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All Journal LONTAR Jurnal Teknik Mesin Undana (LJTMU )
Daud P. Mangesa
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Mechanical Engineering

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Modifikasi Alat Pemarut Kelapa Sistem Mekanis Dengan Mata Pisau Setengah Lingkaran Marten E. Manane; Daud P. Mangesa; Defmit B.N. Riwu
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 8 No 02 (2021): Oktober 2021
Publisher : Jurusan Teknik Mesin, Fakultas Sains dan Teknik, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/ljtmu.v8i02.5944

Abstract

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
Analisa Potensi Gelombang Laut sebagai Sumber Energi Terbarukan Menggunakan Perangkat Oscillating Water Column (OWC) Di Wilayah Perairan Laut Timor Jahirwan Ut Jasron; Daud P. Mangesa; Kristomus Boimau; Ben V. Tarigan; Erich U.K. Maliwemu; Mexin Salombe
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 9 No 01 (2022): April 2022
Publisher : Jurusan Teknik Mesin, Fakultas Sains dan Teknik, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/ljtmu.v9i01.7269

Abstract

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 "Oscillating Water Column" 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.
Co-Authors Ben V. Tarigan Defmit B.N. Riwu Erich U. K. Maliwemu Jahirwan Ut Jasron Kristomus Boimau Marten E. Manane Mexin Salombe