Effect of Fuel Additives (Ethanol) on the Engine Performance Emissions of Single Cylinder Diesel Engine Fueled with Palm Oil Methyl Ester (PME) (B20)

Abstract

Transport technology development is a major issue leading to increase the number of vehicles, hence increase emissions and contributing to global warming. In this work the effect of fuel additives (ethanol) on the engine performance and emissions of single cylinder diesel engine fueled with palm oil methyl ester (PME) (B20) were investigated. The tests were performed by varying the engine speed between 2700, 3100 and 3500 rpm with intervals 400 rpm while maintaining the engine load at 50% of rated load. In this study, different fuels which is B0 (100% Pure diesel), B20 (20% PME), E5 (20% PME + 5ml ethanol), E10 (20% PME + 10ml ethanol) and E15 (20% PME + 15ml ethanol) were used. The result indicated that, average brake specific fuel consumption (BSFC) and Brake thermal efficiency (BTE) for usage of E5, E10 and E15 were increased compare with B0 and B20. Meanwhile, average value results of Carbon Monoxide (CO) and Unburned Hydrocarbon (UHC) for E5 was lowered compare to PME (B20). The addition of ethanol with PME (B20) fuel in single cylinder diesel engine can help in controlling exhaust emission and significantly improve engine fuel consumption.