https://ejurnal.undana.ac.id/index.php/LJTMU/issue/feed 2024-12-18T10:32:47+00:00 Verdy A. Koehuan verdy.koehuan@staf.undana.ac.id Open Journal Systems <div style="text-align: justify;"><strong>ISSN: <a href="https://portal.issn.org/resource/ISSN/2356-3222" target="_blank" rel="noopener">2356-3222</a> (Printed)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; e-ISSN: <a href="https://portal.issn.org/resource/ISSN/2407-3555" target="_blank" rel="noopener">2407-3555</a> (Online)</strong>&nbsp;</div> <div style="text-align: justify;"><strong>Lontar Jurnal Teknik Mesin Undana</strong>&nbsp;merupakan jurnal ilmiah rekayasa teknologi, khususnya bidang Teknik Mesin, yang diterbitkan secara berkala dua kali setiap tahun pada bulan April dan Oktober yang kelola oleh Jurusan Teknik Mesin Fakultas Sains Dan Teknik.&nbsp;Jurnal ini merupakan sarana publikasi dan karya riset beserta pengembangannya di bidang Konversi Energi (KE), Rekayasa Material (RM), dan Konstruksi Perancangan (KP). Kepada&nbsp;penulis yang berminat untuk Pemuatan artikel di Jurnal ini, dapat dialamatkan ke email:&nbsp;<strong>ljtmu@undana.ac.id.&nbsp;</strong>Artikel yang masuk akan diseleksi kembali oleh Reviewer dan Editor jurnal.&nbsp;<strong>Alamat Redaksi: </strong>Jurusan Teknik Mesin; Fakultas Sains dan Teknik; Universitas Nusa Cendana;&nbsp;<span style="text-align: right;">Jln. Adi Sucipto PO Box 85001, Telp. 0380-881597; Penfui-Kupang, NTT.</span></div> <div style="text-align: justify;"><strong>&nbsp;&nbsp;</strong></div> https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/18045 2024-11-05T05:55:44+00:00 Alfonsus Zenelius Panggar afenpanggar@gmail.com Verdy A. Koehuan verdy.koehuan@staf.undana.ac.id Yeremias M. Pell yeremias.pell@staf.undana.ac.id

<p>Research aims to analyze the clean water installation system in the Nursing Care Room on Floor III of the Ruteng Regional General Hospital building which is divided into three lines, namely the pump line to the upper reservoir, the reservoir line to distribution pipe A and the reservoir line to distribution pipe B. Installation system plumbing is an installation to meet the water needs of every plumbing equipment installed in a building. The analysis results show that the need for clean water in installation line A is 990 liters, while for installation line B it is 1,410 liters. So the total water requirement per day for the clean water plumbing system installation at Ruteng Regional Hospital is 2,400 liters per day. The pump power requirement is 170.45 Watts with a total head of 26.059 m and a flow rate of 2.41 m3/hour. If the analysis of pump needs is also to serve the clean water needs for the 1st and 2nd floors, assuming the water needs are the same as for the 3rd floor, each at 2.41 m3/hour with a total discharge of 7.23 m3/hour and a total pump head. 39.13 m, and the pump power requirement is 767.87 Watts.</p>

2024-10-30T00:00:00+00:00 ##submission.copyrightStatement## https://ejurnal.undana.ac.id/index.php/LJTMU/article/view/18028 2024-12-18T10:32:47+00:00 Makxy Melian Melian makxytkj@gmail.com Dominggus G. H. Adoe godliefmesin@staf.undana.ac.id Erich U. K. Maliwemu erich.umbu@staf.undana.ac.id

<p><em>This study evaluates the effect of temperature and oven time on the results of the Fourier Transform Infrared Spectroscopy (FTIR) test on Timorese cow bones. Beef bones from East Nusa Tenggara, which are rich in calcium and phosphorus, are processed through cleaning, boiling, and soaking H₂O₂ before calcining at various temperatures (100°C, 200°C, 300°C) and duration (1 and 2 hours). The FTIR results showed significant changes in the chemical structure of the bones, with variations in temperature and baking time affecting the quality and characteristics of the bones. The study concluded that the precise setting of the ovening parameters can improve the quality of beef bone-based products, such as hydroxyapatite.</em></p> <p>&nbsp;</p>

2024-10-31T00:00:00+00:00 ##submission.copyrightStatement##