ANALISIS PENGGUNAAN BAHAN BAKAR METHANOL SEBAGAI DUAL FUEL DALAM MEMPERTAHANKAN KINERJA INJECTOR MESIN INDUK DI KAPAL MT. SAVONETTA SUN

Abstract

Siregar, Daniel Marco Anjuando. 2025. " Analysis of Methanol Fuel Utilization as Dual Fuel in Maintaining Main Engine Injector Performance on Board MT. Savonetta Sun” The development of the maritime industry demands the use of environmentally friendly alternative fuels, one of which is methanol. The use of methanol in marine main engines offers advantages such as lower emissions and cleaner combustion. However, it also presents technical challenges, particularly in the fuel injection system. This study aims to analyze the use of methanol fuel in maintaining the performance of main engine injectors, with a case study on the MT. Savonetta Sun. The problems identified include nozzle breakage in the injector and variations in exhaust gas temperature between engine cylinders. This research employs a descriptive qualitative method, with data collected through observation, direct interviews with engine crew, and document analysis. The results show that nozzle damage is caused by factors such as overheating, sticking in the Fuel Booster Injection Valve (FBIV), and suboptimal lubrication and cooling systems. Furthermore, the difference in exhaust gas temperature is caused by atomization disturbances due to nozzle damage. The findings highlight the importance of routine maintenance, prevention of sticking, and optimization of the methanol injection system through regular purging and flushing procedures.