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All Journal Saintara : Jurnal Ilmiah Ilmu-Ilmu Maritim Jurnal Ilmiah Kemaritiman Nusantara
Insani, Immawan
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Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Model Simulasi Perhitungan Konversi Daya Mesin Diesel Kapal Konvensional 20 HP ke Mesin Penggerak Motor Listrik BLDC Insani, Immawan; Purnomo, Yohanes R.
Saintara : Jurnal Ilmiah Ilmu-Ilmu Maritim Vol 8 No 2 (2024): SAINTARA (September 2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Akademi Maritim Nusantara Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52475/saintara.v8i2.338

Abstract

More and more people are aware of the importance of environmental conservation, especially in the maritime sector, so the maritime industry is turning to more environmentally friendly technologies. Diesel marine engines, which have been the standard for years, have major drawbacks, namely high exhaust emissions and dependence on fossil fuels. To support green technology initiatives, ship propulsion systems are now starting to switch to Brushless Direct Current (BLDC) electric engines that are more efficient and environmentally friendly. BLDC electric motors are highly energy efficient, reduce emissions, and are easier to maintain. They work by diverting current to the stator windings, which generates a magnetic field that drives the rotor. In-depth calculation and simulation models are essential for the preparation and execution of this conversion. Develop a calculation and simulation model that can be used to evaluate and optimize the conversion process of a Diesel ship engine to a BLDC electric engine. The converted engine is Marine Shark SM 1110 TT, which has a maximum power of 20 HP and 1500 RPM. This research required a design methodology that collected literature study data and calculations. The calculation results show that to replace the convention ship Diesel engine with a BLDC electric motor, an electric motor power of 15 kW is required, the power efficiency is 5.83 kW to replace a Diesel engine with a power of 20 HP with a power efficiency of 5.25 kW at 1500 RPM. Meanwhile, the effective power generated by the BLDC electric motor is 13.5 kW with a torque value of 86 Nm. The effective power generated by BLDC is 2.57 times greater than the Diesel motor. With the conversion of these calculations BLDC is able to replace conventional Diesel engine power as a propeller driver on the ship.
Karakteristik Air Cooler di Kabin Kapal KM. Ebisu Ragil Purnomo, Yohanes; Insani, Immawan; Hendrawan, Andi
Jurnal Ilmiah Kemaritiman Nusantara Vol 3 No 1 (2023): Jurnal Ilmiah Kemaritiman Nusantara
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Akademi Maritim Cirebon

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Abstract

Sistem pendingin evaporatif merupakan alternatif ramah lingkungan karena tidak memanfaatkan bahan yang menipiskan lapisan ozon atau berkontribusi terhadap pemanasan global. Penelitian ini bertujuan untuk mengetahui variabilitas air cooler dan karakteristik air cooler dengan cooling pad sabut kelapa yang digunakan di kabin kapal. Penelitian ini menggunakan air cooler yang ada di pasaran dengan menambahkan cooling pad serabut kelapa dan membandingkan air sebagai fluida kerja dengan penambahan 2 kg es batu dan tanpa penambahan 2 kg es batu. Hasil penelitian ini menunjukkan bahwa (a) Pendingin udara dengan tambahan cooling pad pendingin sabut kelapa bekerja lebih baik daripada pendingin udara tanpa cooling pad serabut kelapa. (b) Karakteristik pendingin udara yang dimodifikasi dengan 8 variasi memberikan hasil efisiensi terbaik saat menggunakan cooling pad serabut kelapa dan penambahan 2 kg es batu pada kondisi udara berikut : Kondisi udara kering masuk (TdBin) = 31,50°C, kondisi udara kering keluar (TdBout) = 23,50°C,  kondisi udara basah masuk (TwBin) = 21,00°C, kondisi udara basah keluar (TwBout) = 21,00°C, dan dengan efisiensi (h) = 91,89%.
Co-Authors Hendrawan, Andi Purnomo, Yohanes R. Ragil Purnomo, Yohanes