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All Journal Jurnal Kelautan Nasional International Journal of Marine Engineering Innovation and Research
Muhdar Tasrief
Biro Klasifikasi Indonesia
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Testing the Inclination of an Industrial Diesel Engine Under Static Conditions According to the International Convention for the Safety of Life at Sea (SOLAS) Regulations suardi suardi; Muhdar Tasrief; Samsu Dlukha Nurcholik; Amalia Ika Wulandari; Wira Setiawan
International Journal of Marine Engineering Innovation and Research Vol 8, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i1.15749

Abstract

many industrial diesel engines are used as the main engine of the ship. Apart from being relatively cheaper, the availability of industrial engine is also very abundant, and the repair process is also not too complicated. However, when viewed from the SOLAS regulations related to the main requirements for a ship propulsion engine, it must also be considered, because it operates at sea, so that ship engines must be tougher than industrial engines, especially related to engine performance when experiencing rolling and trim. The purpose of this research is to test the feasibility of industrial diesel engines being operated on ships. By using a water-cooled single-cylinder diesel engine which is commonly used in small ships. The experimental method was used in this research to obtain optimal results according to the conditions in the field, the engine was made in three variations, namely the normal condition (without inclination angle), the rolling condition of 150, and the trim condition of 50 which complies with SOLAS regulations related to the inclination angle. The results of the research obtained torque, Specific Fuel Consumption (SFC), and engine thermal efficiency in various engine variations. The highest torque is in the condition of the 150 rolling engine, which is 13.87 N.m. The lowest SFC is in the condition of the 150 rolling engine, which is 194 gr/kW.h. and the highest thermal efficiency was also obtained at the condition of the 150 rolling engine, namely 44.9%. The higher the engine speed, the higher the engine performance value in rolling 150 conditions, and the 50 trim conditions experience an increasing trend, but in low rotation conditions (750 Rpm) the performance decreases. Seeing the results obtained, a water-cooled single-cylinder diesel engine can be used as a small boat propulsion engine.
Perancangan Kapal Penangkap Ikan Tipe Multipurpose untuk Wilayah Pengelolaan Perikanan Republik Indonesia (WPP-RI) 713 Suardi Suardi; Muhdar Tasrief; Sultan Mahmud Cakasana; Wira Setiawan; Muhammad Uswah Pawara
Jurnal Kelautan Nasional Vol 18, No 2 (2023): AGUSTUS
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v18i2.11387

Abstract

Mayoritas kapal kapal nelayan di Indonesia khususnya yang berukuran 30 GT masih memiliki banyak kekurangan seperti kapasitas muatan yang sedikit, jarak tempuh pelayaran yang relatif pendek, desain kapal yang masih kurang ekonomis dan boros bahan bakar serta jumlah armada yang masih sangat sedikit dibandingkan dengan potensi perikanan yang melimpah di laut Indonesia khususnya wilayah pengelolaan perikanan Republik Indonesia (WPP-RI) 713 sehingga mendasari pentingnya dilakukan modernisasi kapal nelayan tradisional. Ukuran utama kapal diambil dari data satu kapal ikan yang terdaftar pada Biro Klasifikasi Indonesia. Desain kapal ini dilakukan dengan bantuan software Maxsurf Modeler dan AutoCAD student version. Adapun perencanaan mesin utama dilakukan dengan bantuan software Maxsurf Resistance dengan menggunakan metode perhitungan hambatan van Oortmerssen sehingga didapat kebutuhan daya mesin sebesar 99.733 HP setelah ditambah margin 15%. Kemudian dipilihlah mesin dengan Merk Yanmar dengan daya sebesar 110 HP. Dari hasil penelitian didapatkan hasil desain lines plan dan general arrangement kapal ikan multipurpose 30 GT dengan alat tangkap purse seine dan squid jigging yang dilengkapi dengan mesin Yanmar bertenaga 110 HP.
Performance and Emission Characteristics of Diesel Engines Using Biodiesel from Waste Cooking Oil with Cetane Number Improver Suardi; Faisal Mahmuddin; Syerly Klara; Muhdar Tasrief; Muhammad Uswah Pawara; Hijriah; Muhammad Reza Fachrul Jaya
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 3 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i3.4914

Abstract

The depletion of fossil fuel reserves has led to a global energy crisis, with increasing demand for alternative energy sources. Diesel fuel shortages, especially in countries like Indonesia, have driven the exploration of biodiesel as a sustainable alternative. This study aims to convert waste cooking oil (WCO) into biodiesel, with the addition of a cetane number improver (CNI) to enhance its performance in diesel engines. The biodiesel was produced through methanolysis, and 2-Ethylhexyl Nitrate (EHN) was added to improve combustion and reduce engine knocking. The results show that the produced biodiesel had a density of 856 Kg/m³ for B0, 872.7 Kg/m³ for B0 with CNI, and 872.1 Kg/m³ for B50CN. Viscosity values were 2.32 cSt for B0, 5.645 cSt for B50, and 4.722 cSt for B50CN. The cetane index was 49.2 for B50 and B50CN, while B0 had a value of 48. The emissions measured included CO levels of 194 mg/Nm³ for B0, 254 mg/Nm³ for B50, and 280 mg/Nm³ for B50CN. NOx emissions were 852 mg/Nm³ for B0, 755 mg/Nm³ for B50, and 825 mg/Nm³ for B50CN. Oxygen content was 15.9% for B0, 14.9% for B50, and 16.2% for B50CN. The findings indicate that adding EHN to WCO biodiesel improves fuel properties but increases emissions of CO and NOx. Overall, WCO-based biodiesel with EHN is a viable alternative fuel that balances performance improvements with environmental considerations.
Testing the Inclination of an Industrial Diesel Engine Under Static Conditions According to the International Convention for the Safety of Life at Sea (SOLAS) Regulations Suardi; Muhdar Tasrief; Samsu Dlukha Nurcholik; Amalia Ika Wulandari; Wira Setiawan
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 1 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i1.5521

Abstract

Many industrial diesel engines are used as the main engine of the ship. Apart from being relatively cheaper, the availability of industrial engine is also very abundant, and the repair process is also not too complicated. However, when viewed from the SOLAS regulations related to the main requirements for a ship propulsion engine, it must also be considered, because it operates at sea, so that ship engines must be tougher than industrial engines, especially related to engine performance when experiencing rolling and trim. The purpose of this research is to test the feasibility of industrial diesel engines being operated on ships. By using a water-cooled single-cylinder diesel engine which is commonly used in small ships. The experimental method was used in this research to obtain optimal results according to the conditions in the field, the engine was made in three variations, namely the normal condition (without inclination angle), the rolling condition of 150, and the trim condition of 50 which complies with SOLAS regulations related to the inclination angle. The results of the research obtained torque, Specific Fuel Consumption (SFC), and engine thermal efficiency in various engine variations. The highest torque is in the condition of the 150 rolling engine, which is 13.87 N.m. The lowest SFC is in the condition of the 150 rolling engine, which is 194 gr/kW.h. and the highest thermal efficiency was also obtained at the condition of the 150 rolling engine, namely 44.9%. The higher the engine speed, the higher the engine performance value in rolling 150 conditions, and the 50 trim conditions experience an increasing trend, but in low rotation conditions (750 Rpm) the performance decreases. Seeing the results obtained, a water-cooled single-cylinder diesel engine can be used as a small boat propulsion engine.
Co-Authors Amalia Ika Wulandari Faisal Mahmuddin Hijriah M. Uswah Pawara Muhammad Reza Fachrul Jaya Samsu Dlukha N Suardi Suardi Sultan Mahmud Cakasana Syerly Klara Wira Setiawan