RSM analysis of heat balance of direct injection 4-stroke diesel engine using biodiesel fuel

AbstractThe effect of heat transfer on engine energy balance using biodiesel fuel was experimentally investigated using a 4-stroke, water-cooled, 4-cylinder, direct injection diesel engine. The engine speed was varied from 30 rps to 60 rps, while the load from idling to full load.The results show that the engine operation with diesel is slightly better than that with biodiesel for the same engine setup. It was also found that the combustion process with biodiesel starts earlier during the mixing phase than diesel fuel. Further, the combustion and peak cylinder temperature with biodiesel was lower than that for diesel fuel.