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All Journal IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Jurnal Inovasi Teknologi Terapan
Iwan Gunawan
Universitas Khairun
Agriculture, Biological Sciences & Forestry Automotive Engineering Computer Science & IT Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisis Modifikasi Filter Fuel Caterpillar C15 Di Pusat Listrik Laiwui Muhammad Ridwan; Iwan Gunawan; Said Hi Abbas
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 1 (2023): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i1.28

Abstract

Today the development of technology is very rapid both in the field of basic science and the modification of a tool and even modifications in the field of engines, both combustion engines and electric engines. Modifications are needed to improve the performance of a machine. Modifications that can be applied to diesel engines that use fuels such as MFO, diesel, and biosolar. Diesel oil is the result of distillation of petroleum which is used only as fuel for compression ignition engines used by injectors. Biodiesel or biosolar is a type of fuel made from vegetable oil. The main objective of developing biodiesel is to substitute fossil fuels to produce green, environmentally friendly energy. The research we conducted was on the Caterpilar C15 Engine at PLTD Laiwui, and used biodiesel fuel (B30). Data collection is carried out when the machine is operating normally. From the data, we process it by analyzing it so we can find the main problem. From the results of the analysis, we get the root of the problem, namely the engine often shuts down because the pressure drops in the fuel system, this is caused by a dirty filter. From the results of the analysis, the researchers made a plan to modify the fuel system on the Caterpilar C15 engine at PLTD Laiwui. The modification applied is to add a material filter before entering the machine. then a performance test was carried out for 1 week and the modified data was compared with the initial data before the modification.  
Desain Pengering Elektrik Untuk Pengolahan Dendeng Ikan Cakalang (Katsuwonus Pelamis) M. Muzni Harbelubun; Tri Suyono; Iwan Gunawan; Amat Umron
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.356

Abstract

Traditional drying of skipjack jerky is still widely used by MSMEs, but it is highly weather-dependent, prone to contamination, and produces less uniform quality. This research aims to design and test a prototype of an incandescent electric dryer that is simple to operate, provides controlled drying conditions, and is easy to use. The system developed is an insulated cabinet with stainless-steel mesh racks, incandescent light heaters, forced-air circulation, and temperature and humidity sensors, monitored during a 360-minute performance test with sample mass changes. The results showed that the drying chamber temperature remained stable at 43.9–49.3 °C, the relative humidity dropped from about 47% to ±30%, and the jerky mass decreased from ±917 g to ±353 g, with a final moisture content of about 30%. Compared to sun drying, electric dryers provide faster drying rates and more stable drying patterns, making the time to achieve the target moisture content and quality between batches more predictable. These findings show that the prototype is worthy of consideration as an alternative drying technology for seafood processing MSMEs and serves as a basis for further development to improve energy efficiency and product uniformity.
Studi Kelayakan Teknis Potensi Energi Terbarukan Mini Hydro Di Desa Goal Kecamatan Sahu Timur Kabupaten Halmahera Barat Riyan Tri Nurharyanto; Iwan Gunawan
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 3 (2023): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i3.85

Abstract

The government has committed to achieving carbon neutrality by 2060 or earlier, with one of the steps to reduce emissions being the endorsement of PT Perusahaan Listrik Negara's General Plan for Electricity Supply (RUPTL) 2021-2030. The RUPTL stipulates that more than half, 51.6% or equivalent to 20.9 Giga Watt (GW), will come from renewable energy sources rather than fossil fuels. The potential of renewable energy, such as mini hydro power plants, is the focus of this effort. Indonesia has great potential in New Renewable Energy (NRE), including 450 MW of mini/micro hydro, with North Maluku alone having a possibility of 145.1 MW. One of the strategic issues at the national level is energy security, particularly in the North Maluku River Basin. The North Halmahera River Basin, which covers West Halmahera Regency, North Halmahera Regency, and Morotai Island Regency, is the primary focus in exploring the potential of micro hydropower plants. To fully utilise the potential of renewable energy and address the strategic issue of energy security, research needs to be conducted on the planning of MHP in Goal Village, with a case study on Akelamo River. The results of the research and analysis show that the water discharge reaches 7.86 m3/det with a head of 16 metres. The potential power that can be generated using Kaplan turbines is 817.21 kW. These steps can serve as a foundation for implementing sustainable MHP development projects. They can contribute significantly to the achievement of net zero emission targets that the government has promised.
Co-Authors Amat Umron Herbelubun, Muh Muzni Muhammad Ridwan Riyan Tri Nurharyanto Said Hi Abbas Tri Suyono