali dengan konsentrasi larutan 5% selama 3 jam.&amp;nbsp; Setelah direndam dalam larutan alkali, serat dicuci dengan air bersih agar serat terbebas dari zat alkali.&amp;nbsp; Orientasi serat yang digunakan adalah [0/0/0], [0/45/0] dan [45/0/45]. Selanjutnya komposit dicetak dengan metode hand ly up diikuti penekanan selama 24 jam. Komposisi campuran serat dan matrik didasarkan pada aturan Rule of Mixture (RoM), dengan fraksi berat serat sebesar 15%. Specimen uji dibuat sesuai standar ASTM D638-02 dan diuji dengan alat uji tarik. Hasil pengujian tarik menunjukkan bahwa kekuatan tarik tertinggi diperoleh pada komposit yang diperkuat oleh serat yang diberi perlakuan NaOH dan orientasi serat [0/0/0] yaitu 14,2 MPa. Sedangkam kekuatan impak terendah diperoleh pada komposit yang diperkuat oleh serat untreated dengan orietasi serat [45/0/45] yaitu 8,6 MPa</dc:description>
	<dc:description xml:lang="id-ID">Natural fibers are increasingly in demand as a reinforcing for polymer composite materials because they are easily recycled, lightweight, inexpensive, and renewable and environment friendly. This study aims to determine the effect of fiber orientation on the tensile properties of polyester composite reinforcing banana fibers. The materials used are woven banana stem fibers and a polyester matrix. Fiber is obtained from old banana stems, then the fibers are woven into sheets dimension 20 cm x 25 cm. Furthermore, the fiber sheet is immersed in an alkaline solution with a solution concentration of 5% for 3 hours. After soaking in an alkaline solution, the fibers are washed with clean water so that the fibers are free from alkaline effect. The orientation of the fibers used were [0/0/0], [0/45/0] and [45/0/45]. Furthermore, the composite was molded using the hand ly up method and pressing for 24 hours. The composition of the fiber and matrix mixture is based on the Rule of Mixture (RoM), with a fiber weight fraction of 15%. The test specimens are made according to ASTM D638-02 standard and tested used tensile test equipment. The results of the tensile test showed that the highest tensile strength was obtained in the composite reinforced by the fiber treated with NaOH and the fiber orientation [0/0/0] as 14.2 MPa. Meanwhile, the lowest impact strength was obtained in the composite reinforced by untreated fibers with fiber orientation [45/0/45] is 8.6 MPa</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3542</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i01.3542</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 01 (2020): April 2020; 23-27</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 01 (2020): April 2020; 23-27</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3542/2351</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/3543</identifier>
				<datestamp>2020-12-17T11:10:08Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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	<dc:title xml:lang="id-ID">Analisis Kekuatan Tarik Komposit Hybrid Berpenguat Chip Daun  Gewang Dan Serat Pendek E-Glass</dc:title>
	<dc:creator>Bale, Jefri S.</dc:creator>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:creator>Boimau, Kristomus</dc:creator>
	<dc:creator>Lelu, Finsensius</dc:creator>
	<dc:description xml:lang="id-ID">The use of natural fiber as reinforcement for composite materials provides several advantages such as low density, biodegradable, easily recycled, inexpensive, good mechanical properties, and renewable because it comes from nature. One of the natural fibers that can be used as reinforcement for polymer composites is gewang leaves. This study aims to analyze the tensile strength of a hybrid composite with gewang leaf chip and E-glass short fiber reinforcement. The tensile strength &amp;nbsp;of&amp;nbsp; 61.25 Mpa and the stiffness modulus of 90.83 MPa produced by the E-glass fiber composite which is higher compared to the gewang leaf chip composite and the hybrid composite. The results showed that gewang leaf chip composite and the hybrid (gewang leaf chip + e-glass short fiber) can only be used for accessories applications such as car dashboards in the transportation industry that mechanical strength is not the prime factor.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3543</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i01.3543</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 01 (2020): April 2020; 28-33</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 01 (2020): April 2020; 28-33</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i01</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3543/2352</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/3560</identifier>
				<datestamp>2020-12-22T00:35:25Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">Desain dan Analisa Awal Struktur Rangka Manual Motorcycle Lift Dengan Menggunakan Software Ansys 17.0</dc:title>
	<dc:creator>Koten, Fransiskus L. H.</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Limbong, Ishak S.</dc:creator>
	<dc:description xml:lang="en-US">Motorcycle lift, merupakan alat penunjang, yang dibutuhkan untuk mengurangi cedera otot akibat kegiatan perawatan dan perbaikan, dengan mengatur posisi tinggi rendahnya motor terhadap postur tubuh mekanik (montir). Walaupun motorcycle lift telah ada, tetapi alat tersebut menggunakan tenaga hidrolik atau pneumatik dengan listrik sebagai tenaga utama. Hal ini berpengaruh pada daerah yang tidak memiliki tenaga listrik. Selain itu pada studi ini, konstruksi motorcycle lift yang didesain menggunakan software Ansys 17.0. Dengan menggunakan software Ansys, analisa desain struktur lebih detail dan dapat melihat titik kritis lebih detail. Tujuan dari studi ini adalah mendesain dan menganalisa konstruksi manual motorcycle lift untuk daerah yang belum memiliki jalur listrik. Metode penelitian yang dilakukan adalah metode simulasi dengan software Ansys 17.0. Parameter yang digunakan adalah beban 3600 N, panjang alat 180 cm, lebar 78 cm, dan tinggi maksimum 60 cm. Material yang digunakan adalah baja konstruksi (karbon rendah). Bahan digunakan adalah baja konstruksi (baja karbon rendah). Analisa konstruksi terbagi atas 3 posisi ketinggian kritis, yaitu minimum ketinggian (120 mm), medium ketinggian (360 mm), dan maksimum ketinggian (600 mm). Tegangan dan regangan equivlen untuk masing-masing ketinggian dianalisa menggunakan Sofware Ansys 17.0 tersebut. Nilai maksimum terdapat pada daeran pin.</dc:description>
	<dc:description xml:lang="id-ID">The motorcycle lift is an equipment that is needed to reduce muscle injuries due to maintenance and repair activities by adjusting the height position of a motorbike to the mechanic's posture. Even though several motorcycle lifts have been produced, they use hydraulic or pneumatic with electricity as their primary power. This condition affects areas that do not have electricity. Also, in this study, the construction of the motorcycle lift is designed using Ansys 17.0 software. By using Ansys software, structural design analysis is more detailed, and the critical points are detailed. This study's aim is to design and analyze the manual construction of a motorcycle lift for areas that do not have electric lines. The research method was used is a simulation method with Ansys 17.0 software. The parameters used are 3600 N load, 180 cm tool length, 78 cm width, and 60 cm maximum height. The material used is construction steel (low carbon). The material used is construction steel (low carbon steel). Construction analysis was divided into 3 critical height positions, namely minimum height (120 mm), medium height (360 mm), and maximum height (600 mm). The equivalent stresses and strain for each height were analyzed using the Ansys 17.0 software. Maximum value were founded at pin.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2020-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3560</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v7i02.3560</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 7 No 02 (2020): Oktober 2020; 50-57</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 7 No 02 (2020): Oktober 2020; 50-57</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v7i02</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/3560/2385</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/4099</identifier>
				<datestamp>2021-06-02T12:04:42Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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	<dc:title xml:lang="id-ID">Rancang Bangun dan Analisis Kinerja Rumah Pengering Kopi Tipe Efek Rumah Kaca dengan Mekanisme Konveksi Paksa</dc:title>
	<dc:creator>Dipa, Domi K.</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:description xml:lang="en-US">Penelitian ini bertujuan untuk merancang rumah pengering kopi menggunakan plastik ultra violet (UV Solar Dryer) dengan mekanisme konveksi paksa dan menguji performansi rumah pengering kopi. Penelitian ini dilakukan dengan melakukan perancangan rumah pengering biji kopi terlebih dahulu dan kemudian dilakukan uji performansi dari rumah pengering tersebut. Desain rumah pengering dengan ukuran 5,5 x 2,9 x 1,9 meter menggunakan cover berupa plastik ultra violet. Di dalam rumah pengering terdapat tiga buah rak permanen dengan ukuran masing-masing rak adalah 3,5 x 0,5 x 0,85 meter. Untuk mempercepat proses pengeringan, meratakan suhu bahan serta menguapkan air bahan maka dipasanglah dua buah exhaust fan dengan ukuran 0,35 x 0,22 x 0,395 meter. Uji performansi dilakukan dengan tiga variasi kecepatan udara pada exhaust fan yaitu 0,5 ; 1,0 ; dan 1,36 m/s. Besaran-besaran penting yang dianalisis adalah laju pengeringan bahan, konsumsi energi spesifik (KES) dan efisiensi penggunaan energi. Analisis teknik menunjukkan bahwa rumah pengering kopi layak untuk&amp;nbsp; digunakan dalam usaha pengeringan kopi. Hal ini didasarkan pada nilai&amp;nbsp; efisiensi pengeringan yang dicapai pada pengujian di pukul 14.00 dengan kecepatan udara 1,0 m/s cenderung lebih besar dari pada pengujian dengan kecepatan 1,36 m/s dan 0,5 m/s di pukul 11.00, 12.00, 13.00 dan 15.00 dengan nilai efisiensi tertinggi 19,448 %. Sedangkan untuk nilai konsumsi energi spesifik (KES) tertinggi pada pengujian di pukul 12.00 dengan kecepatan udara 0,5 m/s adalah 93824,19 kJ/kg.</dc:description>
	<dc:description xml:lang="id-ID">This study aims to design a coffee dryer house using ultra violet plastic (UV Solar Dryer) with a forced convection mechanism and to test the performance of the coffee dryer house. This research was conducted by designing the coffee bean drying house and testing the performance of the drying house. The design of the dryer house with a size of 5.5 x 2.9 x 1.9 meters uses a cover in the form of ultra violet plastic. Inside the dryer house there are three permanent racks with a size of 3.5 x 0.5 x 0.85 meters each. To speed up the drying process, equalize the temperature of the material and evaporate the material water, two exhaust fans are installed with a size of 0.35 x 0.22 x 0.395 meters. The performance test was carried out with three variations of air velocity at the exhaust fan, namely 0.5; 1.0; and 1.36 m/s. The important quantities analyzed are the drying rate of the material, the specific energy consumption and the efficiency of energy use. Technical analysis shows that the coffee dryer house is suitable for use in the coffee drying business. This is based on the drying efficiency value achieved in the test at 14.00 with an air velocity of 1.0 m/s which tends to be greater than the test with a speed of 1.36 m/s and 0.5 m/s at 11.00, 12.00, 13.00 and 15.00 with the highest efficiency value of 19.448%. Meanwhile, the highest value of specific energy consumption in the test at 12.00 with an air velocity of 0.5 m/s was 93824.19 kJ/kg</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4099</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4099</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 1-10</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 1-10</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4099/2572</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/4100</identifier>
				<datestamp>2021-06-02T12:04:42Z</datestamp>
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	<dc:title xml:lang="en-US">Simulasi Computational Fluid Dynamic (CFD) Rumah Pengering Kopi Menggunakan Plastik UltraViolet (UV) Solar Dryer</dc:title>
	<dc:creator>Ndeo, Yoseph P.</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Bunganaen, Wenseslaus</dc:creator>
	<dc:description xml:lang="en-US">Pengeringan hasil pertanian secara khusus pada biji kopi adalah pengeluaran air dari suatu hasil pertanian sampai tercapai kadar air keseimbangan dengan udara lingkungan atau sampai tingkat kadar air dimana jamur, serangga dan enzim yang bersifat merusak tidak dapat aktif lagi. Pemanfaatan energi surya dengan menggunakan plastik ultra violet (UV) juga merupakan alternatif untuk mengatasi kendala pengeringan dengan sinar matahari langsung yang umum berlaku di masyarakat seperti kapasitas yang rendah dan membutuhkan waktu yang lama. Dengan menggunakan simulasi computational fluid dynamics (CFD) dalam penelitian ini untuk dapat mengetahui distribusi temperatur dan kecepatan aliran pada rumah pengering kopi. Dari hasil simulasi CFD maupun eksperimen dengan kecepatan aliran 0,1 m/s, 0,5 m/s dan 1,36 m/s baik tanpa beban maupun dengan beban pengeringan terdapat perbedaan temperatur dimana pada kecepatan 0,1 m/s dan 0,5 m/s nilai rata-rata temperatur hasil simulasi CFD dengan model aliran turbulen lebih rendah dari hasil eksperimen sedangkan pada&amp;nbsp; kecepatan 1,36 m/s relativ mendekati hasil eksperimen. Dari hasil analisis distribusi temperatur udara di dalam rumah pengering menunjukkan pada laju aliran tetap untuk waktu simulasi yang berbeda, distribusi temperatur cenderung seragam. Sedangkan pada jam 11:00 dan 13.00 dengan kecepatan rendah menunjukkan peningkatan temperatur di bagian inlet (sebelah utara rumah pengering), namun pada jam 15:00 mengalami peningkatan tempereratur pada bagian keluar rumah pengering (sebelah selatan rumah pengering)</dc:description>
	<dc:description xml:lang="id-ID">Drying of agricultural products, especially coffee beans, is the removal of water from an agricultural product until a moisture content is reached in balance with environmental air or until a moisture content level where fungi, insects and destructive enzymes can no longer be active. Utilization of solar energy using ultra violet (UV) plastic is also an alternative to overcome the constraints of drying with direct sunlight which is common in society, such as low capacity and requires a long time. By using computational fluid dynamics (CFD) simulations in this study to determine the temperature distribution and flow velocity in the coffee dryer house. From the results of CFD simulations and experiments with flow rates of 0.1 m / s, 0.5 m / s and 1.36 m / s, both without load and with drying load, there are differences in temperature where at speeds of 0.1 m / s and 0 , 5 m / s the mean temperature of the CFD simulation results with the turbulent flow model is lower than the experimental results, while at a speed of 1.36 m / s it is relatively close to the experimental results. From the results of the analysis of the air temperature distribution in the drying house shows that at a constant flow rate for different simulation times, the temperature distribution tends to be uniform. Meanwhile, at 11:00 and 13:00 with low speed shows an increase in temperature at the inlet (north of the dryer house), but at 15:00 there is an increase in temperature at the exit of the dryer house (south of the dryer house).</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4100</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4100</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 11-20</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 11-20</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4100/2573</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/4185</identifier>
				<datestamp>2021-06-02T12:04:42Z</datestamp>
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	<dc:title xml:lang="id-ID">Desain Dan Analisis Struktur Rangka Motorcycle Lift Menggunakan Perangkat Lunak Solidworks</dc:title>
	<dc:creator>Boimau, Kristomus</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:creator>Seranian, Valerius G.</dc:creator>
	<dc:description xml:lang="en-US">Structural analysis is the science of determining the effects of loads on physical structures and their components. Structural analysis combines the fields of engineering mechanics, materials engineering, and engineering mathematics to calculate deformation of structures, internal forces, stresses, bearing reactions, accelerations, and stability. The designer chooses solidwork software for design and analysis because this software can properly simulate the design and calculation of forces on machine tools and elements. Solidwork contains a collection of simulation programs that are easy to use and can be used to create part programs and material selection used for mechanical analysis at work in order to obtain stress, displacement and safety factors (factory safety). The designed motorcycle lift features a chrome stainless steel frame with a control system, with main dimensions 1800 mm length, 700 mm width and 200 mm height at minimum position, 200 kg weight and 855 mm maximum height reach. Based on the identification using REBA in the mechanical posture after the design, it was found that the risk level decreased compared to before the design, from a high risk level to a low risk level. The results of the mechanical evaluation of the use of the designed motorcycle lift, there are several things that have become shortcomings of this design, among others, in terms of the speed of time in raising the position of the motorbike and the boot of the motorcycle lift which is still too heavy.</dc:description>
	<dc:description xml:lang="id-ID">Analisis struktur adalah ilmu yang menentukan pengaruh beban terhadap struktur fisik dan komponennya. Analisis struktural menggabungkan bidang mekanika teknik, teknik material, dan matematika teknik untuk menghitung deformasi struktur, gaya internal, tegangan, reaksi bantalan, percepatan, dan stabilitas. Perancang memilih perangkat lunak solidworks untuk desain dan analisis karena perangkat lunak ini dapat mensimulasikan desain dan kalkulasi gaya pada peralatan dan elemen mesin dengan baik. Solidworks berisi kumpulan program simulasi yang mudah digunakan dan dapat digunakan untuk membuat program part dan pemilihan material yang digunakan untuk analisa mekanik di tempat kerja guna mendapatkan faktor stress, displacement dan safety (keselamatan pabrik). Motorcycle lift yang dirancang memiliki rangka baja tahan karat krom dengan sistem kontrol, dengan dimensi utama panjang 1800 mm, lebar 700 mm dan tinggi 200 mm pada posisi minimum, berat 200 kg, dan tinggi maksimum jangkauan 855 mm. Berdasarkan hasil identifikasi menggunakan REBA pada postur mekanis setelah desain diketahui bahwa tingkat risiko mengalami penurunan dibandingkan sebelum desain, dari tingkat risiko tinggi ke tingkat risiko rendah. Hasil evaluasi mekanik terhadap penggunaan rancangan motorcycle lift terdapat beberapa hal yang menjadi kekurangan dari perancangan ini antara lain dari segi kecepatan waktu dalam menaikkan posisi sepeda motor dan booting yang masih terlalu berat.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4185</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4185</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 21-24</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 21-24</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4185/Kristomus%20Boimau%2C%20Matheus%20M.%20Dwinanto%2C%20dan%20Valerius%20G.%20Seranian</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/4186</identifier>
				<datestamp>2021-06-02T12:04:42Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Perancangan Rumah Pengering Biji Kopi Menggunakan Plastik Ultra Violet (UV Solar Dryer) Dengan Mekanisme Konveksi Alamiah</dc:title>
	<dc:creator>Hudin, Thomas J.</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Nurhayati, Nurhayati</dc:creator>
	<dc:description xml:lang="id-ID">Now a days there are quite a lot of developed mechanical dryers (ERK) that use ultra violet plastic (Uv Solar Dryer) to replace the direct drying method when the weather is not supportive. UV Solar Dryer or also known as drying method using the greenhouse effect is a drying method that utilizes solar energy as the main source of heat energy for drying. The problem that will be focused in this research is to design a type of drying house (ERK) using ultra violet plastic with a natural convection mechanism which results in drying efficiency values of coffee beans ranging from 5-10%/hour. Based on the assumption that the initial moisture content of the coffee beans before drying is 60% and after going through the drying process for 16 hours, where per day the drying is carried out for 4 hours starting at 11.00 and ending at 15.00. The final moisture content of coffee beans obtained ranged from 11-12%. The drying rate obtained is 3.06% bk/hour (the level of water content evaporated for one hour of drying) where for each variation of air velocity the level of water content evaporated is the same. The highest drying efficiency obtained in this research is based on each variation of air velocity with an initial mass of 45.60 kg of material, namely at an air velocity of 0.1 m/s of 10.96%/hour occurred at 14.00, at an air velocity of 0.2 m/s at 11.53%/hour occurred at 14.00 and at air velocity of 0.3 m/s at 11.91%/hour occurred at 14.00.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4186</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4186</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 25-39</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 25-39</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4186/2604</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/4187</identifier>
				<datestamp>2021-06-02T12:04:42Z</datestamp>
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	<dc:title xml:lang="id-ID">Pengaruh Jumlah Sirip Heatsink Terhadap Distribusi Temperatur Pada Alat Penghasil Air Dari Udara Atmosfir</dc:title>
	<dc:creator>Tarigan, Ben</dc:creator>
	<dc:creator>Jafrim, Muhamad</dc:creator>
	<dc:creator>Ndollu, Sadrak</dc:creator>
	<dc:description xml:lang="id-ID">Water is a natural resource that is absolutely necessary for human life and in an environmental systems, water is an element of the environment. Water demand is the amount of water needed for household, industrial, urban flushing and others. One of the water-producing systems that is being developed at present is the technology of producing water from the atmosphere. This technology is desirable to condense water vapor. The amount of condensed water is proportional to the amount of heat transferred, which is related to the thickness of the layer and the temperature difference between the steam and the surface. The purpose of this study was to determine the effect of the number of heat sink fins on the temperature in the box in a water-generating technology device from atmospheric air. Variation of heat sink fins, namely 4 fins, 6 fins, 8 fins with an angle of 750. The test results show that the number of heat sink fins has an effect on the temperature distribution of each test point in the space of atmospheric water producing technology.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4187</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4187</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 40-49</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 40-49</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4187/2630</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/4295</identifier>
				<datestamp>2021-06-02T12:04:42Z</datestamp>
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			</header>
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	<dc:title xml:lang="id-ID">Pengujian Performa Pompa Air DAB Tipe DB-125B Sebagai Turbin</dc:title>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Gusnawati, Gusnawati</dc:creator>
	<dc:creator>Logo, Phillips G. Taka</dc:creator>
	<dc:description xml:lang="id-ID">A centrifugal pump is a pump that moves fluid by utilizing the centrifugal force generated by the rotation of the impeller. All rotodynamic pumps from radial flow type to axial flow can function as turbines. The research was conducted through experiments on the pump that functions as a turbine in this study is a regenerative pump or peripheral pump, namely water pump DAB type DB-125B. Peripheral pump is a centrifugal pump whose impeller has radial spoons in a total of 41 spoons. The results showed the best performance or performance of PAT regenerative pump system or peripheral pump, namely water pump DAB type DB-125B as a hydro power plant with flow discharge variation of 35 ltr/min, 40 ltr/min, and 45 ltr/min at constant head (8 m) is with a maximum efficiency of 15.81% at a flow discharge of 40 ltr/min and shaft rotation of 850.3 rpm. Maximum PAT output power also occurs at a flow discharge of 40 ltr/min with a turbine rotation of 985.1 rpm of 5.849 W. The addition of water power can directly increase the rotation of the PAT shaft, as well as the addition of flow discharge at a constant head (8 m), rotation the turbine rotor is also increased. Whereas the addition of flow discharge with a constant head, the output power and maximum PAT efficiency tend to occur at high rotation.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4295</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4295</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 50-60</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 50-60</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4295/2642</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/4345</identifier>
				<datestamp>2021-06-02T12:04:42Z</datestamp>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Analisis Sistem Pencegahan dan Penanggulangan Bahaya Kebakaran di Gedung Rektorat Universitas Nusa Cendana</dc:title>
	<dc:creator>Laning, JonsJonson H.</dc:creator>
	<dc:creator>Rarindo, Hari</dc:creator>
	<dc:creator>Adoe, Dominggus G.</dc:creator>
	<dc:creator>Selan, Rima N.</dc:creator>
	<dc:creator>Adoe, Adi Y.</dc:creator>
	<dc:description xml:lang="id-ID">To build a building, it is very important to pay attention to occupational health and safety (K3) for its residents. At the Nusa Cendana University Rectorate Building, the availability of a fire prevention and control system is very important. The purpose of this study was to analyze the extent of the fire prevention and control system in the Rectorate Building, University of Nusa Cendana. The fire hazard prevention systems analyzed are Fire Alarm, Fire Detector, Light Fire Extinguisher (APAR), Automatic Sprinklers, Fire Hydrants, Upright Pipe Systems, Water Supply Systems, Fire Pumps. The fire hazard management systems analyzed are the Fire Management Organization, Fire Emergency Action Procedures, and Fire Emergency Action Education and Training. The regulations that are used as a comparison with conditions in the field are the Minister of Public Works Regulation Number 26 / PRT / M / 2008, Number 20 / PRT / M / 2009, and NFPA (National Fire Protection Association) 10, 13, 14, 72, 101, 251. Based on the results of the analysis of the fire prevention and control system at the Rectorate Building of the University of Nusa Cendana, it is known that there are systems that are by accordance with the applicable regulations and there are also systems that are not by accordance with the applicable regulations. For this reason, the management of the Rectorate Building at the University of Nusa Cendana is advised to improve the existing fire prevention and control system so that it is by accordance with applicable regulations</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4345</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4345</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 61-70</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 61-70</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4345/2655</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/4346</identifier>
				<datestamp>2021-06-02T12:04:42Z</datestamp>
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	<dc:title xml:lang="en-US">Analisis Potensi Angin Sebagai Sumber Penggerak Turbin Angin Savonius Di Kabupaten Timor Tengah Selatan (TTS)</dc:title>
	<dc:creator>Naitio, Ironis R.</dc:creator>
	<dc:creator>Sanusi, Arifin</dc:creator>
	<dc:creator>Nurhayati, Nurhayati</dc:creator>
	<dc:description xml:lang="en-US">Wind energy is an energy that cannot be separated from our daily lives. Wind is one of the renewable energies that will never run out. In addition, wind energy also does not produce pollution that can disturb the environment. This makes wind energy as one of the alternative energy that has great potential, so it is necessary to conduct research for wider utilization and in long -term use. Savonius wind turbine is one of the vertical shaft turbines (VAWT) where the savonius wind turbine has a main rotor that rotates vertically, and can utilize wind from all directions, and can work/rotate at low wind speeds. The method of data analysis that I can use in this research is to take data directly and simultaneously on wind speed, turbine rotation, and others. The results of data analysis obtained: (1) the highest average wind speed for 1 month is 5.62 m/s with a turbine rotation of 845.36 rpm (2) The highest turbine power is 104 W (3) Turbine effective power is 28.08 W (4) and The highest average efficiency is 23.34 % and the lowest is 8.86 %.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4346</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4346</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 71-75</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 71-75</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4346/2656</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/4364</identifier>
				<datestamp>2021-06-05T09:56:12Z</datestamp>
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	<dc:title xml:lang="id-ID">Rancang Bangun Mesin Pemarut Batang Putak</dc:title>
	<dc:creator>Bifel, Vinsen Yuminto</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Pah, Jack C.A.</dc:creator>
	<dc:description xml:lang="id-ID">Putak is the name of a local feed on the island of Timor, East Nusa Tenggara which is obtained from the trunk of the gewang tree (Coypha gebanga). Most of the putak processing by the people of Timor Island is very low and also limited so that putak productivity is very low because people still do it traditionally and only use it as food. Therefore, this study aims to design a putak grater for animal feed. The VDI 2221 method is a design method that uses a systematic approach to design for engineering systems and engineering products. The effective capacity of the tool is obtained by grating / repeating 3 times, then the average effective capacity of the tool is calculated. In testing the putak sticks used to produce a grated mass volume of 3,5 kg, and a tool capacity of 70 kg/hour. The results showed that the effective capacity of the putak grating machine was 70 kg/hour.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4364</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4364</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 76-82</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 76-82</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4364/2660</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/4756</identifier>
				<datestamp>2021-07-11T16:36:26Z</datestamp>
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	<dc:title xml:lang="id-ID">Karakteristik Tabung Udara Pada Pompa Hidram</dc:title>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:description xml:lang="id-ID">The purpose of this paper is to provide the fact that the air tube of a hydram pump. The method used in making this paper is to collect several published research articles on the effect of using an air tube on a hydram pump. The data obtained were analyzed to get air tube water on the hydram pump. The results of the analysis show that the use of an air tube has a good effect on improving the performance of the hydram pump. The greater the volume of the air tube, the higher the discharge air and the higher the pump efficiency.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2018-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4756</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v5i1.4756</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 5 No 1 (2018): April 2018; 01-08</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 5 No 1 (2018): April 2018; 01-08</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v5i1</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4756/2771</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/4757</identifier>
				<datestamp>2021-07-11T16:37:52Z</datestamp>
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			</header>
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	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="id-ID">Analisis Kebutuhan Energi di Universitas Nusa Cendana Tahun 2018-2050 Menggunakan Perangkat Lunak Long-range Energy Alternative Planning system (LEAP)</dc:title>
	<dc:creator>Masus, Yorim A.</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:creator>Bale, Jefri S.</dc:creator>
	<dc:description xml:lang="id-ID">Energy management in an agency, especially at the University of Nusa Cendana, is still very high dependence on fossil energy. The growth in consumption of electricity and fuel oil continues to increase by an average of 20% per year. Changes in energy consumption are increasing due to changes in power tariffs from 13.2 killovolt amperes (kVa) to 650 killovolt amperes (kVa). In projecting energy demand, the author uses LEAP Software (Long-range Energy Alternative Planning system) version 2017.011.0 from 2018-2050. The purpose of this study was to analyze and determine the treatment of the dependent and independent variables on the magnitude of the results of energy needs at the University of Nusa Cendana. The projection results obtained from the total final energy demand of the Undana sector which is estimated to reach 1,685 kilowatts by 2050 or equivalent to 1.7 megawatts with an average growth of 30%. Meanwhile, for the transportation sector, the final energy demand for fuel (diesel and premium) for vehicle operations is estimated to reach 150.8 thousand barrels by 2050 with an average growth of 38%. The elasticity of energy used shows an increase of 1% after 2018. Energy conservation in the user sector shows potential efficiency of 716.7 kilowatts or equivalent to 0.717 megawatts in 2050, with an average growth of 37% against the Business As Ussual (BAU) scenario.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2019-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4757</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v6i01.4757</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 6 No 01 (2019): April 2019; 01-12</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 6 No 01 (2019): April 2019; 01-12</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v6i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4757/2772</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/4758</identifier>
				<datestamp>2021-07-11T16:48:27Z</datestamp>
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	<dc:title xml:lang="id-ID">Analisis Pengaruh Panjang Sirip Heatsink Terhadap Produksi Air Kondensasi pada Alat Pengahasil Air Atmosfir</dc:title>
	<dc:creator>Lodoh, Erkes</dc:creator>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:description xml:lang="id-ID">This study aims to determine the effect of heat sink fin length oriented at 700 on the production of atmospheric air condensation water. The method used is an experimental method of 3 converters with variations in the length of the heat sink; 8 cm, 10 cm and 12 cm. The three sizes of these heat sinks are that the length of the heat sink affects the distribution of environmental temperature, the temperature on the cold side of the heat sink, the temperature on the hot side of the heat sink, the temperature in the condensing chamber and the volume of condensed water. From the third study, the best size was the length of the 12 cm heat sink with a water production of 26.9 ml/24h.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4758</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4758</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 83-90</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 83-90</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4758/2773</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/4966</identifier>
				<datestamp>2021-08-08T04:59:02Z</datestamp>
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	<dc:title xml:lang="id-ID">Studi Kinerja Teoritis Dan Konsumsi Energi Pengkondisian Udara Menggunakan R22 Dan R290</dc:title>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:creator>Bunganaen, Wenseslaus</dc:creator>
	<dc:creator>Syaifullah, Indra H.</dc:creator>
	<dc:description xml:lang="id-ID">The use of more environmentally friendly hydrocarbon refrigerants in air conditioning systems has become a demand and a central issue in the future. This article presents the simulation results of the comparison of the use of R22 and R290 on the performance and energy consumption per year of air conditioning systems. The thermodynamic analysis of the system using the two refrigerants used CoolPack software version 1.50 at various evaporation temperatures, with the condensation temperature held constant. The important quantities analyzed are refrigerant mass flow rate, compressor pressure ratio, and refrigerant gas temperature leaving the compressor, heat release in the condenser, compressor power, performance coefficient, and energy consumption. The results of this study indicate that the performance and energy consumption of systems that use the two types of refrigerants basically have no significant difference. However, the R290 has a much lower compressor exit temperature which results in a longer compressor life. In addition, R290 is more environmentally friendly than R22, so the use of R290 is highly recommended.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4966</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.4966</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021; 91-98</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021; 91-98</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/4966/2884</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/5654</identifier>
				<datestamp>2021-11-24T04:58:04Z</datestamp>
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			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
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	<dc:title xml:lang="id-ID">Pengaruh Resonansi Terhadap Perubahan Efisiensi Perangkat  Oscillating Water Column (OWC)</dc:title>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:description xml:lang="en-US">Oscillating water column (OWC) is the most promising wave energy converter to be applied because of its simple mechanical structure. To achieve maximum energy conversion efficiency, the device structure's incident wave frequency and natural frequency must be resonant. This paper discusses several factors that cause resonance, such as the incident wave period and the comparison of the length of the submerged front wall with the size of the inlet opening (a/c) and their effect on the efficiency of the OWC. The test results explain a resonance condition in which the a/c ratio of 0.67 in the wave period of 1.3 s produces a maximum efficiency of 24.13%.</dc:description>
	<dc:description xml:lang="id-ID">Oscillating water column (OWC) merupakan jenis konverter energi gelombang yang paling menjanjikan untuk diaplikasikan karena struktur mekaniknya yang sederhana. Untuk menghasilkan efisiensi konversi energi yang maksimal frekuensi gelombang insiden dan frekuensi alamiah struktur perangkat harus beresonansi. Dalam tulisan ini dibahas beberapa faktor penyebab terjadinya resonansi seperti periode gelombang insiden dan perbandingan panjang dinding depan yang terendam dengan panjang bukaan saluran masuk (a/c) dan efeknya terhadap efisiensi OWC. Hasil pengujian menjelaskan bahwa terjadi kondisi resonansi yang pada rasio perbandingan a/c sebesar 0,67 pada periode gelombang 1,3 s menghasilkan efisiensi maksimum sebesar &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;24,13 %</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-04-03</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/99-106</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i01.5654</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 01 (2021): April 2021</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 01 (2021): April 2021</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/99-106/99-106</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/5940</identifier>
				<datestamp>2021-12-17T11:46:41Z</datestamp>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Waktu Gesek Terhadap Kekuatan Tarik Sambungan AA6061-Baja Karbon Pada Pengelasan Gesek Continuous Drive</dc:title>
	<dc:creator>Pah, Jack C.A.</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Adoe, Dominggus</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:description xml:lang="id-ID">The objective of this research was to get the effect of friction time on the tensile strength of the joining of aluminum alloy AA6061 and carbon steel, with continuous drive friction welding process. Variations of friction time of this research were 5 seconds, 7 seconds, 9 seconds, and 11 seconds. Other friction welding variables were friction pressure 24 MPa, forging pressure 79 MPa, forging time 60 seconds, and friction rotation speed 1600 rpm. The independent variable was the ultimate tensile strength of the welded joint. The results showed that the relationship between friction time and ultimate tensile strength is not linear, with the increase in friction time. The increasing of friction time, caused the ultimate tensile strength increase to a maximum value and then the ultimate tensile strength of the joint will decrease sharply. The greatest ultimate tensile strength is obtained at a friction time 9 seconds, with ultimate tensile strength 111.89 MPa</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5940</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i02.5940</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 02 (2021): Oktober 2021; 1-6</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 02 (2021): Oktober 2021; 1-6</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5940/3275</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/5941</identifier>
				<datestamp>2021-12-17T11:46:41Z</datestamp>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Pengujian Rumah Pengering Daun Kelor Dengan Efek Rumah Kaca (Solar Dryer) Melalui Mekanisme Konveksi Alamiah</dc:title>
	<dc:creator>Piamat, Aloysius V.P.</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:description xml:lang="id-ID">This research was conducted by experimental study of moringa leaf drying process using ultra violet plastic dryer house (UV solar dryer) through natural convection drying mechanism. The results showed that the final water content of moringa leaves after drying for two days (8 hours) was 54.88 %bb with a total drying rate of 0.417 kg/hour from the assumed initial water content of 80 %bb. While the average drying efficiency of 3.49 % with specific energy consumption (KES) is quite high, which is 127180.77 kJ/kg. The highest specific energy consumption (KES) occurred on the 2nd day test at 200056.37 kJ/kg with the lowest efficiency of 2.154 %, while the lowest KES on the 1st day test was 54305,17 kJ/kg with the highest efficiency of 4.83 %. This phenomenon is very clear the influence of changing environmental weather on the drying process in the drying house. Environmental weather is very influential on the process of drying moringa leaves with a natural convection mechanism using ERK type dryer. Cloudy weather with high humidity will increase the humidity in the dryer house through the water vapor content in the air that enters through the air ducts</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5941</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i02.5941</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 02 (2021): Oktober 2021; 7-22</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 02 (2021): Oktober 2021; 7-22</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5941/3276</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/5942</identifier>
				<datestamp>2021-12-17T11:46:41Z</datestamp>
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			</header>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Analisis Pengaruh Perlakuan Alkali Terhadap Wettability Serat Tunggal Widuri</dc:title>
	<dc:creator>Adoe, Dominggus</dc:creator>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:creator>Sanak, Beni</dc:creator>
	<dc:description xml:lang="id-ID">Along with its development, composites do not only use synthetic fibers, but there are already composite reinforcing materials made from natural fibers. The advantages of natural fiber as a reinforcing material for composite materials are: the ratio between strength and density is quite high, corrosion resistance, low cost and easy manufacturing process. The use of natural fibers as reinforcement for polymer materials provides opportunities for some natural fibers to be used as reinforcement for polymer composites, one of which is thistle fiber. The treatment used was alkaline treatment (NaOH) with percentages of 2%, 3%, 4%, 5%, 6%, and 7%, respectively, and the soaking time of 30, 60, 90, 120 minutes, and fiber. Widuri bark without treatment as a comparison. The purpose of this study was to determine the effect of the concentration of alkaline solution and the duration of immersion on the wettability of single widuri fibers. Single fiber testing refers to ASTM D3379 standard. From the results of the fiber contact angle test with 6% NaOH treatment for 120 minutes with a cos price of 0.906725322 with a droplet geometry that tends to be barrel. Meanwhile, fiber treated with 3% NaOH for 60 minutes had the lowest cos value of 0.472037963 with a droplet geometry that tends to be clam-shell</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5942</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i02.5942</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 02 (2021): Oktober 2021; 23-28</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 02 (2021): Oktober 2021; 23-28</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5942/3277</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/5943</identifier>
				<datestamp>2021-12-17T11:46:41Z</datestamp>
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	<dc:title xml:lang="id-ID">Analisis Pengaruh Variasi Tekanan Dan Dimensi Briket Sekam Padi Terhadap Temperatur Dan Lama Nyala Api</dc:title>
	<dc:creator>Tana, Melvani E. D.</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:description xml:lang="id-ID">This research was conducted to determine the effect of variations in pressure and dimensions of rice husk briquettes on the temperature and duration of the flame. The mashed husk charcoal is mixed with 50 ml of water, 160 grams of starch and 450 grams of rice husk charcoal, stirred until evenly distributed. The process of molding charcoal briquettes that have been mixed and then printed, uses molds with diameters of 1 in, 1.5 in and 2 in, with different briquette pressure variations, pressure variations using sizes 0.1 MPa, 0.2 MPa, 0, 3 MPa, 0.4 MPa. The briquettes are then dried in the sun for three days to dry. From the research, it was found that the variation of pressing pressure affects the characteristics of the flame and the dimensions of the burning of rice husk briquettes. The highest temperature was recorded at 749 0C at 1.5 In briquette size and the pressing pressure was 0.2 MPa. At this size, the longest flame is 18 minutes</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5943</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i02.5943</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 02 (2021): Oktober 2021; 29-34</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 02 (2021): Oktober 2021; 29-34</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5943/3278</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/5944</identifier>
				<datestamp>2021-12-17T11:46:41Z</datestamp>
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	<dc:title xml:lang="id-ID">Modifikasi Alat Pemarut Kelapa Sistem Mekanis Dengan Mata Pisau Setengah Lingkaran</dc:title>
	<dc:creator>Manane, Marten E.</dc:creator>
	<dc:creator>Mangesa, Daud P.</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:description xml:lang="id-ID">Today's increasingly rapid technology encourages people to continue to innovate in creating facilities and infrastructure to improve work efficiency and effectiveness. The aim of this research is to modify the mechanical system coconut grater with a semi-circular blade equipped with a coconut shell clamp. The manufacture of this coconut grater tool with a semi-circular blade uses the standard VDI 2221 design method. The design and technical drawings of the tool use the Autodesk Inventor software 2008 and the design is then realized according to the technical drawings. The result of this research is a coconut grater with a driving motor power of 0.2 kW. In this study, this coconut grater tool was used in grating coconut whether it worked according to the design drawing or not. The end result of making this tool is that it can be successfully made and can be used</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5944</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i02.5944</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 02 (2021): Oktober 2021; 35-40</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 02 (2021): Oktober 2021; 35-40</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5944/3279</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/5945</identifier>
				<datestamp>2021-12-17T11:46:41Z</datestamp>
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			</header>
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	<dc:title xml:lang="id-ID">Karakteristik Pembakaran Premixed Minyak Fame (Fatty Acid Methyl Ester)</dc:title>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Adoe, Dominggus</dc:creator>
	<dc:creator>Weo, Reinaldy</dc:creator>
	<dc:description xml:lang="id-ID">Advances in technology and the times have caused the human need for energy to increase. This condition has an impact on the availability of fuel oil which is decreasing and will run out. To anticipate and prevent these problems, new alternative energy sources are needed as a substitute for energy sources that cannot be replaced. One alternative energy is FAME (fatty acid methyl ester) oil. FAME is a type of fatty acid ester derived by transesterification of fats with methanol. This research was conducted to determine the combustion characteristics of premixed FAME oil in the form of flame temperature and combustion speed. The results of the study, the greater the equivalence ratio, the smaller the flame temperature and combustion speed. This is because less air is available to burn the fuel. On the other hand, the smaller the equivalence ratio, the higher the flame temperature and combustion speed. This is because more and more air is available to burn the fuel. And at the time of equivalence ratio = 0.96, combustion is rich in air and close to the stoichiometric combustion. The angle of fire obtained is directly proportional to the speed of combustion.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5945</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i02.5945</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 02 (2021): Oktober 2021; 41-45</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 02 (2021): Oktober 2021; 41-45</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/5945/3280</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/6011</identifier>
				<datestamp>2021-12-18T15:05:37Z</datestamp>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">Desain dan Analisis Barrier Gate Otomatis Berbahan Komposit Serat Glass dan Serat Daun Gewang (Hibrid Polyester) pada Bagian Palang</dc:title>
	<dc:creator>Serfano, Afrianus</dc:creator>
	<dc:creator>Maliwemu, Erich U.K.</dc:creator>
	<dc:creator>Limbong, Ishak S.</dc:creator>
	<dc:description xml:lang="en-US">Barrier Gate is a stopping mechanism that has a function for the security of a place such as the entrance to an office or agency. The design and analysis of the construction of the automatic barrier gate made of glass fiber composite and leaf gewang fiber (hybrid polyester) aims to limit crowds so that safety and comfort are always maintained. This test uses software solidwork 2015. The results of the analysis of three variations of the crossbar components are, variation 1 with a maximum stress of 12.255 Mpa, variation 2 with a maximum stress of 10.217 Mpa and variation 3 with a maximum stress of 37.359 Mpa. Of the 3 variants, the one that produces the better stress is variant 3 with a length of 250 cm width 3 cm and a thickness of 4 cm which gets the largest with a value of 37.359 MPa. Static analysis of frame components with a length of 40 cm width 40 cm and a height of 100 cm, resulted in a maximum stress of 7.499 MPa and a maximum displacement of 0.134 mm.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6011</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i02.6011</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 02 (2021): Oktober 2021; 46-58</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 02 (2021): Oktober 2021; 46-58</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i02</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6011/3408</dc:relation>
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		<record>
			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/6075</identifier>
				<datestamp>2024-02-01T06:48:47Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
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	<dc:title xml:lang="en-US">Design of a Roll Press Tool for Making Corn Chips with a Capacity of 150 Kg/H Using Solidworks Software</dc:title>
	<dc:title xml:lang="id-ID">Perancangan Alat Roll Press Untuk Pembuatan Emping Jagung Kapasitas 150 Kg/Jam Menggunakan Software Solidworks</dc:title>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:creator>Odjan, Benediktus Sori</dc:creator>
	<dc:creator>Bunganaen, Wenseslaus</dc:creator>
	<dc:description xml:lang="id-ID">The development of machine technology that makes it easier for humans to do things more easily and quickly, encourages the world of small and medium-sized corn chip craftsmen to develop home businesses that produce corn chips using a corn chipping machine. The production process with the help of machines can accelerate human performance in carrying out activities. In this design, we will redesign the corn chip machine which already uses a motor to drive a flattened roll that can be adjusted for slack. In this design, the mechanical system of the corn chips roll press machine, the source of rotation is the motor gear that drives the belt and pulley which is connected directly to the reducer which then moves the flattened roll with a chain and sprocket as an introduction. By utilizing the rotation of the gear motor, it can move the flattening roll which will later function to take corn kernels from the inlet funnel. The constant rotation of the motor that drives the flattening roll can work to take corn kernels continuously, thus providing convenience in the process of flattening corn seeds</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6075</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.6075</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 110-116</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 110-116</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6075/4108</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/6295</identifier>
				<datestamp>2024-02-01T06:45:43Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">Pengaruh Penggunaan Bahan Bakar Biodisel Berbasis Biji Buah Nyamplung (Calophyllum Inophyllum) Terhadap Emisi Gas Buang Mesin Diesel.</dc:title>
	<dc:creator>Persulesy, Pieter Y</dc:creator>
	<dc:creator>K, Basri</dc:creator>
	<dc:creator>Suprapto, Edy</dc:creator>
	<dc:description xml:lang="en-US">One of the energy sources used as a substitute for diesel is biodiesel, which is an energy source made from plants and animals. One of the plant species that can be developed for biodiesel in Indonesia is the Nyamplung tree (Calophyllum inophyllum). The purpose of this study was to determine the effect of using biodiesel fuel based on nyamplung fruit seed oil (Calophyllum Inophyllum) on exhaust gas emissions of CO, CO2, NOx, O2, and diesel engine opacity. The study used a non-factorial Randomized Block Design (RAK) basic pattern which was repeated 3 times, including: X1 : Pure Diesel (100%), X2 : Mixture of Diesel and 50% Biodiesel (B50), X3 : 100% Biodiesel (B100), Y : Exhaust Emissions (CO, CO2, NOx, O2 and Opacity). From the analysis of variance, it was found that the use of nyamplung seed biodiesel fuel on exhaust gas emissions of CO, CO2, NOx, O2, and Opacity had a significant effect on the 1% and 5% levels in the treatment and had no significant effect on the test group. Then it can be said that the use of biodiesel can reduce exhaust emissions.</dc:description>
	<dc:description xml:lang="id-ID">Tujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan bahan bakar biodiesel berbasis minyak biji buah nyamplung (Calophyllum Inophyllum) terhadap emisi gas buang CO, CO2, NOx, O2, serta Opasitas mesin diesel. Dengan cara membagikan tiga sempel bahan bakar pertama solar murni diuji kadar emisi gas buang menggunakan alat uji emisi (Gas Analyzer), kemudian dilanjutkan dengan bahan bakar biodiesel murni dan, tahap terakhir dilakukan mix atau campuran bahan bakar solar 50% dan biodiesel nyamplung 50% pada putaran 1800 rpm. Lalu Pengamatan dilakuan pada tiap kelompok pengujian dengan mengukur emisi gas buang yang dihasilkan menggunakan alat gas detektor/ gas analyser. Penelitian menggunakan pola dasar Rancangan Acak Kelompok (RAK) non faktorial yang diulang 3 kali, meliputi: X1 : Solar Murni (100%), X2 : Campuran Solar dan Biodiesel 50% (B50), X3 : Biodiesel 100% (B100), Y : Emisi Gas Buang (CO, CO2, NOx,&amp;nbsp; O2 dan Opasitas). Dari hasil analisis sidik ragam didapatkan bahwa penggunaan bahan bakar biodiesel biji buah nyamplung terhadap emisi gas buang CO, CO2, NOx, O2, serta Opasitas berpengaruh nyata di taraf 1% dan 5% pada perlakuan dan tidak berpengaruh nyata pada kelompok uji. Maka dapat disimpulkan bahwa penggunaan biodiesel dapat mereduksi tingkat pencemaran emisi gas buang.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-08-04</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6295</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.6295</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 48-56</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 48-56</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6295/4014</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/6349</identifier>
				<datestamp>2022-01-31T13:47:17Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Studi Karakteristik Aliran di Jaringan Perpipaan Menggunakan Perangkat Lunak Epanet 2.0 (Studi Kasus di Laboratorium Teknik Mesin)</dc:title>
	<dc:creator>Rifai, Kurniawan</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:creator>Bunganaen, Wenseslaus</dc:creator>
	<dc:description xml:lang="id-ID">Water is a basic human need both for the needs of daily life, starting from the need for drinking, cooking, and sanitation purposes. For this reason, it is necessary to plan and analyze the piping network in a building using either a gravity system or a pumping system. The mechanical engineering laboratory is one of the buildings within the Mechanical Engineering Study Program, Faculty of Science and Engineering, Nusa Cendana University which already has a piping network for distribution of clean water to the bathroom. However, until now this clean water supply has not utilized the reservoir with the existing tower near the laboratory. So, it takes software that can help, to determine the flow characteristics in the pipeline network. The piping network simulation method uses EPANET 2.0. The flow of water in the analyzed piping network is the reservoir to the bathroom. This research was conducted by analyzing the head and pressure in the piping network that will be installed in the Mechanical Engineering Laboratory using EPANET 2.0 software and analyzing losses in the pipeline network based on EPANET 2.0 software. The stability of the distribution of clean water, and the analysis period was carried out for 8 hours (extended period) with the condition of the water flow in each pipe in an open condition</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2021-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6349</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v8i02.6349</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 8 No 02 (2021): Oktober 2021; 59-67</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 8 No 02 (2021): Oktober 2021; 59-67</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v8i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6349/3484</dc:relation>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/6577</identifier>
				<datestamp>2024-02-01T06:48:18Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Desain dan Analisis Konstruksi Mesin Potong Specimen Skala Micro Untuk Pengujian Mekanik</dc:title>
	<dc:creator>Limbong, Ishak S.</dc:creator>
	<dc:creator>Tualaka, Wiwi Efendi</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:description xml:lang="en-US">Abstract&amp;nbsp;
Specimen cutting is one of the most important and widely used processes in the metal and nonmetal industry. From several existing specimen cutting technologies, mechanical testing in the form of micro cutting was chosen to design and analyze micro-scale specimen cutting machines. Micro cutting specimen is a machine operated in manual or automatic cutting mode, equipped with safety protection function. Design and analysis of micro-scale specimen cutting machines for mechanical testing in the form of micro-cutting using the Solidworks application. There are 3 components analyzed using Solidworks in this study, namely the swing arm, cutting arm and frame components. The results of the stress analysis for the swing arm are 21.797 MPa, the displacement is 2.468 mm and the factor of safety is 2.85. For the cutting arm, the results of the stress analysis are 37,344 MPa, the displacement is 2,296 mm and the factor of safety is 16,613. For the framework, the results of the stress analysis are 2.177 MPa, the results of the displacement analysis are 0.0175 mm and the factor of safety is 12.664.
Keywords : Micro Cutting, Solidworks</dc:description>
	<dc:description xml:lang="id-ID">Abstrak
Pemotongan specimen adalah salah satu proses paling penting dan luas yang digunakan dalam industri logam maupun non logam. Dari beberapa teknologi pemotongan specimen yang ada, dipilih pengujian mekanik berbentuk micro cutting untuk mendesain dan menganalisis mesin potong specimen skala mikro. Micro cutting specimen adalah mesin yang dioperasikan dalam mode pemotongan manual atau otomatis, dilengkapi dengan fungsi perlindungan keselamatan. Desain dan analisis mesin pemotong specimen skala mikro untuk pengujian mekanik yang berbentuk micro cutting menggunakan aplikasi Solidworks. Ada 3 komponen yang dianalisis menggunakan Solidworks dalam penelitian ini yaitu komponen lengan ayun, lengan potong dan rangka. Hasil analisis tegangan untuk lengan ayun 21,797 Mpa, displacement 2,468 mm dan factor of safety 2,85. Untuk lengan potong hasil analisis tegangan 37,344 Mpa, displacement 2,296 mm dan factor of safety 16,613. Untuk rangka hasil analisis tegangan 2,177 Mpa, hasil analisis displacement 0,0175 mm dan factor of safety 12,664.
Kata Kunci: Micro Cutting, Solidworks
&amp;nbsp;
&amp;nbsp;</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6577</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.6577</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 117-122</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 117-122</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6577/4151</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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		<record>
			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/6972</identifier>
				<datestamp>2024-02-01T06:44:17Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">Rancang Bangun Mesin Pencetak Pakan Ikan Menggunakan Metode VDI 2221</dc:title>
	<dc:creator>rae, matias</dc:creator>
	<dc:creator>Mangesa, Duad Pulo</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:description xml:lang="en-US">ABSTRACT
A reality for today's business world, that many small and medium industries and households are trying to build themselves to meet the growing need for fish feed. Based on this, it is appropriate that the production equipment owned must be optimized to support the effectiveness and efficiency of the fish feed production process. The VDI 2221 method uses a systematic approach to design for engineering systems and engineering products. This VDI 2221 method makes it easier for designers to make a product so that product design can be achieved. The author has a design to make a fish feed printing machine in the hope that it can be used as an alternative to produce products faster and more efficiently. The results of the design using the VDI 2221 method of fish feed printing machine are, using a motor power of 1 HP = 750 watts with a tool capacity of 42 kg/hour.&amp;nbsp;
Keywords: design, VDI 2221 method, feed printing device.
&amp;nbsp;&amp;nbsp;</dc:description>
	<dc:description xml:lang="id-ID">ABSTRAK
Sebuah realitas bagi dunia usaha saat ini, bahwa banyak industri kecil menengah dan rumah tangga berusaha membangun diri untuk memenuhi kebutuhan akan pakan ikan yang semakin meningkat. Berdasarkan hal tersebut sudah sepantasnya bahwa alat-alat produksi yang dimiliki harus dioptimalkan untuk mendukung efektifitas dan efisiensi dari proses produksi pakan ikan. Metode VDI 2221 menggunakan pendekatan sistematik terhadap desain untuk sistem teknik dan produk teknik. Metode VDI 2221 ini mempermudah perancang untuk membuat suatu produk sehingga perancangan produk dapat tercapai. Penulis mempunyai rancangan untuk membuat mesin pencetak pakan ikan dengan harapan agar dapat dijadikan sebagai alternative untuk menghasilkan produk secara lebih cepat dan lebih efisien. Hasil rancangan menggunakan metode VDI 2221 mesin pencetak pakan ikan adalah, menggunakan daya motor 1 HP = 750 watt dengan kapasitas alat sebesar 42 kg/jam.
&amp;nbsp;
Kata Kunci : perancangan, metode VDI 2221, alat pencetak pakan.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-08-02</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6972</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.6972</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 34-40</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 34-40</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/6972/4019</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
			</metadata>
		</record>
		<record>
			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/7268</identifier>
				<datestamp>2024-02-01T06:34:34Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">Analisis Performa Pompa Air DAB Tipe DB-125b Sebagai Turbin Dengan Variasi Head Dinamik</dc:title>
	<dc:creator>Nabuasa, Meinase K</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Nurhayati, Nurhayati</dc:creator>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:description xml:lang="en-US">The research was conducted through experiments on pumps that functioned as turbines in this study, namely regenerative pumps or peripheral pumps, namely the DAB water pump type DB-125B. Peripheral pump is a centrifugal pump whose impeller has radial blades in bulk of 41 blades. The performance or performance of the PAT system for regenerative pumps or peripheral pumps, namely the DAB type DB-125B water pump as a hydroelectric power plant, was analyzed with variations in flow rates of 35 ltr/min, 40 ltr/min, and 45 ltr/min. The performance or performance of the PAT system of regenerative pumps or peripheral pumps, namely the DAB type DB-125B water pump as a small-scale hydroelectric power plant from experimental results with variations in flow rate shows a maximum shaft power of 5.849 W with an initial discharge at no-load of 40ltr/min. The addition of water power can directly increase the rotation of the PAT shaft, as well as with the addition of the flow rate at the head, the rotation of the turbine rotor also increases. While the addition of the flow rate, the maximum output power and PAT efficiency tend to occur at higher rotations than at low flow rates. The efficiency of PAT in this flow discharge variation reaches its maximum value at turbine rotation of 850.3 rpm of 17.39%, followed by variations of flow rate of 45 ltr/min and 35 ltr/min, each of which is 11.14% at 566.3 rpm and 8.74% at 1440.7 rpm.</dc:description>
	<dc:description xml:lang="id-ID">Penelitian dilakukan melalui eksperimen terhadap pompa yang difungsikan sebagai turbin dalam penelitian ini adalah pompa regeneratif atau peripheral pump, yaitu pompa air DAB tipe DB-125B. Peripheral pump adalah pompa sentrifugal yang impelernya memiliki sudu-sudu radial dalam jumlah banyak 41 sudu. Kinerja atau performa sistem PAT pompa regeneratif atau peripheral pump, yaitu pompa air DAB tipe DB-125B sebagai pembangkit daya tenaga air dianalisis dengan variasi debit aliran 35 ltr/mnt, 40 ltr/mnt, dan 45 ltr/mnt. Kinerja atau performa sistem PAT pompa regeneratif atau peripheral pump, yaitu pompa air DAB tipe DB-125B sebagai pembangkit daya tenaga air skala kecil dari hasil eksperimen dengan variasi debit aliran menunjukkan daya poros maksimum sebesar 5,849 W dengan debit awal &amp;nbsp;saat tanpa beban sebesar 40ltr/mnt. Penambahan daya air secara langsung dapat meningkatkan putaran poros PAT, begitu juga dengan penambahan debit aliran pada head, putaran rotor turbin juga meningkat. Sedangkan penambahan debit aliran maka daya output dan efisiensi PAT maksimum cenderung terjadi pada putaran yang lebih tinggi dari pada debit aliran yang rendah. Efisiensi PAT pada variasi debit aliran ini mencapai nilai maksimum pada putaran turbin 850,3 rpm sebesar 17,39 %, kemudian diikuti oleh variasi debit aliran 45 ltr/mnt dan 35 ltr/mnt, masing-masing sebesar 11,14 % pada putaran 566,3 rpm dan 8,74 % pada putaran 1440,7 rpm.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7268</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.7268</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 1-13</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 1-13</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7268/3729</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/7269</identifier>
				<datestamp>2024-02-01T06:35:26Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
			<metadata>
<oai_dc:dc
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	<dc:title xml:lang="id-ID">Analisa Potensi Gelombang Laut sebagai Sumber Energi Terbarukan Menggunakan Perangkat Oscillating Water Column (OWC) Di Wilayah Perairan Laut Timor</dc:title>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:creator>Mangesa, Daud P.</dc:creator>
	<dc:creator>Boimau, Kristomus</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:creator>Maliwemu, Erich U.K.</dc:creator>
	<dc:creator>Salombe, Mexin</dc:creator>
	<dc:description xml:lang="en-US">An in-depth study is needed on the use of alternative energy to overcome human energy needs. This study aims to analyze the potential of ocean wave energy that can be converted by the &quot;Oscillating Water Column&quot; device on the Kolbano coast as a renewable energy source. Kolbano Beach is located in Kolbano Village, Kolbano District, and TTS Regency (South Central Timor) East Nusa Tenggara Province with an area of​approximately 17 sq km stretch of Kolbano beach area facing the Indian Ocean so that the consistency of the wave height produced is quite large. The wave height is large enough to be used as an alternative power plant. This research was conducted in Kolbano coastal waters, data on wave height and wind speed from BMKG (Metrology, Climatology, and Geophysics Agency) Kupang City in 2019 – 2021m with wave heights ranging from 0.31 to 2.3 m and wind speeds ranging from 1 .05 to 8.48 Watts.</dc:description>
	<dc:description xml:lang="id-ID">Studi yang mendalam mengenai penggunaan energi alternatif untuk mengatasi kebutuhan energi manusia dewasa ini sangat penting. Pantai Kolbano terletak di Desa Kolbano, Kecamatan Kolbano Kabupaten TTS (Timor Tengah Selatan) Propinsi Nusa Tenggara Timur dengan luas wilayah&amp;nbsp; kurang lebih 17 km persegi hamparan wilayah pantai Kolbano menghadap ke arah bentangan samudra Hindia, sehingga konsistensi tinggi gelombang yang dihasilkan cukup besar. Tinggi gelombang cukup besar dapat dimanfaatkan sebagai pembangkit listrik alternatif. Penelitian ini dilakukan di perairan pantai Kolbano, data tinggi gelombang dan kecepatan angin yang berasal dari BMKG (Badan Metrologi, Klimatologi, dan Geofisika) Kota Kupang tahun 2019 – 2021 dengan tinggi gelombang berkisar 0,31 sampai 2,3 m dan kecepatan angin berkisar 1,05 sampai 8,48 knot. Penelitian ini bertujuan untuk menganalisis potensi energi gelombang laut yang mampu dikoversikan oleh perangkat “Oscillating Water Column” di pesisir pantai kolbano sebagai sumber energi terbaharukan. Berdasarkan hasil penelitian diperoleh Daya terkecil yang dapat dibangkitkan untuk tinggi gelombang minimum adalah sebesar: 4459,416 Watt dan daya maksimum yang dapat dibangkitkan pada keadaan tinggi gelombang maksimum adalah: 20593,61 Watt&amp;nbsp; serta daya yang diserap oleh perangkat OWC mencapai nilai terbesar pada rentang kh 0,17 – 0,21, yaitu sebesar 20593,61 Watt.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7269</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.7269</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 14-20</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 14-20</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7269/3730</dc:relation>
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				<identifier>oai:ejurnal.undana.ac.id:article/7270</identifier>
				<datestamp>2024-02-01T06:35:53Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Studi Pengaruh Rasio Tekanan Kompresor Turbocharger Terhadap Kinerja Mesin Diesel</dc:title>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:creator>Wadu, Arky B. J.</dc:creator>
	<dc:description xml:lang="en-US">The use of a turbocharger in large diesel engines has become a demand because it can increase engine output and efficiency by utilizing exhaust gas from combustion (exhaust gas). Turbocharger is a device to increase the intake of air into the cylinder by utilizing the energy of exhaust gases from combustion. The purpose of this study is to analyze the effect of differences in the turbocharger pressure ratio on diesel engine performance using Diesel-RK software. The diesel engine under study is model 4D56 2.5L which uses a single turbocharger with maximum power of 136 PS at 4000 rpm and maximum torque of 324 N.m at 2000 rpm. The compressor pressure ratio under study was only 1.5 and 2.5 compared to a diesel engine without a turbocharger or natural aspirated engine (NA). The engine capacity is 2477 cc, 4 cylinders, and the compression ratio is 18:1. The fuel used is SME Biodiesel (Soya Methyl Ester, C15H28) with a cetane number of 56.5. The results of this study indicate that the use of a turbocharger will lead to an increase in engine power, especially at a high compressor pressure ratio due to the larger air filling when compared to the NA diesel engine for the engine speed range of 750 rpm to 5000 rpm. For diesel engines that use a turbocharger, the BSFC will decrease with increasing engine speed.</dc:description>
	<dc:description xml:lang="id-ID">Penggunaan turbocharger di mesin-mesin diesel berukuran besar telah menjadi tuntutan karena dapat meningkatkan daya keluaran dan efisiensi mesin dengan memanfaatkan gas buang sisa hasil pembakaran (exhaust gas). Turbocharger merupakan sebuah peralatan untuk menambah asupan udara yang masuk ke dalam silinder dengan memanfaatkan energi gas buang hasil pembakaran. Adapun tujuan penelitian ini adalah menganalisis pengaruh perbedaan rasio tekanan turbocharger terhadap kinerja mesin diesel menggunakan perangkat lunak Diesel-RK. Mesin diesel yang diteliti adalah tipe 4D56 2.5L yang menggunakan turbocharger tunggal dengan maksimum daya 136 PS pada putaran 4000 rpm, dan torsi maksimum 324 Nm pada 2000 rpm. Rasio tekanan kompresor yang diteliti hanya 1,5 dan 2,5 yang dibandingkan dengan mesin diesel tanpa turbocharger (Natural Aspirated/NA). Kapasitas mesin 2477 cc, 4 silinder, dan rasio kompresi 18:1. Bahan bakar yang digunakan adalah Biodiesel SME (Soya Methyl Ester, C15H28) dengan angka setana 56,5. Hasil dari penelitian ini menunjukkan bahwa penggunaan turbocharger akan menyebabkan peningkatan daya mesin, terutama pada rasio tekanan kompresor yang tinggi karena pengisian udara yang lebih besar bila dibandingkan dengan mesin diesel NA untuk rentang putaran mesin 750 rpm sampai dengan 5000 rpm. Untuk mesin diesel yang menggunakan turbocharger, BSFC akan berkurang dengan meningkatnya putaran mesin.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7270</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.7270</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 21-27</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 21-27</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7270/3731</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/7271</identifier>
				<datestamp>2024-02-01T06:43:40Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Studi Pengaruh Temperatur Kondensasi Terhadap Kinerja Siklus Rankine Organik Menggunakan Fluida Kerja R245FA Dan R515A</dc:title>
	<dc:creator>Lobo, Jefrianto</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:creator>Nurhayati, Nurhayati</dc:creator>
	<dc:description xml:lang="en-US">Since 2000 power plants with the organic Rankine cycle (ORC) are the most widely used in the world that utilize low-temperature heat sources such as industrial heat waste, biomass, geothermal and solar energy. The working fluid for the ORC system must meet several criteria of physical properties including, environmentally friendly, non-flammable, non-toxic, and non-corrosive. Therefore, this study aims to analyze the effect of condensation temperature on the thermodynamic performance of a standard organic Rankine cycle with turbine power of 20 kW with working fluids R245FA, and R515A. Simulation of system performance using Genetron Properties software with evaporation temperature held constant at 80oC and condensation temperature varied at 30 – 40oC. The results of this study indicate that increasing the condensing temperature greatly increases the pumping power consumption but decreases the pressure ratio in the turbine, and the thermal efficiency of the system. The pumping power used to circulate the R515A is ±2.2 times higher than that of circulating it. The thermal efficiency of the ORC system that uses the two working fluids reviewed does not have a significant difference</dc:description>
	<dc:description xml:lang="id-ID">Sejak tahun 2000 pembangkit listrik dengan siklus Rankine organik (organic Rankine cycle/ORC) adalah yang paling banyak digunakan di dunia yang memanfaatkan sumber kalor bertemperatur rendah seperti limbah kalor industri, biomassa, geothermal, dan energi surya.&amp;nbsp; Fluida kerja untuk sistem ORC harus memenuhi beberapa kriteria sifat fisik diantaranya, ramah lingkungan, tidak mudah terbakar, tidak beracun, dan tidak korosif. Oleh karena itu, penelitian ini bertujuan untuk menganalisis pengaruh temperatur kondensasi terhadap kinerja termodinamika siklus Rankine organik standar berdaya turbin 20 kW dengan fluida kerja R245fa, dan R515A. Simulasi kinerja sistem menggunakan perangkat lunak Genetron Properties dengan temperatur evaporasi dipertahankan konstan pada 80oC dan temperatur kondensasi divariasikan pada 30 – 40oC. Hasil studi ini menunjukkan bahwa peningkatan temperatur kondensasi sangat berdampak pada meningkatnya konsumsi daya pemompaan tetapi menurunkan rasio tekanan di turbin, dan efisiensi termal sistem. Daya pemompaan yang digunakan untuk mensirkulasikan R515A ±2,2 kali lebih tinggi dibandingkan mensirkulasikan. Efisiensi termal sistem ORC yang menggunakan kedua fluida kerja yang ditinjau tidak memiliki perbedaan yang signifikan</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-05-27</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7271</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.7271</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 28-33</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 28-33</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7271/3732</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/7441</identifier>
				<datestamp>2024-02-01T06:55:40Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">Rancang Bangun Alat Pencampur Pakan Ikan Dengan Mekanisme Sistem Gerak Rotary Menggunakan Metode VDI 2221</dc:title>
	<dc:title xml:lang="id-ID">Rancang Bangun Alat Pencampur Pakan Ikan Dengan Mekanisme Sistem Gerak Rotary Menggunakan Metode VDI 2221</dc:title>
	<dc:creator>salem, arianto</dc:creator>
	<dc:creator>mangesa, daud pulo</dc:creator>
	<dc:creator>Maliwemu, Erich</dc:creator>
	<dc:description xml:lang="en-US">Along with the development of science and technology, this is what supports making a fish feed mixing machine. The main goal in creating this technological innovation is so that the results obtained are more effective, efficient and of high quality.&amp;nbsp; The manufacture of this tool has gone through several processes of theoretical calculation of the forces that occur when the machine is working, the selection of component materials, and the process of working on then assembling the components of the machine, testing the performance of the machine according to the design with animal feed materials. In this design, the mechanical system of the fish feed mixing machine the source of the rotation is a gear motor that moves the belt and pulley which is directly connected to the reduser which then moves the Mixing shaft with chains and sprockets as an introduction.&amp;nbsp;
Keywords : Fish Meal, Bone Meal, Shrimp. Mixing Machine,VDI Method 2221.</dc:description>
	<dc:description xml:lang="id-ID">Seiring dengan perkembangan ilmu pengetahuan dan teknologi inilah yang mendukung untuk membuat Mesin Pencampur Pakan ikan. Tujuan utama dalam menciptakan inovasi teknologi ini supaya hasil yang didapat lebih efektif, efisien dan berkualitas. &amp;nbsp;Pembuatan alat ini sudah melalui beberapa proses perhitungan secara teoritis gaya-gaya yang terjadi pada saat mesin bekerja, pemilihan material komponen, dan proses pengerjaan kemudian merakit komponen-komponen mesin, menguji kinerja mesin sesuai perancangan dengan bahan pakan ternak. Dalam perancangan ini system mekanis mesin Pencampur pakan ikan sumber putaranya adalah motor gear yang menggerakan sabuk dan puli yang terhubung langsung ke reduser yang kemudian menggerakan poros Pencampur dengan rantai dan sprocket sebagai pengantar.
&amp;nbsp;
&amp;nbsp;
Kata Kunci : Tepung Ikan, Tepung Tulang, Udang. Mesin Pencampur,Metode VDI 2221.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-08-05</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7441</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.7441</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 64-70</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 64-70</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7441/4018</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/7890</identifier>
				<datestamp>2024-02-01T06:44:57Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="id-ID">Studi Kinerja Teoritis Pengkondisian Udara Menggunakan R32, R290 Dan R410a</dc:title>
	<dc:creator>Sengge, James Roland</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:description xml:lang="id-ID">The use of more environmentally friendly refrigerants in air conditioning systems has become a central demand and issue in the future. This article presents the simulation results of the comparison of the use of R32 (difluoromethane), R290 (propane) and R410A (difluoromethane+pentafluoroethane) on the performance of air conditioning systems. The thermodynamic analysis of the system using the two refrigerants used the CoolTools version 1.0 software at several variations of the evaporation temperature, with the condensation temperature held constant. The important quantities analyzed are heat release in the condenser, compressor power, and coefficient of performance. The results of this study indicate that the performance of air conditioning using R290 is higher than the use of R32 and R410A while the lowest coefficient of performance is owned by air conditioning using R410A. In addition, R290 is more environmentally friendly than R32 and R410A, so the use of R290 is highly recommended</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7890</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.7890</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 41-47</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 41-47</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7890/4006</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/7910</identifier>
				<datestamp>2024-02-01T06:45:58Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Studi Eksperimen Kinerja Penukar Kalor Kompak Sebagai Pemanas Tambahan di Rumah Pengering Hibrid</dc:title>
	<dc:creator>Ludji, Sherly Satriani</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:description xml:lang="id-ID">The process of drying a hybrid system that uses a combination of solar energy and biomass contains some useful heat in the chimney of the biomass stove. This heat waste has a high enough temperature so that with the help of a compact heat exchanger it can be used as an additional heater. The purpose of this study was to analyze the performance of a cross-flow type discrete flat plate-finned tube compact heat exchanger with an inline tube arrangement which is used as an additional heating device in the hybrid dryer housing. The test was carried out at 10.00-15.00 for three days of testing with variations in air flow velocity of 1.3 m/s, 1.6 m/s and 1.8 m/s while the velocity of water flow in the pipe was considered constant with 0.000168 m/s. s and the air flow velocity in the exhaust fan is kept constant at 1 m/s. The results of this study indicate that the overall heat transfer coefficient is strongly influenced by the effectiveness of the heat exchanger, and with the increase in the effectiveness of the heat exchanger, the heat transfer coefficient will also increase. The highest overall heat transfer coefficient was obtained on the second day, namely 99.263 W/m2.oC. The total heat transfer rate is influenced by the effectiveness of the heat exchanger but at a certain value both values ​​tend to be stable due to the limited dimensions of the heat exchanger. NTU is very influential on the effectiveness of the exchanger, and in this case the value of NTU ranges from 0.6-0.8 while the effectiveness of the heat exchanger ranges from 46%-56%</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7910</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.7910</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 57-63</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 57-63</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/7910/4016</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8047</identifier>
				<datestamp>2024-02-01T06:46:52Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="id-ID">Desain Cold Storage untuk Pembekuan Ikan Laut Menggunakan  Perangkat Lunak Coolselector®2</dc:title>
	<dc:creator>Selan, Rima Nindia</dc:creator>
	<dc:description xml:lang="id-ID">The process of cooling and freezing carried out on fish products is one of the preservation methods that apply a cooling machine in its operation. The refrigeration machine used applies a steam compression refrigeration system with R404A refrigerant as its working fluid. A design that is not following the standards can result in significant losses both in material and economic terms. Besides, the wrong model can also cause the performance of the engine to cool down. The purpose of this study is to design and analyze the performance of cold storage for freezing fish using Coolselector®2 software version 3.6.1. Performance analysis is based on superheating and subcooling temperature variations to determine its effect on the performance of the cooling engine. Changes for superheat temperatures carried out at the 8K, 9K, 10K, 11K and 12K levels while the subcooling temperature is considered constant at the 3K level. Variations were made at subcooling temperatures at the 3K, 4K, 5K, 6K and 7K levels with superheat temperatures considered consistent at the 5K level. The result of cold storage room design shows that the room has a cooling capacity of 14.54 kW. Analysis of the performance of the engine coolant design shows that the refrigeration machine has excellent performance. It will be proved by the higher subcooling and superheat temperatures, the COP also increase. The most top COP is at the 12K superheat temperature level of 2.045, while for the subcooling temperature at the 7K level of 3.144</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8047</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.8047</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 71-76</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 71-76</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8047/4099</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8061</identifier>
				<datestamp>2024-02-01T06:47:16Z</datestamp>
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			</header>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Karakteristik Pembakaran Premixed Campuran Bioetanol Dan Premium (Gasoline)</dc:title>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Pah, Jack C.A.</dc:creator>
	<dc:creator>Baria, Metrisno</dc:creator>
	<dc:creator>Baria, Metrisno</dc:creator>
	<dc:description xml:lang="id-ID">Bioethanol is one of the renewable energies that can be used as fuel. Ethanol produced from palm sap can be used to mix fuel oil (BBM) into gasohol (energy mixed) which marks green fuels era begin. This research was conducted by burning a mixture of Bioethanol (105 ml, 120 ml, 135 ml, 143 ml) and Premium (45 ml, 30 ml, 15 ml, 7 ml), to determine the effect of adding Premium into bioethanol on temperature and flame color. The combustion process is carried out by premixed, in which a mixture of bioethanol and premium is heated to produce steam. This steam will be given a spark to produce combustion of the mixture. After the steam burns and produces a fire, then the air flow rate is regulated until the fire is blow-off. The results of the study indicate that, if the composition of bioethanol in the fuel is increasing, the flame looks bluer and the equivalence ratio value becomes smaller. In addition, the temperature reached at point 1 is higher than point 2. This indicates that point 1 is the final combustion zone, which is where the fuel has been burned completely</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8061</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.8061</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 77-83</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 77-83</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8061/4102</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8062</identifier>
				<datestamp>2024-02-01T06:50:15Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Temperatur, Warna Nyala Api, dan Tinggi Api pada Pembakaran Premixed Bioetanol dari Lontar (Borassus Flabellifer)</dc:title>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Pah, Jack C.A.</dc:creator>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Baitanu, Rivanto</dc:creator>
	<dc:description xml:lang="id-ID">Bioethanol is a renewable energy that can be used as an alternative fuel. Bioethanol is alcohol produced from plants by using microorganisms through a fermentation process. This study aims to determine and analyze the combustion characteristics of premixed bioethanol from Lontar (Borassus Flabellifer), including: temperature, flame height and flame color. The research method uses a variety of air to be inserted, starting from 0 ml/min air flow to blow off in multiples of 50 ml/min. From the results of research that has been done, it shows that in premixed combustion the more air volume is given, the more blue the color of the flame will be, the temperature of the fire will increase and the height of the fire will be lower</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8062</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.8062</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 84-89</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 84-89</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8062/4103</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8063</identifier>
				<datestamp>2024-02-01T06:49:49Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Rancang Bangun Alat Pirolisis Reaktor Tabung Bertingkat untuk Daur Ulang Sampah Plastik Polypropylene (PP) dengan Menggunakan Metode VDI 2221</dc:title>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Husein, Fuaddin B.</dc:creator>
	<dc:description xml:lang="id-ID">The benefits of this research are to produce fuel oil products from Polypropylene (PP) plastic waste as an alternative energy source by utilizing pyrolysis technology and increasing the economic value of unused plastic waste and as a reference for overcoming environmental pollution caused by plastic waste. The final result of this research is a detailed drawing of the tool, the design of the tool, and the results of the testing process on the tool in the form of data on the quantity of oil in each test carried out. With the VDI 2221 design method, a multilevel tube reactor pyrolysis device can be made for recycling polypropylene (PP) plastic waste with the best variant selection technique. The application of the method in this study was successfully proven by choosing concept 4 as the best concept and the concept could be made in real terms. Furthermore, the tool after testing is proven to be able to be used to produce products, as evidenced by the results of product testing in the form of oil, residue and gases</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8063</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.8063</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 90-100</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 90-100</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8063/4104</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8064</identifier>
				<datestamp>2024-02-01T06:49:26Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Analisis Pengaruh Variasi Massa Material Arang Terhadap Proses Desalinasi Air Laut Tenaga Surya</dc:title>
	<dc:creator>Ojan, Alfond Fasselis</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:description xml:lang="id-ID">Desalination is the process of distilling seawater using a heat source from solar energy to obtain fresh water. Therefore, one of the methods used to increase the results of the seawater desalination process is to make a tool using solar energy and charcoal material. This research was conducted to determine the effect of using charcoal material on the seawater desalination process. The use of charcoal material is expected to increase the absorption of heat energy and accelerate the evaporation process of seawater. In this study, the highest efficiency was obtained in basin I with a mass of 500 grams of charcoal, namely 5.393% with 70 ml of water produced, followed by basin IV without using charcoal material with an efficiency of 6.116% with fresh water produced of 60 ml, followed by basin IV. II with a mass of 400 grams of charcoal obtained an efficiency of 1.585% with 59 ml of water produced. And in basin III the efficiency and fresh water produced is less, namely 0.004% and the water produced is 41 ml</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8064</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i01.8064</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 01 (2022): April 2022; 101-109</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 01 (2022): April 2022; 101-109</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8064/4105</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8325</identifier>
				<datestamp>2024-02-01T06:21:35Z</datestamp>
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				<setSpec>driver</setSpec>
			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="id-ID">Implementasi Konsep Ergonomi pada Penggunaan Alat Tenun Tradisional Rumah Tenun Kampung Sabu</dc:title>
	<dc:creator>Selan, Rima N.</dc:creator>
	<dc:creator>Tualaka, Theodora M. C.</dc:creator>
	<dc:creator>Manu, Ariency Kale Ada</dc:creator>
	<dc:description xml:lang="en-US">HIX symbolize human work from beginning to end. &quot;X&quot; is a variable for: design, manufacturing, test, and so on. “HI” symbolizes human integrated. Human Integrated System (HID) is a system designed with the capabilities and limitations possessed by humans so that the results of the design can increase effectiveness. Occupational diseases are caused by work and work attitudes. One of the occupational diseases of the spine is lower back pain, which arises due to a static position at work and is continuous. Every year 15%-45% of adults suffer from low back pain and generally occurs at the age of 35-55 years. The application of ergonomics is a design activity or redesign that is adapted to technological advances as well as anatomy, psychology, industrial medicine. The sitting position during the process of carrying out weaving activities which lasts a long time with a time of 8 hours per day, causes the sitting position to become less comfortable and results in complaints of pain in the back or spine. The ultimate goal of this study is to implement the concept of ergonomics in the use of traditional looms so as to reduce complaints of pain or spinal pain from weavers</dc:description>
	<dc:description xml:lang="id-ID">HIX melambangkan pekerjaan manusia dari awal hingga akhir. “X” merupakan suatu variabel untuk: design, manufacturing, test, dan sebagainya. “HI” melambangkan human intergrated. Human Intergrated System (HID) merupakan suatu system yang dirancang dengan kemampuan dan keterbatasan yang dimiliki oleh manusia sehingga hasil dari perancangan tersebut dapat meningkatkan efektivitas. Penyakit akibat kerja disebabkan oleh pekerjaan dan sikap kerja. Salah satu penyakit akibat kerja pada tulang belakang adalah nyeri punggung bawah, yang timbul karena posisi statis dalam bekerja dan bersifat continue. Setiap tahun 15%–45% orang dewasa menderita nyeri punggung bawah dan umumnya terjadi pada usia 35-55 tahun. Penerapan ergonomi merupakan aktivitas rancang bangun (desain) ataupun rancang ulang yang disesuaikan dengan kemajuan teknologi dan juga anatomy, psysiology, industrial medicine. Posisi duduk pada saat proses pelaksaan kegiatan menenun yang berlangsung lama dengan waktu 8 jam per hari, menyebabkan posisi duduk menjadi kurang nyaman dan mengakibatkan keluhan sakit terhadap punggung ataupun tulang belakang. Tujuan akhir dari penelitian ini adalah mengimplemtasikan konsep ergonomi pada penggunaan alat tenun tradisional sehingga dapat mengurangi keluhan sakit atau nyeri tulang belakang dari penenun.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-18</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8325</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.8325</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 20-24</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 20-24</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8325/4535</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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				<identifier>oai:ejurnal.undana.ac.id:article/8395</identifier>
				<datestamp>2024-02-01T06:20:48Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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<oai_dc:dc
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	xmlns:dc="http://purl.org/dc/elements/1.1/"
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	<dc:title xml:lang="id-ID">Uji kinerja Alat Uji Tarik Berbasis digital  Kapasitas 500 N</dc:title>
	<dc:creator>muslimin, mukhlis</dc:creator>
	<dc:creator>Seng, Ahamad</dc:creator>
	<dc:creator>Aditiya, Raden</dc:creator>
	<dc:creator>Hartono, Rudi</dc:creator>
	<dc:description xml:lang="id-ID">Tujuan penelitian untuk mengetahui unjuk kerja alat uji tarik komposit, bentuk benda uji yang akan diuji adalah komposit fragmentasi. Bahan yang digunakan sebagai bahan uji adalah komposit yang menggunakan matriks resin yukalac 157 dan sabut kelapa, sebelum membuat benda uji, metode perlakuan serat dengan asap cair terlebih dahulu dilakukan dalam 2 tahap (1) perendaman serat dengan asap cair dengan variasi 1, 2, dan 3 jam (2) kemudian serat dipanaskan dalam oven pada suhu 40 derajat selama 30 menit. Hasil penelitian menunjukkan bahwa pahat mampu menarik spesimen komposit fragmentasi telah mencapai 284 N, sedangkan perlakuan asap cair pada serat sabut kelapa berpengaruh terhadap peningkatan kekuatan komposit fragmentasi, kuat tarik maksimum terjadi pada serat perlakuan P2J sebesar 39,313 MPa. Dari hasil penelitian tersebut dapat direkomendasikan sebagai alat uji fragmentasi spesimen komposit.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-18</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8395</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.8395</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 15-19</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 15-19</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8395/4534</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8778</identifier>
				<datestamp>2024-02-01T06:19:24Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">Pengaruh Ketebalan Briket Arang terhadap Perubahan Temperatur dan Kelembaban pada Desalinasi Surya Sistem Interfacial Heating</dc:title>
	<dc:creator>Siagian, Saut Ronny Tuah</dc:creator>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:creator>Riwu, Defmit B. N.</dc:creator>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:description xml:lang="en-US">Solar desalination is the process of reducing brine salinity by using heat from the sun to produce fresh water. Distillation is one of the traditional solar desalination methods, but it has a low evaporation rate. Recently, interfacial solar evaporation by thermal localization at the liquid interface has been proposed as a promising alternative to evaporation. In this study, briquettes were investigated as as the interface solar absorber to increase vapor production. Experiments were carried out in 4 single-slope type distillers for 8 hours under clear sunlight using 10, 15 and 20 mm thick briquettes. For comparison, we also looked at distiller (basin) with no charcoal. Temperatures and humidity were measured at several position within the basin to identify factors contributing to seawater evaporation. We found that the vapor production increases when temperature is high and humidity is low. While condensation is highly dependent on humidity, high humidity is able to make water vapor molecule reach its dew point faster. This condensation process will greatly impact the productivity of the distillate.</dc:description>
	<dc:description xml:lang="id-ID">Desalinasi surya merupakan proses pengurangan kadar garam dari air asin dengan memanfaatkan panas matahari untuk menghasilkan air tawar. Distilasi sebagai salah satu metode desalinasi surya tradisional kerap diaplikasikan tetapi memiliki laju evaporasi yang rendah. Dalam beberapa tahun terakhir, interfacial heating telah diusulkan sebagai alternatif evaporasi dengan menciptakan lokalisasi panas pada permukaan cairan. Dalam penelitian ini, briket arang diteliti sebagai material solar absorber untuk mempercepat proses evaporasi. Percobaan dilakukan pada 4 basin tipe single slope dengan menggunakan briket setebal 10, 15 dan 20 mm selama 8 jam di bawah sinar matahari. Basin tanpa arang juga diuji sebagai perbandingan. Temperatur dan kelembaban diukur di beberapa titik dalam basin untuk mengidentifikasi faktor-faktor yang mempengaruhi evaporasi. Telah ditemukan pembentukan uap meningkat ketika temperatur tinggi dan kelembaban rendah. Sedangkan kondensasi sangat bergantung pada kelembaban, kelembaban yang tinggi mampu membuat molekul uap air lebih cepat mencapai titik embunnya. Proses kondensasi ini akan sangat berdampak pada produktivitas distilat.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-18</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8778</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.8778</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 1-7</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 1-7</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8778/4532</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8850</identifier>
				<datestamp>2026-01-15T13:02:03Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="en-US">SIMULASI COMPUTATIONAL FLUID DYNAMICS (CFD) RUMAH PENGERING UMBI PORANG SISTEM HYBIRD MELALUI VARIASI BEBAN</dc:title>
	<dc:creator>bili, mario ardy</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:description xml:lang="en-US">Pengeringan produk pertanian khususnya adalah kadar krim dari produk sampai keseimbangan udara tercapai dengan lingkungan atau tingkat kelembaban di mana jamur, serangga dan perusak tidak dapat aktif lagi. Pengeringan merupakan salah satu proses pasca panen yang umum dilakukan pada berbagai produk pertanian yang bertujuan untuk menurunkan kadar air bahan sampai pada tingkat yang aman untuk disimpan atau digunakan pada proses lainnya. Proses pengeringan hasil pertanian yang banyak dilakukan oleh petani Indonesia adalah dengan pengeringan. Dengan mensimulasikan distribusi dan pola aliran udara, akan dimungkinkan untuk menentukan desain bangunan beserta penempatan parameternya. Pemanfaatan energi matahari menggunakan plastik ultraviolet.Mengetahui kinerja pengeringan dan distribusi suhu di ruang pengujian melalui pengujian menggunakan umbi porang dan tanpa umbi porang dari hasil simulasi perangkat lunak Gambit 2.4.6 dan Ansys 17.0 : Student Version. Simulasi pola aliran udara panas yang terjadi pada rumah pengering menggunakan model simulasi CFD melalui variasi beban. pada Pengeringan perlu diketahui dengan mensimulasikan Computational Fluid Dynamics (CFD). Salah satu keuntungan dari analisis CFD, antara lain, memberikan pemahaman yang rinci tentang distribusi aliran panas dan massa, dan mendukung untuk mengubah geometri.&amp;nbsp;</dc:description>
	<dc:description xml:lang="id-ID">Pengeringan produk pertanian khususnya adalah kadar krim dari produk sampai keseimbangan udara tercapai dengan lingkungan atau tingkat kelembaban di mana jamur, serangga dan perusak tidak dapat aktif lagi. Pengeringan merupakan salah satu proses pasca panen yang umum dilakukan pada berbagai produk pertanian yang bertujuan untuk menurunkan kadar air bahan sampai pada tingkat yang aman untuk disimpan atau digunakan pada proses lainnya. Proses pengeringan hasil pertanian yang banyak dilakukan oleh petani Indonesia adalah dengan pengeringan. Dengan mensimulasikan distribusi dan pola aliran udara, akan dimungkinkan untuk menentukan desain bangunan beserta penempatan parameternya. Pemanfaatan energi matahari menggunakan plastik ultraviolet.Mengetahui kinerja pengeringan dan distribusi suhu di ruang pengujian melalui pengujian menggunakan umbi porang dan tanpa umbi porang dari hasil simulasi perangkat lunak Gambit 2.4.6 dan Ansys 17.0 : Student Version. Simulasi pola aliran udara panas yang terjadi pada rumah pengering menggunakan model simulasi CFD melalui variasi beban. pada Pengeringan perlu diketahui dengan mensimulasikan Computational Fluid Dynamics (CFD). Salah satu keuntungan dari analisis CFD, antara lain, memberikan pemahaman yang rinci tentang distribusi aliran panas dan massa, dan mendukung untuk mengubah geometri.&amp;nbsp;</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2025-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8850</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v12i01.8850</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 12 No 01 (2025): April 2025; 1-11</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 12 No 01 (2025): April 2025; 1-11</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v12i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8850/8616</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2025 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8889</identifier>
				<datestamp>2024-02-01T06:20:04Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
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	<dc:title xml:lang="id-ID">Analisis Gas Hasil Pembakaran Tungku Gasifikasi Tongkol Jagung</dc:title>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:creator>Nahak, Jufrianus Aven</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:description xml:lang="en-US">As an agricultural country, Indonesia has an abundant biomass energy source. One of the potential agricultural wastes to be processed into alternative fuels is corn cobs. Therefore, the purpose of his study was to compare the mass of corn cobs, namely 4 kg, 8 kg, and 12 kg, to gas produced by gasification at a&amp;nbsp; temperature of 100-180 ºC. The results of the study showed that the gas produced by gasification of corn cobs with a mass of 4 kg, 8 kg, and 12 kg had a percentage of gas that tends to decrease with increasing fuel mass, namely 8 kg and 12 kg, the decrease caused by several factors, including the relative moisture content, high and low combustion temperatures. And the efficiency resulting from the combustion of the gasification furnace with mass variations, namely: 4 kg&amp;nbsp; = 96,8843 %, 8 kg&amp;nbsp; = 88,1387 % dan 12 kg&amp;nbsp; = 88,1485%.</dc:description>
	<dc:description xml:lang="id-ID">Indonesia sebagai negara agraris, mempunyai sumber energi biomassa yang melimpah Salah satu limbah pertanian yang cukup potensial untuk diolah menjadi bahan bakar alternatif adalah tongkol jagung. Oleh karena itu tujuan dari penelitian ini adalah melalukan perbandingan antara massa tongkol jagung yaitu 4 kg, 8 kg dan 12 kg terhadap gas hasil gasifikasi dengan suhu 100-180 ºC. Hasil penelitian tersebut menunjukan bahwa gas hasil gasifikasi tongkol jagung dengan massa 4 kg, 8 kg dan 12 kg menghasilkan persentase gas yang cendrung menurun seiring pembakaran massa bahan bakar yaitu 8 kg dan 12 kg, penurunan tersebut diakibatkan oleh beberapa faktor antara lain kadar air yang relatif tinggi dan suhu pembakaran yang rendah. Dan efisienasi yang dihasilkan dari pembakaran tungku gasifikasi dengan variasi massa yaitu: 4 kg &amp;nbsp;= 96,8843 %, 8 kg &amp;nbsp;= 88,1387 % dan 12 kg &amp;nbsp;= 88,1485%. &amp;nbsp;</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-18</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8889</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.8889</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 8-14</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 8-14</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8889/4541</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/8921</identifier>
				<datestamp>2024-02-01T06:22:11Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">CONTENT ANALYSIS OF RICE HUSK GASIFICATION PROCESS</dc:title>
	<dc:title xml:lang="id-ID">Analisis Kandungan Hasil Proses Gasifikasi Sekam Padi</dc:title>
	<dc:creator>Sanusi, Arifin</dc:creator>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:creator>Tamonob, Kristoforus</dc:creator>
	<dc:description xml:lang="en-US">&amp;nbsp;Rice husk biomass can be converted into renewable energy. Energy can be obtained by burning biomass directly, pyrolysis (without oxygen), or gasification (with limited oxygen) to produce liquid or gas fuel. Gasification is burning solid fuel in a gasifier container to produce gaseous fuel (syngas). This research was conducted by varying the mass of rice husk fuel to the gas produced by gasification. This study aimed to determine the effect of the mass of rice husk fuel on gas from gasification and the effect of gas from gasification of rice husk combustion on thermal efficiency. The results of the combustion of the gasification furnace show that the more rice husk mass, the more gas will be produced. Based on the thermal efficiency calculation results, a mass of 5 kg rice husk becomes 302.69%, and a mass of 10 kg rice husk becomes 250.75%, while a mass of 15 kg rice husk becomes 129.38%.</dc:description>
	<dc:description xml:lang="id-ID">&amp;nbsp;Biomassa sekam padi dapat dirubah menjadi energi terbarukan, Energi dapat diperoleh dengan pembakaran biomassa secara langsung, dapat juga dengan pirolisis (tanpa adanya oksigen) atau gasifikasi (dengan oksigen terbatas) untuk menghasilkan bahan bakar cair atau bahan bakar gas. Gasifikasi merupakan proses pembakaran bahan bakar padat dalam wadah gasifier untuk menghasilkan bahan bakar gas (syngas). Penelitian ini dilakukan dengan memvariasikan massa bahan bakar sekam padi terhadap gas hasil gasifikasi. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh massa bahan bakar sekam padi terhadap gas hasil gasifikasi dan untuk mengetahui pengaruh gas hasil gasifikasi pembakaran sekam padi terhadap efisiensi termal. Hasil pembakaran tungku gasifikasi menunjukan bahwa semakin banyaknya massa sekam padi maka semakin banyaknya pula gas yang dihasilkan. Berdasarkan hasil perhitungan efisiensi termal untuk massa sekam padi 5 kg menjadi 302,69% dan massa sekam padi 10 kg menjadi 250,75% sedangkan untuk massa sekam padi 15 kg menjadi 129,38%.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-18</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8921</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.8921</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 25-30</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 25-30</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/8921/4533</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9014</identifier>
				<datestamp>2024-02-01T06:07:28Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
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	<dc:title xml:lang="en-US">Analisis Eksperimental Variasi Kecepatan Aliran Udara Panas Pada Proses Pengeringan Ikan Menggunakan Rumah Pengering Tipe UV Solar Dryer</dc:title>
	<dc:creator>selan, lederson</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Sanusi, Arifin</dc:creator>
	<dc:description xml:lang="en-US">Penggunaan energi matahari dinilai sangat menguntungkan karena merupakan sumber energi terbarukan, salah satunya di bidang industri. Teknik pengawetan produk baru adalah dengan menggunakan teknik pengeringan. Pengembangan dan pemanfaatan energi surya perlu lebih diperluas dengan beberapa teknologi diantaranya Solar Air Heater. Pemanas udara surya adalah sejenis pemanas udara surya. Metode penelitian yang dilakukan adalah metode eksperimen pengering solar UV domestik untuk penjemuran ikan tembang dengan tambahan penyerapan panas radiasi matahari menggunakan solar air heater system.Dalam konfigurasi ini, udara diambil dari selubung bangunan atau dari lingkungan luar dan melewati pengumpul dimana udara dipanaskan secara konduksi dan konveksi di dalam penyerap. Analisis penelitian ini mengenai kecepatan udara panas yang masuk ke dry house dari solar air heater panel pada variasi kecepatan udara (3,3 m/s, 3,5 m/s, 3,6 m/s) dengan udara keluar dari drying house. (kipas buang) 1,5 m/s (konstan).&amp;nbsp;</dc:description>
	<dc:description xml:lang="id-ID">Pemanfaatan energi matahari dinilai sangat menguntungkan karena merupakan energi yang dapat dioptimalkan, salah satunya di bidang industri. Adapun teknik cara mengawetkan suatu produk baru yaitu dengan menggunakan teknik pengeringan. Pengembangan dan pemanfaatan energi matahari harus terus dikembangkan dengan beberapa teknologi diantaranya yaitu Solar Air Heater . Solar Air Heater adalah salah satu tipe pemanas udara tenaga matahari. Metode penelitian yang dilaksanakan adalah metode eksperimen terhadap rumah pengering UV solar dryer untuk pengeringan ikan sarden dengan tambahan penyerapan panas radiasi matahari menggunakan sistem solar air heater .Konfigurasi ini bekerja dengan menarik udara dari selubung bangunan atau dari lingkungan luar dan melewatkannya melalui kolektor dimana udara menghangat melalui konduksi dan konveksi pada absorber. Analisis penelitian ini mengenai kecepatan aliran udara panas yang masuk dari panel solar air heater ke dalam rumah Pengering dengan variasi kecepatan uadara (3,3 m/s, 3,5 m/s, 3,6 m/s) dengan udara keluar rumah Pengering ( exhaust fan ) 1,5 m/s (konstan).&amp;nbsp;</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9014</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.9014</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 35-41</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 35-41</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9014/6156</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9304</identifier>
				<datestamp>2024-02-01T06:07:57Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
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	<dc:title xml:lang="id-ID">Analisis Penurunan Faktor Geometri Pada Pengujian Performa Rotor Turbin Angin Sumbu Horizontal Tipe Propeler Tiga Blade</dc:title>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Dm, Muh. Guntur</dc:creator>
	<dc:creator>Mangesa, Daud P.</dc:creator>
	<dc:description xml:lang="id-ID">Penurunan faktor skala pengujian ataupun skala geometri pada kondisi laboratorium ini tentu sangat berpengaruh pada performa dari rotor secara signifikan sebagai akibat dari penurunan skala geometri maupun kondisi terowongan angin yang digunakan dalam pengujian. Oleh karena itu dalam penelitian ini dilakukan pengujian skala laboratorium terhadap performa turbin angin rotor tunggal melalui penurunan faktor skala geometri rotor turbin. Model blade rotor turbin angin menggunakan seri airfoil S826 yang dikeluarkan oleh NREL (National Renewable Energy Laboratory), diameter rotor pada skala lapangan (full scale) adalah 0,944 m. Penurunan faktor geometeri rotor turbin dari 30%, 26,5 % dan 25 % menunjukkan presentasi koefisien daya turbin terhadap turbin full scale (D=0,944m) mengalami penurunan. Presentasi penurunan koefisien daya turbin 1 dengan Cp/Cp,full = 8,94 %, dan masing-masing turbin 2 dan turbin 3 adalah&amp;nbsp; 1,74% dan 0,69 %. Sedangkan presentasi penurunan TSR turbin 1 dengan TSR/TSR,full = 72,63%, dan masing-masing turbin 2 dan turbin 3 adalah 32,49 % dan 21,5 %.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9304</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.9304</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 42-48</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 42-48</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9304/6157</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9322</identifier>
				<datestamp>2024-02-01T06:27:48Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="en-US">Rancang Bangun Mesin Pemipil Jagung Dengan Metode VDI 2222</dc:title>
	<dc:creator>bunganaen, wenseslaus</dc:creator>
	<dc:creator>Toai, Yopi</dc:creator>
	<dc:creator>Mangesa, Daud P.</dc:creator>
	<dc:description xml:lang="en-US">Corn farmers in general still use the traditional method of using their hands to separate the corn from the cobs, this requires more energy and time to separate the corn from the cobs. A shelling machine is needed as a means to assist farmers' needs in shelling corn to facilitate the existing shelling and save labor. The purpose of designing this corn sheller machine is to produce a design and produce a corn sheller machine for the needs of farmers in East Nusa Tenggara. The method of data collection and processing is carried out by applying the VDI (Verein Deutsche Inggenieur) 2222 method through 4 stages, namely analysis, design concept, design and embodiment. Based on the results of the planning of this corn sheller machine, the result of this corn sheller machine is that the shelled corn is clean from the corn cobs because it uses a soft material for shelling, namely rubber plucker so that it does not destroy the corn cobs.</dc:description>
	<dc:description xml:lang="id-ID">Petani jagung pada umumnya masih menggunakan cara tradisional yaitu menggunakan tangan untuk memisahkan jagung dari tongkol, hal ini memerlukan tenaga dan waktu yang lebih banyak untuk memisahkan jagung dari tongkol. Sebuah mesin pemipil dibutuhkan sebagai sarana untuk membantu kebutuhan petani dalam memipil jagung untuk mempermudah pemipilan yang ada dan menghemat tenaga pekerja. Tujuan perancangan mesin pemipil jagung ini untuk menghasilkan suatu rancangan dan memproduksi mesin pemipil jagung untuk kebutuhan para petani di Nusa Tenggara Timur. Metode pengumpulan dan pengolahan data dilakukan dengan menerapkan metode VDI (Verein Deutsche Inggenieur) 2222 melalui 4 tahapan yaitu analisa, konsep design, perancangan dan perwujudan. Berdasarkan hasil perencanaan mesin pemipil jagung ini, hasil dari mesin pemipil jagung ini yaitu jagung yang dipipil bersih dari tongol jagung karena menggunakan bahan yang lunak untuk memipil yaitu karet plucker sehingga tidak sampai menghancurkan tongkol jagung.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-19</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9322</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9322</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 53-59</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 53-59</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9322/4549</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9333</identifier>
				<datestamp>2024-02-01T06:32:24Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Rancang Bangun Alat Pencacah Batang Pisang Menjadi Bahan Baku Pembuatan Pupuk Organik</dc:title>
	<dc:creator>koebanu, iwi</dc:creator>
	<dc:creator>Pell, Yeremias M</dc:creator>
	<dc:creator>Maliwemu, Erich U.K.</dc:creator>
	<dc:description xml:lang="id-ID">Penelitian yang telah dilaksanakan adalah tentang “rancang bangun alat pencacah batang pisang menjadi bahan baku pembuatan pupuk organik. Tujuan penelitian ini adalah merancang bangun mesin pencacah batang pisang yang dapat mempersingkat waktu proses pencacahan dibandingkan proses pencacahan manual, untuk digunakan sebagai bahan baku pembuatan pupuk organik yang diharapkan dapat membantu masyarakat pertanian, untuk mempermudah proses produksi pencacahan batang pisang yang bisa jadi bahan untuk pupuk dengan waktu yang lebih singkat dan tenaga yang lebih efisien, dapat meningkatkan produksi pertanian baik kualitas maupun kuantitas, meningkatkan kualitas lahan secara berkelanjutan dan dapat mencegah degradasi lahan dan dapat menekan biaya operasional daripada harus membeli pupuk kimia yang relative mahal. Metode yang digunakan dalam penelitian ini adalah metode rancang bangun. Hasil penelitian menunjukan rancang bangun alat pencacah batang pisang menjadi bahan baku &amp;nbsp;pupuk organik yang dirancang dan diujicoba telah berfungsi secara baik sesuai dengan hasil rancangan. Dari hasil pengujian kinerja mesin pencacah batang pisang ini memperlihatkan bahwa mesin beroperasi dengan sangat baik dalam mencacah batang pisang, dengan hasil cacahan ± 5-11 mm dan kapasitas pencacahanya adalah 98 kg/jam. Semua komponen dari mesin pencacah batang pisang ini bekerja dengan baik sesuai fungsi komponen masing-masing.
Kata Kunci: Rancang Bangun, Pencacah Batang Pisang, Pupuk Organik.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-19</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9333</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9333</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 87-90</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 87-90</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9333/4553</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9334</identifier>
				<datestamp>2024-02-01T06:30:51Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Rancang Bangun Reflektor Cahaya Matahari Dengan Cermin Datar Berbasis Mikrokontroler Untuk Alat Solar Pasif Desalinasi</dc:title>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:creator>BOYMAU, MAIKEL WAHYUDI</dc:creator>
	<dc:creator>Tarigan, Ben V.</dc:creator>
	<dc:description xml:lang="en-US">The research has been conducted on design solar light reflector with flat mirror based on microcontroller for passive solar desalination device. The purpose of this research is to design solar light reflector using flat mirror based on microcontroller for passive solar desalination device that can function properly so that it can be used by coastal communities who need fresh water. The method used in this research is design. This research was started by design the reflector and reflector frame, design the servo mount, design the connecting arm and testing using sea water. The results showed the design of microcontroller-based solar reflector device for desalination equipment with dimensions of 60 cm long, 30 cm wide, and 55 cm high with drive system using Arduino UNO and driving motor using 25 kg DS3225 servo motor and with three reflector opening angles of 30⁰, 45⁰ and 60⁰ which move automatically every 2 hour and the production of fresh water produced in the 6 hour desalination process is 940 ml.</dc:description>
	<dc:description xml:lang="id-ID">Telah dilakukan penelitian tentang rancang bangun reflektor cahaya matahari dengan cermin datar berbasis mikrokontroler untuk alat solar pasif desalinasi. Tujuan penelitian ini adalah membuat rancang bangun reflektor cahaya matahari menggunakan cermin datar berbasis mikrokontroler untuk alat solar pasif desalinasi yang dapat berfungsi dengan baik sehingga bisa digunakan oleh masyarakat pesisir pantai yang membutuhkan air tawar. Metode yang digunakan dalam penelitian ini ada rancang bangun. Penelitian ini dimulai dengan melakukan rancang bangun reflektor dan bingkai reflektor, merancang dudukan servo, rancang lengan penghubung serta melakukan pengujian menggunakan air laut. Hasil penelitian menunjukkan rancang bangun&amp;nbsp; alat reflektor cahaya matahari berbasis mikrokontroler untuk alat desalinasi dengan dimensi panjang 60 cm, lebar 30 cm, dan tinggi 55 cm dengan sistem penggerak menggunakan Arduino UNO dan motor penggerak menggunakan motor servo DS3225 25 kg dan dengan tiga sudut bukaan reflektor yaitu sudut 30⁰, 45⁰ dan 60⁰ yang bergerak secara otomatis setiap 2 jam serta produksi air tawar yang dihasilkan dalam proses desalainasi 6 jam yaitu 940 ml.
Kata Kunci: Desalinasi, Rancang Bangun, Cahaya Matahari, Arduino UNO</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-19</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9334</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9334</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 66-70</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 66-70</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9334/4552</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9364</identifier>
				<datestamp>2024-02-01T06:24:55Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Studi Eksperimen Rumah Pengering Umbi Porang Sistem Hibrid (Energi Surya–Biomassa) dengan Variasi Tebal Irisan Chip</dc:title>
	<dc:creator>Koehuan, Verdy Ariyanto</dc:creator>
	<dc:creator>Bai’oef, Abner Paulus</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:description xml:lang="en-US">Penelitian ini bertujuan untuk mengetahui pengaruh ketebalan chips umbi porang terhadap distribusi temperatur dan kelembaban udara dalam rumah pengering solar dryer sistem hibrid (energi surya-biomassa) terhadap laju pengeringan umbi porang. Metode penelitian adalah metode eksperimen pada rumah pengering menggunakan plastik ultra violet untuk menyerap panas radiasi dari sinar matahari dan energi termal dari tungku pembakaran biomassa kemudian dialirkan ke dalam rumah pengering melalui alat penukar panas. Hasil penelitian menunjukkan temperatur rata-rata dalam rumah pengering dengan masing-masing ketebalan chip umbi porang 3 mm, 4 mm, dan 5 mm, yaitu 47,030C, 48,740C dan 49,730C. Kadar air akhir chips umbi porang setelah pengeringan adalah 11,74%bb dengan laju pengeringan tertinggi sebesar 0,330 kg/jam dan lama pengeringan 5 jam pada ketebalan 3 mm. Efisiensi pengeringan, dan efisiensi rumah pengering masing-masing diperoleh pada ketebalan chip 3 mm, yakni sebesar 17,86 % dan 6,06 %.</dc:description>
	<dc:description xml:lang="id-ID">This study aims to determine the effect of the thickness of the porang tuber chips on the distribution of temperature and humidity in the drying chamber of a hybrid system solar dryer (solar energy-biomass) on the drying rate of porang tubers. The research method is an experimental method in a drying chamber using ultra violet plastic to absorb radiant heat from sunlight and thermal energy from a biomass combustion furnace and then flowing into the drying chamber through a heat exchanger. The results showed that the average temperature in the drying chamber with porang tuber chip thickness of 3 mm, 4 mm and 5 mm, respectively, was 47.030C, 48.740C and 49.730C. The final moisture content of porang tuber chips after drying was 11.74% wb with the highest drying rate of 0.330 kg/hour and 5 hours of drying time at 3 mm thickness. Drying efficiency and drying housing efficiency were respectively obtained at 3 mm chip thickness, namely 17.86% and 6.06%.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-18</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9364</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9364</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 31-39</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 31-39</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9364/4542</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/9365</identifier>
				<datestamp>2024-02-01T06:26:13Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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	<dc:title xml:lang="id-ID">Simulasi Termodinamika Pengaruh Temperatur Subcooling di Kondensor  Terhadap Kinerja Cold Storage</dc:title>
	<dc:creator>bunganaen, wenseslaus</dc:creator>
	<dc:description xml:lang="en-US">Temperatur subcooling di kondensor dapat mempengaruhi kinerja sistem refrigerasi secara keseluruhan. Salah satu sistem refrigerasi yang memegang peran penting dalam rantai dingin produk perikanan adalah cold storage. Makalah ini membahas studi termodinamika tentang pengaruh temperatur subcooling kondensor terhadap kinerja cold storage yang beroperasi berdasarkan siklus refrigerasi kompresi uap berdasarkan perangkat lunak CoolPack. Temperatur subcooling yang divariasikan adalah 5 – 10 Kelvin, dan parameter kinerja sistem yang dianalisis adalah laju aliran massa refrigeran, pelepasan kalor di kondensor, daya kompresor, dan koefisien kinerja sistem. Hasil studi ini menunjukkan bahwa dengan meningkatnya temperatur subcooling maka laju aliran massa refrigeran semakin berkurang sehingga daya kompresor dan laju pelepasan kalor di kondensor juga berkurang. Dengan demikian maka koefisien kinerja cold storage akan meningkat seiring dengan meningkatnya temperatur subcooling.</dc:description>
	<dc:description xml:lang="id-ID">The subcooling temperature in the condenser can affect the overall performance of the refrigeration system. One of the refrigeration systems that plays an important role in the cold chain of fishery products is cold storage. This paper discusses thermodynamic study of the effect of condenser subcooling temperatures on the performance of cold storage that operates based on a vapor compression refrigeration cycle based on the CoolPack software. The subcooling temperatures varied was 5 – 10 Kelvin and the system performance parameters analyzed were refrigerant mass flow rate, heat rejected in the condenser, compressor power and coefficient of performance. The results of this study indicate that as the subcooling temperature increases, the refrigerant mass flow rate decreases so that the compressor power and the rate of heat release in the condenser also decrease. Thus, the performance coefficient of cold storage will increase as the subcooling temperature increases.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-18</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9365</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9365</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 40-46</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 40-46</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9365/4543</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9375</identifier>
				<datestamp>2024-02-01T06:27:12Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Karakteristik Pembakaran Premixed dari Campuran FAME (Fatty Acid Methyl Ester) dan Solar Murni</dc:title>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Talo, Piter</dc:creator>
	<dc:creator>Pah, Jack C.A.</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:description xml:lang="en-US">Penelitian ini bertujuan untuk mengetahui pengaruh penambahan solar murni ke dalam FAME (Fatty Acid Methyl Ester) pada proses pembakaran premixed, terhadap perubahan temperatur api dan warna nyala api. Percobaan dilakukan dengan membakar campuran minyak FAME&amp;nbsp; dan minyak solar murni, dengan persentasi FAME dan solar murni sebesar 70%:30%, 80%:20%, 90%:10%, dan 95%:5%. Hasil pengujian pembakaram premixed dari campuran ini kemudian diamati warna nyala apinya dengan bantuan camera digital dan temperatur nyala apinya pada 2 titik, yang mana diukur secara langsung dengan menggunakan termokopel. Equivalence ratio pada pembakaran ini dihitung untuk semua komposisi campuran FAME dan minyak solar. Dari data hasil penelitian dan analisis, dapati bahwa semakin kecil equivalence ratio maka temperatur api akan meningkat. Hal ini terjadi karena udara yang ditambahkan dalam proses pembakaran tercampur sempurna dengan bahan bakar, sehingga kalor yang dihasilkan semakin besar dan juga temperatur semakin meningkat. Selain itu juga dapat terlihat bahwa temperatur pada titik 1 lebih tinggi dari pada titik 2. Hal ini menunjukkan bahwa titik 1 merupakan zona pembakaran akhir, dimana bahan bakar telah terbakar habis. Warna nyala api juga akan menjadi semakin biru ketika equivalence ratio semakin kecil.</dc:description>
	<dc:description xml:lang="id-ID">This study aims to determine the effect of adding pure diesel fuel into FAME (Fatty Acid Methyl Ester) in the premixed combustion process, on changes in temperature and flame color. The experiment was carried out by burning a mixture of FAME oil and pure diesel oil, with the mixed &amp;nbsp;percentage of FAME and pure diesel fuel are 70%:30%, 80%:20%, 90%:10%, dan 95%:5%. From the analysis that has been done, it can be concluded that the smaller the equivalence ratio, the temperature will increase. This happens because the air added in the combustion process is perfectly mixed with the fuel, so that the heat generated is greater and the temperature also increases. In addition, it can also be seen that the temperature at point 1 is higher than point 2. This indicates that point 1 is the final combustion zone, where the fuel has burned out. The color of the flame will also become bluer when the equivalence ratio is getting smaller</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-19</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9375</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9375</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 47-52</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 47-52</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9375/4545</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9376</identifier>
				<datestamp>2024-02-01T06:28:17Z</datestamp>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Pengaruh Perlakuan NaOh dan Rendaman Air Tawar terhadap Kekuatan Bending Komposit Serat Limbah Rambut Manusia</dc:title>
	<dc:creator>Adoe, Dominggus Godlief Heryson</dc:creator>
	<dc:description xml:lang="en-US">Penelitian ini dilakukan guna mengetahui pengaruh perlakuan NaOH dan perendaman terhadap kekuatan bending komposit serat limbah rambut manusia. &amp;nbsp;Fraksi volume serat 30%, perlakuan NaOH yang dipakai sebesar 5% &amp;nbsp;sedangkan &amp;nbsp;perendaman &amp;nbsp;yang&amp;nbsp; digunakan &amp;nbsp;adalah&amp;nbsp; perendaman &amp;nbsp;pada &amp;nbsp;air tawar dan air laut. Analisis data hasil pengujian bending dengan memakai standard ASTM D7264. Hasil pengujian yang telah dilakukan pada komposit yang diberi perlakuan NaOH tanpa menggunakan perendaman menghasilkan tegangan bending yang lebih tinggi yaitu 0.245 Mpa dibandingkan dengan komposit yang tanpa perlakuan NaOH dengan jenis perendaman air laut yaitu 0.125 Mpa. Momen bending pada jenis perlakuan NaOH tanpa menggunakan perendaman memiliki nilai momen bending tertinggi yaitu 8.52 Nmm, sedangkan&amp;nbsp; jenis perlakuan tanpa NaOH dengan perendaman &amp;nbsp;air &amp;nbsp;laut memiliki nilai momen bending terendah yaitu 4.36 Nmm. Defleksi tertinggi terjadi pada spesimen dengan jenis perlakuan tanpa NaOH dengan perendaman air tawar yaitu 8.81 mm, sedangkan defleksi terendah terjadi pada spesimen dengan jenis perlakuan NaOH tanpa perendaman yaitu 6.06 mm.</dc:description>
	<dc:description xml:lang="id-ID">This study was conducted to determine the effect of NaOH treatment and immersion on the bending strength of human hair waste fiber composites. 30% fiber volume fraction, NaOH treatment used is 5% while immersion used is immersion in fresh water and sea water. Analysis of data from bending tests using the ASTM D7264 standard. The results of tests that have been carried out on composites treated with NaOH without using immersion produce a higher bending stress which is 0.245 Mpa compared to the composite without NaOH treatment with the type of seawater soaking that is 0.125 Mpa. The bending moment on the type of NaOH treatment without using immersion has the highest bending moment value of 8.52 Nmm, while the type of treatment without NaOH with seawater immersion has the lowest bending moment value of 4.36 Nmm. The highest deflection occurs in specimens with the type of treatment without NaOH with fresh water immersion which is 8.81 mm, while the lowest deflection occurs in specimens with the type of NaOH treatment without immersion is 6.06 mm</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-19</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9376</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9376</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 60-65</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 60-65</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9376/4547</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9389</identifier>
				<datestamp>2024-07-07T12:12:52Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">Studi Eksperimental Efisiensi Rumah Pengering Umbi Porang Sistem Hibrid (Energi Surya–Biomassa) dengan Variasi Beban Pengeringan</dc:title>
	<dc:creator>Gurnawati, Gurnawati</dc:creator>
	<dc:creator>Kameo, Putry P. E.</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:description xml:lang="en-US">Pengeringan adalah salah satu proses tahapan pasca panen yang penting mengingat proses ini menyerap cukup banyak energi. Diperkirakan 12% dari total energi yang digunakan pada industri pangan dan pertanian adalah untuk pengeringan. Salah satu alternatif pengeringan adalah menggunakan Solar Dryer sebagai sarana penangkap energi. Panas yang terakumulasi tersebut dipakai untuk mengeringkan Porang yang berada dalam Solar Dryer. Hasil penelitian menunjukkan bahwa kadar air akhir umbi porang setelah pengeringan per hari untuk tiap variasi beban diperoleh nilai terendah 9,90 %bb pada variasi beban 10 kg dan laju pengeringan tertinggi 0,550 kg/jam dari asumsi kadar air awal 70 %bb. Sedangkan pada variasi beban 8,5 kg (H1) dan 14 kg (H3), kadar air akhirnya masih memenuhi standar yaitu 11,4 %bb dan 10,98 %bb dengan laju pengeringan terendah 0,330 kg/jam (H3). Jika dikaitkan antara distribusi temperature maupun kelembaban udara dalam rumah pengering dengan laju pengeringan, konsumsi energi spesifik (KES), dan efisiensi pengeringan, maka terdapat perbedaan antar variable tersebut. Hal ini menunjukkan hasil perbandingan terbalik antara konsumsi energi spesifik, namun berbanding lurus dengan laju pengeringan dan efisiensi pengeringan</dc:description>
	<dc:description xml:lang="id-ID">Driying is one of the most important post-harvest processes, considering that this process absorbs a lot of energy. It is estimated that 12% of the total energy used in the food industry and agriculture is for drying. The accumulated heat it used to dry the Porang in the Solar Dryer. The results showed that the final moisture content of porang tubers after drying for each load variation obtained the lowest value of&amp;nbsp; 9,90%wb at a loas variation of 10 kg and the highest drying rate of 0,550 kg/hour from the assumption of an initial moisture content of 70%wb. While, at the load variation of 8,5 kg (H1) and 14 kg (H3), the final moisture content still met the standards, namely 11,4% wt and 10,98% wt with the lowest drying rate 0,330 kg/hour (H3). If it is related between the distribution of temperature and humidity in the drying with the drying rate, specific energy consumption (KES), and drying efficiency, then there are differences between these variables. This shows the results of an inverse comparison between specific energy consumption, but is directly proportional to the drying rate and drying efficiency</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-19</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9389</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9389</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 71-78</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 71-78</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9389/4554</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/9390</identifier>
				<datestamp>2024-02-01T06:31:58Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
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	xmlns:dc="http://purl.org/dc/elements/1.1/"
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	<dc:title xml:lang="id-ID">Analisis Pengaruh Penggunaan Arang Aktif Sebagai Adsorben Terhadap Temperatur Nyala Api Gas Bio Dari Feses Sapi</dc:title>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:description xml:lang="en-US">Permasalahan kelangkaan energi merupakan persoalan yang terus berkembang dan diperbincangkan didunia tentang kebutuhan akan sumber energi yang terbarukan yang bersifat ramah lingkungan. Biogas merupakan salah satu energi alternatif sebagai pengganti bahan bakar minyak. Biogas dalam penelitian ini berasal dari feses sapi. Penelitian ini bertujuan untuk mengetahui pengaruh proses pemurnian biogas yang menggunakan arang aktif sebagai adsorben terhadap temperatur nyala api biogas dari feses sapi. Beberapa teknologi pemurnian biogas telah dikembangkan dengan berbagai macam metode, dalam penelitian ini menggunakan teknologi adsorben. Salah satu adsorben yang mudah diperoleh dan ekonomis adalah arang aktif. Pada penelitian ini, dilakukan pemurnian biogas menggunakan arang aktif yang berukuran 60 mesh dengan kapasitas volume arang aktif 1,5 liter dan debit alir gas 1580 l/s yang memvarisikan 3 tabung adsorben dengan ukuran tabung yang berbeda-beda. Hasil penelitian menunjukkan bahwa pemurnian biogas pada tabung III memiliki temperatur yang tinggi dan baik, tinggi nyala api, dan warna nyala api dengan perbedaan pada tabung I, tabung II dan tanpa pemurnian yaitu temperatur nyala api sebesar 701ᵒC, tinggi nyala api 66,4735 mm.</dc:description>
	<dc:description xml:lang="id-ID">The aim of this study is to determine the influence of the biogas purification process with activated carbon as an adsorbent on the flame temperature and the color of the biogas flame from cow dung. In this study, several biogas purification technologies were developed using various methods using adsorbent technology. In this study, a biogas purification was performed using 60 mesh activated carbon with a volume volume of 1.5 liters of activated carbon and a gas flow rate of 1580 l / s, varying 3 adsorbent tubes of different tube sizes. The results showed that the biogas purification in pipe III had a high and good temperature, flame height and flame color with differences in pipe I, pipe II and without cleaning, ie the flame temperature of 701 ° C, flame height 66.4735 mm and the color of the produced Flame is light blue, the quality of the produced biogas is very good. Thus it can be concluded that the comparison of the biogas purification in pipe III has a flame temperature and flame height and flame color which is more optimal than the biogas purification in pipe I, pipe II and without cleaning.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-19</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9390</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9390</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 79-86</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 79-86</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9390/4555</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/9505</identifier>
				<datestamp>2024-02-01T06:32:54Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			<metadata>
<oai_dc:dc
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	<dc:title xml:lang="id-ID">Rancang Bangun Mesin Peniris Minyak Untuk Proses Produksi Abon Ikan</dc:title>
	<dc:creator>Limbong, Ishak S.</dc:creator>
	<dc:creator>Doni, Hendra Bin</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:description xml:lang="en-US">Draining oil on fried foods is traditionally seen as less than optimal. In addition, it takes a longer time, however, the oil content in the food is still relatively high so that the food becomes less durable. This study aims to design and build a prototype of a rotary oil draining machine that utilizes centrifugal force which is able to drain oil faster with better results than the traditional method. The advantage of the design of the oil draining machine in this study is that the materials used to manufacture this machine are quite cheap and more effective than traditional draining machines. The stages of making this machine consist of the stages of designing, manufacturing, assembling and testing the machine. This machine is designed and built with specifications: 55 cm high, 78.5 cm long, 43.5 cm wide and the test results of this shredded fish oil draining machine reach a capacity of 29.50 kg/hour</dc:description>
	<dc:description xml:lang="id-ID">Penirisan minyak pada makanan gorengan secara tradisional dipandang kurang optimal. Selain itu membutuhkan waktu yang lebih lama namun, kadar minyak yang dikandung makanan masih relative tinggi sehingga makanan menjadi kurang awet. Penelitian ini bertujuan merancang dan membangun sebuah prototipe mesin peniris minyak dengan rotari yang memanfaatkan gaya sentrifugal yang mampu melakukan penirisan minyak lebih cepat dengan hasil yang lebih baik dibanding dengan cara tradisional. Kelebihan rancangan mesin peniris minyak dalam penelitian ini adalah bahan atau material yang digunakan untuk pembuatan mesin ini cukup murah dan lebih efektif dibandingkan dengan penirisan secara tradisional. Tahapan pembuatan mesin ini terdiri atas tahap perancangan, manufaktur, perakitan dan pengujian mesin. Mesin ini dirancang dan dibangun dengan spesifikasi: tinggi 55 cm, panjang 78,5 cm, lebar 43,5 cm dan hasil uji coba dari mesin peniris minyak abon ikan ini mencapai kapasitas 29,50 kg/jam</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-21</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9505</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9505</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 91-96</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 91-96</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9505/4667</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/9579</identifier>
				<datestamp>2024-02-01T06:33:45Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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<oai_dc:dc
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	<dc:title xml:lang="id-ID">Produksi Gas HHO melalui Perubahan Polaritas Sumber Listrik DC</dc:title>
	<dc:creator>Mandala, Jani F.</dc:creator>
	<dc:creator>Koehuan, Verdy Ariyanto</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:description xml:lang="en-US">Salah satu bentuk energi yang disubtitusikan adalah produksi gas HHO sebagai zero polutan dengan sumber baku utama air untuk digunakan sebagai bahan bakar mesin pembakaran dalam. Terdapat beberapa metode untuk menghasilkan gas HHO, salah satunya diperlukan reaktor HHO yang berisi cell dari besi anti-karat sebagai elektroda-anoda dan air berupa elektrolizer sebagai katalis produk gas HHO sebagai akibat triger sumber listrik DC. Prinsip kerja ini mendasari untuk memodifikasi produks gas HHO dengan eksperimen material-material dari chassis elektrik dengan kandungan besi anti-karat dan diberi perlakuan PWM 50 herz dutycycle 50 dengan rentang waktu 1 menit hingga terjadi perubahan polaritas sumber&amp;nbsp; DC. Hasil ekperimen menunjukkan rancagan reaktor dengan jumlah plat 13 buah, bekerja pada tegangan 12 volt dan arus 10 ampere dikoneksikan pada plat besi anti-karat sebagai anoda-katoda dan penggunaan elektrolizer (NaHCO3) dapat menghasilkan gas HHO sebanyak 0,151 liter. Hasil gas HHO melalui perlakuan perubahan polaritas dengan waktu rerata 2,42 menit dan efisiensi 10,148% sedangkan tanpa perlakuan perubahan polaritas, waktu rerata 2,39 menit dan efisiensi 10,219%.</dc:description>
	<dc:description xml:lang="id-ID">One form of substituted energy is the production of HHO gas as a zero pollutant with the main raw source being water for use as fuel for internal combustion engines. There are several methods to produce HHO gas, one of which requires an HHO reactor which contains cells made of stainless steel as electrodes and water in the form of an electrolizer as a catalyst for producing HHO gas as a result of triggering a DC power source. This working principle underlies the modification of HHO gas production by experimenting with materials from an electric chassis containing stainless steel and treated with PWM 50 herz dutycycle 50 with a time span of 1 minute until a change in the polarity of the DC source occurs. The experimental results show that the reactor design with 13 plates, working at a voltage of 12 volts and a current of 10 amperes is connected to a stainless steel plate as an anode-cathode and the use of an electrolyzer (NaHCO3) can produce 0.151 liters of HHO gas. The results of HHO gas through polarity change treatment with an average time of 2.42 minutes and an efficiency of 10.148% while without polarity change treatment, an average time of 2.39 minutes and an efficiency of 10.219%.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2022-12-22</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9579</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v9i02.9579</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 9 No 02 (2022): Oktober 2022; 97-104</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 9 No 02 (2022): Oktober 2022; 97-104</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v9i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/9579/4743</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/10402</identifier>
				<datestamp>2023-04-10T03:27:59Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Analisis Kekuatan Sambungan Hybrid Komposit Serat Buah Lontar yang  Diberi Beban Tarik</dc:title>
	<dc:creator>Boimau, Kristomus</dc:creator>
	<dc:creator>Pandango, Frits R.A.</dc:creator>
	<dc:creator>Bale, Jefri</dc:creator>
	<dc:description xml:lang="id-ID">The use of composite materials in a structure must meet the capability and safety criteria. Included in this case is a fixed connection. The fixed type of connection that is most often used in matrix composite materials is the rivet connection and the adhesive connection. Stages of making specimens Initial treatment using chemical treatment. Then the fiber is cut into a size of 5 cm. then the specimens were formed into hybrid joints (kelling and adhesive) and used single lab joint and double strap butt joint types with a thickness of 4 mm, length 240 mm (single lab joint), 270 mm (double strap butt joint), and width 34 mm. then tensile and bending tests are carried out. From the results of the tensile test, it was found that the hybrid joints of palm leaf fibers with single lab joint joints had the largest tensile stress of 7.36 Mpa, tensile strain 0.42%, tensile elastic modulus of 25.4 Gpa. In the type of double strap butt joint connection the tensile stress is 8.08 MPa, the tensile strain is 0.48%, and the tensile modulus is 18 Gpa. Whereas for bending testing, the single lab joint joint type has a bending stress of 0.050 Mpa, a bending modulus of elasticity of 25.01 Gpa, and a bending moment of 4.8 Nmm. In the type of double strap butt joint connection has a bending voltage of 0.021 Mpa, bending elastic modulus of 12.40 Gpa, and bending moment of 5.85 Nmm. The specimen has a brittle fracture</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2019-10-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/10402</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v6i02.10402</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 6 No 02 (2019): Oktober 2019; 1-9</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 6 No 02 (2019): Oktober 2019; 1-9</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v6i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/10402/5011</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/11051</identifier>
				<datestamp>2024-04-30T13:28:32Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Analisis Perubahan Tekanan Udara Perangkat Oscillating Water Column dengan Metode phi-Buchingham</dc:title>
	<dc:creator>Kasi, Paulinus Sargius</dc:creator>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:creator>Gurnawati, Gurnawati</dc:creator>
	<dc:description xml:lang="en-US">ABSTRACT
The increase in human population along with the times and technology must be increasingly difficult to separate from energy needs, one of which is the need for electrical energy. One source of energy that has not been widely utilized is ocean wave energy. Ocean wave power plants basically have a working principle, namely converting ocean wave energy (mechanical energy) into electrical energy. One of the wave energy conversion system technologies is the Oscillating water column (OWC) technology. Technology Oscillating Water Coloumn this, using the air pressure from the watertight chamber to movewells turbine This turbine will then be used to generate electricity. Forms of studies that can be carried out to study the phenomenon of changes in device air pressure Oscillating Water Coloumn is mathematical modeling. One of the mathematical modeling can be done by phi-Buchingham. Using Buckingham's Pi theorem dimensional analysis can make it easier to analyze and make experimental steps faster and more focused.
Keywords: Ocean waves, Oscillating Water Coloumn (OWC), Barometric pressure, phi-Buchingham</dc:description>
	<dc:description xml:lang="id-ID">ABSTRAK
Peningkatan populasi manusia seiring dengan perkembangan zaman dan&amp;nbsp; teknologi pasti semakin sulit dipisahkan dengan kebutuhan energi, Salah satunya adalah kebutuhan terhadap energi listrik. Salah satu sumber energi yang belum banyak di manfaatkan adalah energi gelombang laut. Pembangkit listrik tenaga gelombang laut pada dasarnya memiliki prinsip kerja yaitu mengkonversi energi gelombang laut (energi mekanik) menjadi energi listrik. Salah satu teknologi sistem konversi energi gelombang laut adalah teknologi osilasi kolom air atau Oscillating Water Coloumn (OWC). Teknologi Oscillating Water Coloumn ini, menggunakan tekanan udara dari ruangan kedap air untuk menggerakkan wells turbine yang nantinya pergerakan turbin ini digunakan untuk menghasilkan energi listrik. Bentuk kajian yang dapat dilakukan untuk mempelajari fenomena perubahan tekanan udara perangkat Oscillating Water Coloumn adalah pemodelan matematis. Pemodelan matematis salah satunya dapat dilakukan dengan metode phi-Buchingham. Penggunaan teorema Pi Buckingham untuk Analisis dimensional dapat memudahkan dalam menganalisis dan membuat langkah eksperimen lebih cepat dan terarah.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-05-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11051</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i01.11051</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 01 (2023): April 2023; 35-41</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 01 (2023): April 2023; 35-41</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11051/5482</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/11502</identifier>
				<datestamp>2024-04-30T13:28:32Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
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	<dc:title xml:lang="id-ID">ANALISIS GARIS ALIRAN (STREAMLINE) PADA TURBIN ANGIN SUMBU HORIZONTAL TIPE PROPELER TIGA BLADE ROTOR GANDA DENGAN METODE CFD (COMPULATIONAL FLUID DYNAMICS)</dc:title>
	<dc:creator>Hangge, Fernanda Yusuf</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Bunganaen, Wenseslaus</dc:creator>
	<dc:description xml:lang="id-ID">Tujuan penelitian ini adalah untuk mengetahui pola garis aliran fluida melewati rotor turbin angin sumbu horisontal atau horizontal axis wind turbine (HAWT) tipe propeler tiga blade rotor ganda kontra rotasi (double rotor counter-rotation) melalui metode computational fluid dynamics (CFD). Hasil simulasi CFD rotor turbin CRWT dengan penurunan skala geometri menunjukkan turbin cenderung beroperasi pada TSR rendah. Rotor depan turbin CRWT cenderung beroperasi dengan koefisien daya dan TSR yang lebih tinggi dari rotor belakang. Garis aliran (streamline) pada bidang horizontal arah aksial CRWT mengkonfirmasi pengaruhnya terutama aliran di sekitar permukaan blade terhadap performa CRWT. Garis aliran pada permukaan blade rotor depan dan rotor belakang pada turbin CRWT terhadap penurunan skala geometeri (FC = 0,25 dan 0,26 serta 0,3), dimana turbin beroperasi di TSR rendah sangat berbeda dari CRWT pada skala penuh (FC=1,0). Karena CRWT dengan penurunan factor skala geometri rotor yang membuat turbin beroperasi pada TSR rendah ini menyebabkan terjadinya separasi dan vortex di sekitar permukaan blade yang sangat kuat sehingga terjadi peningkatan gaya hambat dan penurunan gaya angkat. Peningkatan gaya hambat pada blade dapat menyebabkan penurunan torsi yang dibangkitkan oleh rotor turbin yang akibatnya menurunkan daya turbin.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-05-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11502</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i01.11502</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 01 (2023): April 2023; 22-34</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 01 (2023): April 2023; 22-34</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11502/5487</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/11503</identifier>
				<datestamp>2024-02-01T06:08:46Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
			<metadata>
<oai_dc:dc
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	<dc:title xml:lang="id-ID">Simulasi CFD (Compulational Fluid Dynamics) Turbin Angin Sumbu Horizontal Tipe Propeler Tiga Blade Rotor Ganda Melalui Variasi Geometri</dc:title>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Hale, Roybertho Agustinus</dc:creator>
	<dc:creator>Mangesa, Daud P.</dc:creator>
	<dc:description xml:lang="id-ID">Tujuan penelitian ini adalah untuk mengetahui performa turbin angin sumbu horisontal atau horizontal axis wind turbine (HAWT) tipe propeler tiga blade rotor ganda kontra rotasi (double rotor counter-rotation) terhadap variasi geometri rotor CRWT menggunakan metode computational fluid dynamics (CFD). Hasil simulasi CFD rotor turbin CRWT dengan penurunan skala geometri menunjukkan turbin cenderung beroperasi pada TSR rendah. Rotor depan turbin CRWT cenderung beroperasi dengan koefisien daya dan TSR yang lebih tinggi dari rotor belakang. Vektor kecepatan aliran pada bidang vertikal arah aksial CRWT juga dikonfirmasi oleh hasil analisis kontur kecepatan aliran dan kontur turbulent kinetic energy terhadap penurunan performa CRWT karena adanya penurunan faktor skala geometri rotor turbin. Vektor kecepatan pada tip blade antara rotor depan dan rotor belakang pada turbin CRWT dengan penurunan skala geometeri (FC = 0,25 dan 0,26 serta 0,3) yang beroperasi di TSR rendah yang arahnya cenderung menguat menuju ke tip blade dengan besaran vektor yang makin kuat di sisi hisap (suction surface) blade rotor belakang. Besaran vektor ini semakin kuat ini dapat membentuk vorteks yang menurunkan performa CRWT.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11503</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.11503</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 49-60</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 49-60</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11503/6158</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/11510</identifier>
				<datestamp>2024-04-30T13:28:32Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">PERANCANGAN MESIN PENEPUNG DAUN LAMTORO  DENGAN MENGGUNAKAN  METODE VDI 2222</dc:title>
	<dc:creator>Gama, Ronaldo Luis</dc:creator>
	<dc:creator>Bale, Jefri</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:description xml:lang="en-US">The method used in this research is the VDI 2222 method. The process of testing the tool is carried out by turning on the motor, and inputting the lamtoro leaves which will be floured into the tube, the results of the design of the lamtoro leaf powder machine with the VDI 2222 method and the results of the lamtoro leaf flour powder machine test, concluded as follows: Design of a lamtoro leaf crushing machine with engine dimensions, namely: Height 50 cm, Width 30 cm and Length 37 cm, and motor power ¼ hp and uses a belt and pulley transmission, by testing the weight of lamtoro leaves, namely 3000 gr (3 kg) with the required time of 420 minutes, then the flouring process is carried out so that it will produce lamtoro flour with a fineness level of 80 mesh. The design stages using the VDI 2222 method are carried out sequentially which can be adjusted to the needs.</dc:description>
	<dc:description xml:lang="id-ID">Metode yang digunakan dalam penelitian ini yaitu metode VDI 2222. Proses pengujian alat yang dilakukan dengan mennyalakan motor,dan masukan daun lamtoro yang akan di tepungkan ke dalam tabung, hasil perancangan mesin penepung daun lamtoro dengan metode VDI 2222 dan hasil pengujian mesin penepung daun lamtoro, disimpulkan sebagai berikut: Perancangan mesin penepung daun lamtoro dengan dimensi mesin yaitu: Tinggi 50 cm,Lebar 30 cm dan Panjang 37 cm, dan daya motor ¼ hp dan menggunakan transmisi sabuk dan pully,dengan pengujian berat daun lamtoro yaitu 3000 gr (3 kg) dengan waktu yang diperlukan 420 menit, kemudian dilakukanya proses penepungan sehingga akan menghasilkan tepung lamtoro dengan tingkat kehalusan 80 mesh Tahapan perancangan menggunakan metode VDI 2222 dilakukan secara berurutan yang dapat disesuaikan dengan kebutuhan.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-05-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11510</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i01.11510</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 01 (2023): April 2023; 17-21</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 01 (2023): April 2023; 17-21</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11510/5486</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/11667</identifier>
				<datestamp>2024-04-30T13:28:32Z</datestamp>
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	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
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	<dc:title xml:lang="en-US">Analisis Kekuatan Tarik Pada Jenis Sambungan Hybrid Tipe Lap Joint Komposit Serat Widuri</dc:title>
	<dc:creator>Hule, Esau</dc:creator>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:creator>Maliwemu, Erich U.K.</dc:creator>
	<dc:description xml:lang="en-US">This research was conducted to analyze the strength of this hybrid lap joint type of thistle fiber composite due to tensile loading. The hybrid connection types used are bolted and adhesive connections. Thistle fiber composite has a volume fraction of 30 % and fiber length is 5 mm. To produce a bolted connection, the composite is perforated by drilling. Then it is connected with adhesive to become a hybrid connection. Specimen sizes follow ASTM D5961 standards. In addition to the type of hybrid connection above, the distance of the holes in this connection also varies. From the tensile test results obtained at a hole spacing of 16 mm has a stress of 5.9 MPa, a strain of 0.088 % and a modulus of elasticity of 7.959 GPa. The composite with a hole spacing of 36 mm has a stress of 7.2 MPa, a strain of 0.126 % and a modulus of elasticity of 6.068 GPa. The composite with a hole spacing of 56 mm has a stress of 5.6 MPa, a strain of 0.064 %, and a modulus of elasticity of 10.136 GPa.&amp;nbsp;</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-05-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11667</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i01.11667</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 01 (2023): April 2023; 8-16</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 01 (2023): April 2023; 8-16</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11667/5488</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/11670</identifier>
				<datestamp>2024-04-30T13:28:32Z</datestamp>
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			</header>
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	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">ANALISIS SIFAT FISIK DAN SIFAT MEKANIK BATU KARANG DI KUPANG</dc:title>
	<dc:creator>Letto, Robby</dc:creator>
	<dc:creator>Pell, Yeremias M.</dc:creator>
	<dc:creator>Bunganaen, Wenseslaus</dc:creator>
	<dc:description xml:lang="en-US">Coral is a natural potential that has not been exploited on a large scale and in this study aims to analyze the physical properties and mechanical properties of coral in Kupang city. and useful for development activities to be safer and smoother. Tools and materials used to analyze the physical properties and mechanical properties of coral such as m esin uji t ekan m ortal, g erinda, m ata p isau p otong keramic, m ata gerinda p smear , betta esi(Ragum), jfigure sfunnel. , the material is in the form of Coral. And all calculations against the compressive strength of the rock.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-05-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11670</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i01.11670</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 01 (2023): April 2023; 1-7</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 01 (2023): April 2023; 1-7</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11670/5484</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana (LJTMU )</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/11986</identifier>
				<datestamp>2024-04-30T13:28:32Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
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			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Eksperimen Rumah Pengering Ikan Sarden Model Ultra Violet (UV) Solar Dryer Kombinasi dengan Sistem Solar Air Heater Melalui Variasi Kecepatan   Udara Keluar</dc:title>
	<dc:creator>Punuf, Rolandi</dc:creator>
	<dc:creator>Riwu, Defmit B.N.</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:description xml:lang="id-ID">The technique for preserving a new product is by using a drying technique. The development and utilization of solar energy must continue to be developed with several technologies including the Solar Air Heater. The research method used was an experimental method on Ultra-Violet solar dryer drying houses for drying sardines with additional absorption of solar radiation heat using a solar air heater system. This configuration works by drawing air from the building envelope or from the outside environment and passing it through a collector where the air is warmed by conduction and convection in the absorber. The analysis of this study is regarding the velocity of the airflow coming out of the drying chamber, namely 1.0 m/s, 1.5 m/s and 1.8 m/s, while the airflow velocity in the solar panel (exhaust fan) is 3.5 m/s (constant). The results of the study show that the addition of heat through the solar air heater panel can speed up the drying process in the drying chamber. The temperature difference in the solar panel increases the heat absorbed through the hot air flow which also increases the efficiency of the solar panel. The highest efficiency of the drying house is 48.05 % occurring at the outlet air flow rate of 1.8 m/s. The temperature difference in the drying chamber and the increased ambient air tends to increase the efficiency of the drying chamber where in this study the highest value of 48.05% was obtained at a speed of 1.8 m/s</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-05-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11986</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i01.11986</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 01 (2023): April 2023; 42-55</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 01 (2023): April 2023; 42-55</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11986/5483</dc:relation>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/11989</identifier>
				<datestamp>2024-04-30T13:28:32Z</datestamp>
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			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Studi Pengaruh Perlakuan KOH Terhadap Kekuatan Tarik Komposit Serat Rami</dc:title>
	<dc:creator>Lado, Putra E.</dc:creator>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Pah, Jack C.A.</dc:creator>
	<dc:description xml:lang="id-ID">Currently, natural fiber composites have become the main choice for several industrial applications in the world. The strength of natural fibers such as hemp is based on laboratory results of mechanical strength testing which show that hemp has very suitable properties as a reinforcing composite for prosthetic socket materials. The tensile test is a mechanical stress-strain test that aims to determine the strength of a material against tensile forces. In the test, the test material is pulled until it breaks. Tensile testing is carried out to look for stress and strain (stress-strain test). From this test, we can know some of the mechanical properties of materials that are needed in engineering design. The results of research conducted on the study of the effect of KOH treatment on the tensile strength of hemp fiber composites show three things. First, the highest tensile stress value in hemp fiber was found in the 2% KOH treatment with a long soaking time of 2 hours with a value of 25.3 MPa. Second, the lowest tensile strain value in hemp fiber was found in the 6% KOH treatment with a long soaking time of 2 hours with a value of 0.1%. Third, the highest modulus of elasticity in hemp fiber was found in 6% KOH treatment with a 1-hour soaking time with a value of 47.1 MPa</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-05-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11989</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i01.11989</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 01 (2023): April 2023; 56-61</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 01 (2023): April 2023; 56-61</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/11989/5489</dc:relation>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/12022</identifier>
				<datestamp>2026-01-15T13:02:03Z</datestamp>
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				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	<dc:title xml:lang="en-US">OPTIMIZATION OF CASTING CELLING MACHINE WITH AUTOMATIC RAW MATERIAL DRIVING MECHANISM</dc:title>
	<dc:title xml:lang="id-ID">OPTIMASI MESIN PERAJANG SINGKONG DENGAN MEKANISME PENDORONG BAHAN BAKU OTOMATIS</dc:title>
	<dc:creator>Runesi, Altruis Krisman</dc:creator>
	<dc:creator>Mangesa, Daud P.</dc:creator>
	<dc:creator>Selan, Rima Nindia</dc:creator>
	<dc:description xml:lang="en-US">ABSTRACT
Cassava is one of the agricultural commodities spread across most parts of Indonesia, especially in the province of NTT. The abundant potential makes cassava a staple food for the people of East Nusa Tenggara. UD. ML is a company that produces and markets cassava chips to meet the needs of the people of Kupang and its surroundings. During the cassava chips production process, the tools used are still using manual choppers with human power, so that it can cause defective products to be produced, such as errors in cutting that are not too thin or thick and the pieces are destroyed because they are too thin and worker fatigue when chopping cassava . The research method used in this study is the experimental method, observation and literature study. From the test results, it was found that the chopping capacity at blade setting A was 660 grams, knife B was 740 grams, and knife C was 800 grams, with a thickness of 1-3mm.
&amp;nbsp;</dc:description>
	<dc:description xml:lang="id-ID">ABSTRAK
Singkong merupakan salah satu komoditi pertanian yang tersebar di sebagian besar wilayah Indonesia khususnya di provinsi NTT. Potensi yang melimpah membuat singkong menjadi salah satu makanan pokok masyarakat Nusa Tenggara Timur. UD. ML merupakan salah satu perusahaan yang memproduksi dan memasarkan keripik singkong untuk memenuhi kebutuhan masyarakat kota kupang dan sekitarnya. Pada saat proses produksi keripik singkong alat yang digunakan masih menggunakan perajang manual dengan tenaga manusia, sehingga dapat menyebabkan adanya produk cacat yang dihasilkan, Seperti kesalahan dalam memotong yang tidak terlalu tipis atau tebal dan hancurnya hasil potongan karena terlalu tipis serta kelelahan pekerja pada saat merajang singkong. Metode penelitian yang digunakan dalam penelitian ini adalah metode eksperimen, observasi dan studi pustaka. Dari hasil pengujian, didapatkan kapasitas hasil rajangan pada pengaturan mata pisau A sebesar 660 gram, pisau B 740 gram, dan pisau C 800 gram, dengan ketebalan hasil irisan 1-3mm.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2025-04-29</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/12022</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v12i01.12022</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 12 No 01 (2025): April 2025; 84-88</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 12 No 01 (2025): April 2025; 84-88</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v12i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/12022/8634</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2025 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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		<record>
			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/12245</identifier>
				<datestamp>2024-11-05T05:45:16Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">SIMULASI KINERJA BATCH AIR BLAST FREEZER DENGAN MENGGUNAKAN SISTEM REFRIGERAN R404A DAN R1234YF</dc:title>
	<dc:creator>Senu, Stefanus Stef</dc:creator>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:description xml:lang="en-US">Performance simulation on air blast freezer batches using two types of refrigerants, namely R404A and R123yf. Air blast freezer is a device used in the food and beverage processing industry to cool products quickly by utilizing cold air generated by convection cooling, modeling and simulation of air blast freezer batch systems using computer modeling software. Important variables considered in the simulation include cooling chamber size, airflow velocity, air distribution, and product geometry characteristics. then performed performance analysis using both refrigerants, R404A and R123yf.
The use of R123yf refrigerant as an alternative to R404A can also provide guidance in the selection of more environmentally friendly refrigerants without sacrificing system performance. With improved product efficiency and quality, food and beverage processing industries can optimize refrigeration processes and increase their overall productivity.</dc:description>
	<dc:description xml:lang="id-ID">Simulasi kinerja pada batch air blast freezer dengan menggunakan dua jenis refrigeran, yaitu R404A dan R123YF. Air blast freezer merupakan perangkat yang digunakan dalam industri pengolahan makanan dan minuman untuk mendinginkan produk secara cepat dengan memanfaatkan udara dingin yang dihasilkan oleh pendinginan secara konveksi, dilakukan pemodelan dan simulasi sistem batch air blast freezer menggunakan perangkat lunak pemodelan komputer. Variabel-variabel penting yang dipertimbangkan dalam simulasi tersebut meliputi ukuran ruang pendingin, kecepatan aliran udara, distribusi udara, dan karakteristik geometri produk. kemudian dilakukan analisis kinerja menggunakan kedua refrigeran, R404A dan R123yf.
&amp;nbsp;Penggunaan refrigeran R123yf sebagai alternatif R404A juga dapat memberikan panduan dalam pemilihan refrigeran yang lebih ramah lingkungan tanpa mengorbankan kinerja sistem. Dengan peningkatan efisiensi dan kualitas produk, industri pengolahan makanan dan minuman dapat mengoptimalkan proses pendinginan dan meningkatkan produktivitas mereka secara keseluruhan.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2024-05-28</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/12245</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v11i01.12245</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 11 No 01 (2024): April 2024; 65-75</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 11 No 01 (2024): April 2024; 65-75</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v11i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/12245/6951</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2024 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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		<record>
			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/13275</identifier>
				<datestamp>2024-02-01T06:04:19Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">Pengaruh Penggunaan Sistem Sekat Dalam Box Portable Atmospheric Water Generator Terhadap Unjuk Kerja Produksi Air, Efisiensi, COP, Pawg Sistem Alami</dc:title>
	<dc:creator>Suparlan, Maria D.C.</dc:creator>
	<dc:creator>Jafri, Muhamad</dc:creator>
	<dc:creator>TARIGAN, Ben Vasco</dc:creator>
	<dc:description xml:lang="en-US">2.1 billion people can’t have access to water, and 4.5 billion with insufficient sanitation or clean water sources. While water is extremely useful for everyday, such as washing, cooking, bathing etc. So fulfillment of water needs must &amp;nbsp;balanced with increase the addition of population can be fulfilled. this study, was carried out experimentally by testing on 2 variations media, media test with insulation and media test without insulation, at 30 minutes intervals, temperature was measured in box to identify factors affect condensation process at several points. Obtained from research analyze effect using partition system on PAWG indications for water production, efficiency, COP, natural PAWG systems for fresh water production within 24 hours from 2 variations of media and maximum Coefficient of Performance. Water amount &amp;nbsp;production for 24 hour, the variation of &amp;nbsp;media with changes in temperature and good COP is found in variation &amp;nbsp;media with insulation, the highest temperature is 36.750C, the humidity value 66.3% and COP value 0.230769 and amount water production is 16 ml, and temperature change in variation of &amp;nbsp;media without insulation with the highest temperature is 39.50C, humidity is 65.4% with a COP value 0.02 and the amount of water production is 12 ml.</dc:description>
	<dc:description xml:lang="id-ID">Secara global, jumlah penduduk yang kekurangan akses terhadap air sekitar 2,1 miliar, sementara 4,5 miliar penduduk memiliki sanitasi dan sumber air bersih yang tidak memadai. Kita ketahui bahwa Air sangat bermanfaat bagi kehidupan sehari-hari, seperti mencuci, memasak, mandi, dll. Sehingga pemenuhan kebutuhan air harus seimbang dengan taraf penambahan jumlah penduduk agar bisa tercukupi. Dalam penelitian ini dilakukan secara eksperimen dengan pengujian pada 2 variasi media uji yaitu media uji dengan sekat dan media uji tanpa sekat, dengan interval waktu 30 menit, temperatur diukur dalam box untuk mengidentifikasi faktor-faktor yang mempengaruhi proses kondensasi pada beberapa titik. Hasil untuk produksi air tawar dalam waktu 24 jam dari 2 variasi media uji dan Coefficient Of Performance yang maksimal. Jumlah produksi air untuk 24 jam ialah, variasi media uji dengan perubahan temperatur dan COP&amp;nbsp; yang baik terdapat pada variasi media uji dengan sekat&amp;nbsp; yaitu temperatur tertingginya 36.750C, untuk nilai kelembabannya 66.3% dan nilai COP yaitu sebesar 0.230769 dan jumlah produksi air sebesar 16 ml, dan perubahan temperatur pada variasi media uji tanpa sekat dengan temperatur tertinggi yaitu sebesar 39.50C, kelembabannya 65.4% dengan nilai COP&amp;nbsp; yaitu sebesar 0.02 dan jumlah produksi air yaitu sebesar 12 ml.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-12-16</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/13275</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.13275</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 8-14</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 8-14</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/13275/6150</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/13435</identifier>
				<datestamp>2024-02-01T06:05:22Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">CHARACTERIZATION OF PYROLYSIS OIL PRODUCED FROM POLYPROPYLENE (PP) PLASTIC BASED</dc:title>
	<dc:title xml:lang="id-ID">Karakterisasi Minyak Hasil Pirolisis Berbahan Dasar Limbah Plastik Jenis Polypropylene (PP)</dc:title>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Satria, Devi Yola</dc:creator>
	<dc:creator>Sanusi, Arifin</dc:creator>
	<dc:description xml:lang="en-US">This research was conducted to determine the characteristics of plastic waste pyrolysis oil and compare it with the characteristics of gasoline. The things studied included the physical and chemical properties of pyrolysis oil. The physical properties studied included viscosity and density, while the chemical properties were the heating value. The research was conducted using Polypropylene (PP) plastic, the reactor used was a single reactor with the reactor temperature set at 300 and 3500C. The results showed that the calorific value of pyrolysis oil was 0.194068464 J – 0.209067264 J, the density was 0.7941 – 0.8083 kg/l and the viscosity was 0.9500151572 cPs - 0.9651967743 cPs.</dc:description>
	<dc:description xml:lang="id-ID">Penelitian ini dilakukan untuk mengetahui karakteristik minyak pirolisis sampah plastik dan membandingkannya dengan karakteristik dari bensin. Hal yang diteliti meliputi sifat fisik dan kimia minyak pirolisis, Sifat fisik yang diteliti meliputi viskositas dan massa jenis, sedangkan sifat kimia adalah nilai kalor. Penelitian dilakukan menggunakan plastik Polypropylene (PP), reaktor yang digunakan adalah reaktor tunggal dengan temperatur reaktor diatur pada suhu 300 dan 3500C. Hasil penelitian menunjukkan bahwa nilai kalor minyak pirolisis yaitu 0,194068464 J – 0,209067264 J, massa jenis yaitu 0,7941 – 0,8083 kg/l dan viskositas yaitu 0,9500151572 cPs - 0,9651967743 cPs.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/13435</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.13435</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 15-22</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 15-22</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/13435/6151</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/13481</identifier>
				<datestamp>2024-02-22T04:04:30Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">Pembuatan Komposit  Matrik Aluminium Diperkuat Silicon Carbida Dan Rice Husk Ash Dengan Metode Metalurgi Serbuk</dc:title>
	<dc:creator>Dylan, Arise Graafian</dc:creator>
	<dc:creator>Sugiyarto, Sugiyarto</dc:creator>
	<dc:creator>Wanto, Agus</dc:creator>
	<dc:creator>Budi, Abdul</dc:creator>
	<dc:creator>Sukanto, Sukanto</dc:creator>
	<dc:description xml:lang="en-US">Brake lining components that contain asbestos are dangerous for human health, so innovation materials environmentally friendly is needed. This research aims to determine the effect of volume fraction and sintering temperature to density and hardness of recycled aluminum matrix composites, reinforced with silicon carbide and rice husk ash using the powder metallurgy method, with varying reinforcement volume fractions 10%, 15%, and 20%. The powder mixing process uses a mechanical alloying method, while the hot compaction process uses a two-way pressing method with a hydraulic pump machine compaction pressure of 6000 PSi. The sintering temperature was varied at 550°C, 580°C, 610°C. Density testing refers to Archimedes' law with the ASTM B 962-17 standard, while hardness testing uses Portable Brinel with the ASTM E110-14 standard. The density and hardness test results show that the value increases with the amount of matrix used. For samples volume fraction 90%, the highest density value is 1.72 g/cm3 and the highest hardness value is 40HB. Based on microstructural analysis, this condition occurs because the relatively low duration of the powder mechanical alloying process has resulted in agglomeration of the reinforcing powder, and the impact interlocking bond becomes lower with increasing reinforcing powder used.</dc:description>
	<dc:description xml:lang="id-ID">Kampas rem yang mengandung asbestos sangat berbahaya bagi kesehatan manusia, sehingga diperlukan inovasi material yang lebih ramah lingkungan. Penelitian ini bertujuan untuk mengetahui pengaruh fraksi volume dan suhu sintering terhadap densitas dan kekerasan komposit matriks aluminium daur ulang, dengan penguat paduan antara silikon carbida dan abu sekam padi dengan metode metalurgi serbuk, dengan variasi fraksi volume penguat sebesar 10%, 15%,dan 20%. Proses pencampuran serbuk digunakan metode pemaduan mekanik dengan mesin ball mill horizontal, sedangkan proses kompaksi panas digunakan metode dua arah penekanan dengan mesin pompa hidrolik yang dilengkapi dengan alat pembaca tekanan pada tekanan kompaksi 6000 PSi. Temperatur sintering divariasikan pada suhu 550 °C, 580 °C, 610 °C. Pengujian densitas mengacu hukum Archimedes dengan standar ASTM B 962-17, sedangkan pengujian kekerasan menggunakan Brinel Portabel dengan standar ASTM E110-14. Hasil uji densitas dan kekerasan menunjukkan nilai semakin meningkat dengan banyaknya matriks yang digunakan. Sampel dengan fraksi volume 90%, nilai densitasnya tertinggi adalah 1,72 g/cm3 dan nilai kekerasan tertinggi adalah 40 HB. Berdasarkan analisis struktur mikro, kondisi ini terjadi dikarenakan durasi proses pemaduan mekanik serbuk yang relatif rendah telah mengakibatkan terjadinya penggumpalan serbuk penguat, dan berdampak pada ikatan interlocking semakin rendah dengan meningkatnya serbuk penguat yang digunakan.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/13481</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.13481</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 61-68</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 61-68</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/13481/6162</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/13648</identifier>
				<datestamp>2024-02-01T06:05:57Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">Studi Eksperimen dan Simulasi Termodinamika Mini Refrigerator</dc:title>
	<dc:creator>Dama, Firdaut Loja</dc:creator>
	<dc:creator>Adoe, Dominggus G. H.</dc:creator>
	<dc:creator>Dwinanto, Matheus Magnus</dc:creator>
	<dc:description xml:lang="en-US">Household refrigeration machines (fridges) are household appliances that are widely used in families in Indonesia. However, the use of working fluids still uses this type of working fluid which causes thinning of the ozone layer and global warming. Therefore, this research aims to analyze the effect of evaporation temperature on work coefficient and exergy efficiency by using R600a working fluid as an environmentally friendly fluid. This research uses experimental and simulation methods using Cooltols software. The research results show that increasing the evaporation temperature has an impact on increasing the work coefficient, the heat absorbed by the evaporator but reducing the compressor power, and the heat released by the condenser. The greatest increase in exergy destruction is found in the evaporator, where exergy efficiency increases. So R600a is very suitable for use in refrigerators.</dc:description>
	<dc:description xml:lang="id-ID">Mesin pendingin rumah tangga refrigerator (lemari es) merupakan peralatan rumah tangga yang banyak dipakai dalam keluarga di Indonesia. Namun penggunaan fluida kerja masih menggunakan jenis fluida kerja menimbulkan penipisan lapisan ozon dan pemanasan global. Oleh karena itu, penelitian in bertujuan untuk menganalisis pengaruh temperatur evaporasi terhadap koefisien kerja dan efisiensi eksergi dengan menggunakan fluida kerja R600a sebagai fluida yang ramah lingkungan. Penelitian ini menggunakan metode eksperimen dan simulasi dengan menggunakan perangkat lunak Cooltols. Hasil penelitian menunjukan dengan peningkatan temperatur evaporasi berdampak pada peningkatan koefisien kerja, kalor yang diserap evaporator tetapi menurunkan daya kompresor, dan kalor yang dilepas kondensor. Peningkatan penghancuran eksergi paling besar terdapat di evaporator serta efisiensi eksergi semakin meningkat. Sehingga R600a sangat cocok digunakan pada lemari es.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/13648</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.13648</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 23-28</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 23-28</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/13648/6153</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/14076</identifier>
				<datestamp>2025-08-13T16:07:33Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
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	<dc:title xml:lang="id-ID">Uji Kinerja Mesin Perajang Singkong  Menggunakan Mekanisme Pengumpan Otomatis</dc:title>
	<dc:creator>Mantutu, Anggi R.</dc:creator>
	<dc:creator>Mangesa, Daud P.</dc:creator>
	<dc:creator>Tobe, Adi Yermia</dc:creator>
	<dc:description xml:lang="en-US">This research focuses on testing the performance of the cassava chopper machine using an automatic feeder mechanism that is applied to the cassava chopper machine to speed up the production process and improve product quality. The purpose of this research wants knowing the working principle of the cassava chopper using an automatic feeder, knowing the performance capacity of the cassava chopper using an automatic feeder, knowing the percentage of damage to the chopper and the value of the thickness of the chopper at one time of the chopping process. The research method used is a type of engine performance testing. Namely observing, measuring and calculating the performance testing of the cassava chopper machine. In collecting data for the calculation of chopping capacity and thickness of the sliced product, it was carried out by preparing 9 kg of cassava and the test was carried out 9 times using variations in the angle of the blade and 1 minute for each test. From the test results, it was found that the chopping capacity at blade setting A was 55.68 kg/hour, knife B was 57.48 kg/hour, and knife C was 59.34 kg/hour, with a slice thickness of 1-3mm.</dc:description>
	<dc:description xml:lang="id-ID">Penelitian ini berfokus pada pengujian kinerja mesin perajang singkong menggunakan mekanisme pengumpan otomatis yang diaplikasikan pada mesin perajang singkong guna mempercepat proses produksi dan meningkatkan mutu atau kualitas produk. Tujuan penelitian ini ingin mengetahui prinsip kerja mesin perajang singkong menggunakan pengumpan otomatis, mengetahui kapasitas kinerja mesin perajang singkong menggunakan pengumpan otomatis, mengetahui presentase kerusakan hasil rajangan dan nilai ketebalan hasil perajangan dalam satu waktu proses perajangan. Metode penelitian yang digunakan adalah jenis pengujian kinerja mesin. Yaitu melakukan pengamatan, pengukuran serta penghitungan pengujian kinerja dari mesin perajang singkong. Dalam pengambilan data untuk perhitungan kapasitas perajangan dan ketebalan hasil irisan dilakukan dengan menyiapkan singkong 9 kg dan pengujian dilakukan 9 kali menggunakan variasi kemiringan sudut mata pisau dan waktu 1 menit tiap pengujian. Dari hasil pengujian, didapatkan kapasitas hasil rajangan pada pengaturan mata pisau A sebesar 55,68 kg/jam, pisau B 57,48 kg/jam, dan pisau C 59,34 kg/jam, dengan ketebalan hasil irisan 1-3mm.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2024-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14076</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v11i02.14076</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 11 No 02 (2024): Oktober 2024; 41-46</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 11 No 02 (2024): Oktober 2024; 41-46</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v11i02</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14076/7508</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2025 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/14082</identifier>
				<datestamp>2024-11-05T05:45:16Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Pengujian Skala Laboratorium Performa Rotor Turbin Angin Ganda Kontra-Rotasi Melalui Variasi Rasio Geometri</dc:title>
	<dc:creator>PAE, KOSTAN</dc:creator>
	<dc:creator>Koehuan, Verdy A.</dc:creator>
	<dc:creator>Gurnawati, Gurnawati</dc:creator>
	<dc:description xml:lang="en-US">The aim of this research is to determine the performance of a double rotor counter-rotation wind turbine on the geometric configuration of the CRWT rotor ratio. Tests were carried out on a laboratory scale with a turbine rotor blade model using the S826 airfoil series issued by NREL (National Renewable Energy Laboratory), where the rotor diameter at field scale (full scale) was 0.944 m. The blade is made through a 3D printing process using PLA (polylactic acid) material with an S826 airfoil profile. Laboratory scale testing uses a wind tunnel with test section dimensions of 0.6 m long, 0.3 m wide and 0.3 m high and the wind speed is considered uniform, varying from 3 m/s to 5 m/s. The performance of CRWT with rotor geometry ratio D1/D2 &amp;lt; 1 is better than CRWT with rotor geometry ratio D1/D2 &amp;gt; 1 at rotor distance Z/D1= 0.4. Varying the turbine geometry ratio with a smaller front rotor diameter, the power coefficient of the front rotor turbine is higher than the turbine with a larger front rotor diameter.</dc:description>
	<dc:description xml:lang="id-ID">Tujuan penelitian ini adalah untuk mengetahui performa turbin angin rotor ganda kontra rotasi (double rotor counter-rotation) terhadap konfigurasi rasio geometri rotor CRWT. Pengujian dilakukan pada skala laboratorium dengan model blade rotor turbin menggunakan seri airfoil S826 yang dikeluarkan oleh NREL (National Renewable Energy Laboratory), dimana diameter rotor pada skala lapangan (full scale) adalah 0,944 m. Blade dibuat melalui proses 3D printing menggunakan material PLA (polylactic acid) dengan profil airfoil S826. Pengujian skala laboratorium menggunakan terowongan angin dengan dimensi seksi uji panjang 0,6 m, lebar 0,3 m dan tinggi 0,3 m serta kecepatan angin dianggap seragam yang divariasikan mulai dari kecepatan 3 m/s hingga 5 m/s. peforma CRWT dengan rasio geometri rotor D1/D2 &amp;lt; 1 lebih baik dari CRWT dengan rasio geometri rotor D1/D2 &amp;gt; 1 pada jarak rotor Z/D1= 0,4. Variasi rasio geometri turbin dengan diameter rotor depan lebih kecil, koefisien daya turbin rotor depannya lebih tinggi dari turbin dengan diameter rotor depan lebih besar.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2024-05-28</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14082</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v11i01.14082</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 11 No 01 (2024): April 2024; 53-64</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 11 No 01 (2024): April 2024; 53-64</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v11i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14082/6887</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2024 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/14107</identifier>
				<datestamp>2024-02-01T06:02:36Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
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<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
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	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="id-ID">Rancang Bangun Alat Pencetak Briket Dengan Sistem Hidrolik</dc:title>
	<dc:creator>Nafie, Andri</dc:creator>
	<dc:creator>Jasron, Jahirwan Ut</dc:creator>
	<dc:creator>Tobe, Adi Y.</dc:creator>
	<dc:description xml:lang="en-US">&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; Briquettes are an alternative energy source to replace dependence on fossil fuels such as kerosene. However, in the process of making briquettes, there are still obstacles. The printing process still uses traditional methods, and the existing briquette printing equipment is also not equipped with a hydraulic system and pressure gauge, so it requires more printing time. It cannot know how much pressure is applied during printing. A briquette printing machine equipped with a hydraulic system and pressure gauge is needed to simplify the briquette printing process and save energy. The purpose of designing this briquette printing machine is to produce a press machine design with a hydraulic system equipped with a pressure gauge. The design method used in this research is an experiment using the Shigley-Mitchell method. The results of the analysis of the maximum stress of the material for 150 kg pressure on the frame 2,565x107 N/m2, the press cylinder 1,932x106 N/m2, the upper press piston 8,830x102 N/m2, the lower plunger piston 2,392x107 N/m2, and the maximum stress for the loading pressure on the connecting lever 1,433x107 N/m2, the pressing lever 2,873x108 N/m2, the material yield strength value 6,204 x 108 N/m2.&amp;nbsp;</dc:description>
	<dc:description xml:lang="id-ID">Briket merupakan sumber energi alternatif untuk menggantikan ketergantungan kebutuhan bahan bakar fosil seperti minyak tanah. Namun pada proses pembuatan briket masih terdapat kendala yaitu proses pencetakan masih menggunakan cara tradisional dan alat pencetak briket yang sudah adapun juga belum dilengkapi dengan sistem hidrolik dan pengukur tekanan sehingga membutuhkan waktu pencetakan yang lebih dan tidak dapat mengetahui berapa tekanan yang diberikan pada saat pencetakan. Sebuah mesin pencetak briket yang dilengkapi dengan sistem hidrolik dan pengukur tekanan dibutuhhkan sebagai sarana untuk mempermudah proses pencetakan briket dan menghemat tenaga. Tujuan perancangan mesin pencetak briket ini yaitu menghasilkan suatu rancangan mesin pres dengan sistem hidrolik yang dilengkapi dengan pengukur tekanan. Metode perancangan yang digunakan dalam penelitian ini yaitu experimen dengan menerapkan metode Shigley-Mitchell. Hasil analisis tegangan maksimum material untuk tekanan 150 kg pada rangka 2.565x107 N/m2,Silinder pres 1.932x106 N/m2,Piston pres atas 8.830x102 N/m2,Piston pendorong bawah 2.392x107 N/m2, dan tegangan maksimum untuk tekanan pembebanan pada tuas penghubung 1.433x107 N/m2, tuas penekan 2.873x108 N/m2, Nilai yield strenght material 6.204 x 108 N/m2. Alat pencetak briket dengan sistem hidrolik ini memiliki panjang 350 mm, lebar 450 mm dan tinggi 840 mm, dalam sekali pencetakan alat pencetak briket ini dapat menghasilkan briket per jamnya yaitu 148 briket.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14107</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.14107</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 1-7</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 1-7</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14107/6149</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/14118</identifier>
				<datestamp>2024-02-01T06:11:57Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/
	http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="id-ID">Modifikasi Dinding Bentur Dan Perlakuan Awal Pada Alat Pemecah Kemiri</dc:title>
	<dc:creator>Manoh, Luter Imanuel</dc:creator>
	<dc:creator>Pell, Yeremias M</dc:creator>
	<dc:creator>Selan, Rima Nindia</dc:creator>
	<dc:description xml:lang="id-ID">Masalah yang dihadapi para petani adalah pada pemecah cangkang kemiri yang dibuat sebelumnya masih memiliki kekurangan yaitu dari segi produksi, Proses pemecahan biji kemiri biasanya dilakukan oleh masyarakat secara konvensional yaitu menggunakan palu karet, dari prinsip kerjanya secara manual tentu cara ini tidak terlalu efektif dari sisi tenaga dan waktu. Oleh karena itu sudah dirancang mesin pemecah cangkang kemiri secara mekanik, agar proses produksi bisa berlangsung dengan produksinya yang lebih besar. Hal ini perlu di modifikasi dinding bentur dan perlakuan awal pada alat pemecah kemiri sehingga memperoleh hasil yang lebih baik yaitu isi kemiri utuh diharapkan lebih banyak dari isi kemiri yang hancur.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14118</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.14118</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 77-85</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 77-85</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14118/6183</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>
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			<header>
				<identifier>oai:ejurnal.undana.ac.id:article/14231</identifier>
				<datestamp>2024-02-01T06:06:28Z</datestamp>
				<setSpec>LJTMU:ART</setSpec>
				<setSpec>driver</setSpec>
			</header>
			<metadata>
<oai_dc:dc
	xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	<dc:title xml:lang="en-US">Study of the Effect of Evaporation Temperature on the Performance of the Organic Rankine Cycle Using R245FA and R515A</dc:title>
	<dc:title xml:lang="id-ID">Studi Pengaruh Temperatur Evaporasi Terhadap Kinerja Siklus Rankine Organik Menggunakan Fluida Kerja R245FA Dan R515A</dc:title>
	<dc:creator>Dwinanto, Matheus Magnus</dc:creator>
	<dc:description xml:lang="en-US">Nowadays, many power plants with the organic Rankine cycle (ORC) have been widely used in the world because they can utilize low temperature heat sources such as industrial waste heat, biomass, geothermal and solar energy. The working fluid for the ORC system must meet several physical property criteria including, environmentally friendly, non-flammable, non-toxic, and non-corrosive. Therefore, this study aims to analyze the effect of evaporation temperature on the energy performance of a standard organic Rankine cycle with a turbine power of 20 kW with working fluids R245fa and R515A. System simulation using Genetron Properties software with the condensation temperature maintained constant at 40oC and the evaporation temperature varied at 70 – 80oC. The results of this study show that increasing the evaporation temperature will greatly increase pumping power consumption but reduce the pressure ratio in the turbine and the thermal efficiency of the system. The pumping power used to circulate R515A is ±2.2 times higher than circulating R245FA but the thermal efficiency is ±9.75% higher.</dc:description>
	<dc:description xml:lang="id-ID">Dewasa ini banyak pembangkit listrik dengan siklus Rankine organik (organic Rankine cycle/ORC) telah banyak digunakan di dunia karena dapat memanfaatkan sumber kalor bertemperatur rendah seperti limbah kalor industri, biomassa, geothermal, dan energi surya.&amp;nbsp; Fluida kerja untuk sistem ORC harus memenuhi beberapa kriteria sifat fisik diantaranya, ramah lingkungan, tidak mudah terbakar, tidak beracun, dan tidak korosif. Oleh karena itu, penelitian ini bertujuan untuk menganalisis pengaruh temperatur evaporasi terhadap kinerja energi siklus Rankine organik standar berdaya turbin 20 kW dengan fluida kerja R245fa, dan R515A. Simulasi sistem menggunakan perangkat lunak Genetron Properties dengan temperatur kondensasi dipertahankan konstan pada 40oC dan temperatur evaporasi divariasikan pada 70 – 80oC. Hasil studi ini menunjukkan bahwa peningkatan temperatur evaporasi akan sangat berdampak pada meningkatnya konsumsi daya pemompaan tetapi menurunkan rasio tekanan di turbin, dan efisiensi termal sistem. Daya pemompaan yang digunakan untuk mensirkulasikan R515A ±2,2 kali lebih tinggi dibandingkan dengan mensirkulasikan R245FA tetapi efisiensi termalnya lebih tinggi ±9,75%.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-10-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
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	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14231</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i02.14231</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 02 (2023): Oktober 2023; 29-34</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 02 (2023): Oktober 2023; 29-34</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i02</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14231/6154</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2023 LONTAR Jurnal Teknik Mesin Undana</dc:rights>
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				<identifier>oai:ejurnal.undana.ac.id:article/14245</identifier>
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	<dc:title xml:lang="en-US">Simulasi Kinerja AC Split Menggunakan R32, R410A, R290, dan R1234YF</dc:title>
	<dc:creator>Dwinanto, Matheus M.</dc:creator>
	<dc:description xml:lang="en-US">Air conditioning (AC) is the treatment of air to regulate temperature, humidity, cleanliness and comfortable conditions needed by humans in a room. The lecture room in the Mechanical Engineering building at Nusa Cendana University is a building that is quite busy with lecture activities and services related to students. Therefore, it is necessary to have an air conditioning system to maintain thermal comfort for students and lecturers who carry out activities. This research aims to analyze the performance of the cooling system using refrigerants R290 and R1234YF as alternative refrigerants to replace refrigerants R32 and R410A using CoolTools software version 1.01. The simulation is based on steady state conditions with the AC cooling load being 5.3 kW. The results of this simulation show that the performance of an air conditioning system that uses R290 and R1234YF as an alternative refrigerant can be used because it has a better performance coefficient than refrigerants R32 and R410A</dc:description>
	<dc:description xml:lang="id-ID">Pengkondisian udara (AC) merupakan perlakuan udara untuk mengatur suhu, kelembaban, kebersihan, dan kondisi nyaman yang diperlukan oleh manusia dalam suatu ruangan. Ruang kuliah gedung Teknik Mesin Universitas Nusa Cendana merupakan salah satu gedung yang cukup ramai dengan aktivitas perkuliahan dan layanan yang berkaitan dengan mahasiswa. Oleh karena itu, perlu adanya sistem pengkondisian udara untuk menjaga kenyamanan termal bagi mahasiswa dan dosen yang melakukan aktivitas. Penelitian ini bertujuan untuk menganalisis kinerja sistem pendingin menggunakan refrigeran R290 dan R1234YF sebagai refrigeran alternatif pengganti refrigeran R32, dan R410A menggunakan perangkat lunak CoolTools versi 1.01. Simulasi didasarkan pada keadaan stedi dengan beban pendinginan AC adalah 5,3 kW. Hasil simulasi ini menunjukkan bahwa kinerja sistem pengkondisian udara yang menggunakan R290 dan R1234YF sebagai refrigeran alternatif dapat digunakan karena memiliki koefisien kinerja yang lebih baik dibandingkan refrigeran R32 dan R410A</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Nusa Cendana</dc:publisher>
	<dc:date>2023-05-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:identifier>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14245</dc:identifier>
	<dc:identifier>10.35508/ljtmu.v10i01.14245</dc:identifier>
	<dc:source xml:lang="en-US">LONTAR Jurnal Teknik Mesin Undana; Vol 10 No 01 (2023): April 2023; 62-68</dc:source>
	<dc:source xml:lang="id-ID">LONTAR Jurnal Teknik Mesin Undana (LJTMU ); Vol 10 No 01 (2023): April 2023; 62-68</dc:source>
	<dc:source>2407-3555</dc:source>
	<dc:source>2356-3222</dc:source>
	<dc:source>10.35508/ljtmu.v10i01</dc:source>
	<dc:language>ind</dc:language>
	<dc:relation>https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/14245/6147</dc:relation>
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