디젤기관에서 바이오디젤 혼합유의 배기배출물 특성에 미치는 연료분사시기의 영향

Abstract

Abstract: Recently we have a growing interest in environmental pollution and alternative energy. Diesel engine is generally used to produce the power on shore and sea. However, the combustion characteristics and exhaust emissions of the engine are changed on account of the wear of fuel system and the altered ambient condition of the combustion chamber by the increment of the engine operation hour. Therefore thecombustion characteristics and exhaust emissions on the fuel injection timing were experimentally investigated to find out the optimum fuel injection timing in case of the about 20 years used diesel engine using biodiesel blend oil. The original fuel injection timing of the engine is BTDC 22 CA. However, it is found that the optimumfuel injection as a result of analyzing the specific oil consumption and exhaust emissions of 20 years usedthe engine is BTDC 26 CA Key words: Fuel injection timing, Biodiesel blend oil, Specific fuel oil consumption, Exhaust emissions, Soot emission