The Effect of Biodiesel, Ethanol and Diesel Fuel Blends on The Performance and Exhaust Emissions in A DI Diesel Engine

Authors : İsmet CELIKTEN

Pages : 341-345

View : 17 | Download : 13

Publication Date : 2011-04-05

Article Type : Other Papers

Abstract :In this study, blends of No. 2 diesel fuel and ethanol with rapeseed oil and soybean oil methyl esters were tested in a four-stroke, four-cylinder, direct injection insert ignore into journalissuearticles values(DI); diesel engine. Tests were performed using diesel fuel + rapeseed oil + ethanol insert ignore into journalissuearticles values(DRE); blends and diesel fuel + soybean oil + ethanol insert ignore into journalissuearticles values(DSE); blends at different engine speeds and full load operating conditions and the results were compared with neat diesel fuel. In each test, brake torque, brake specific fuel consumption insert ignore into journalissuearticles values(BSFC);, smoke level, carbon monoxide insert ignore into journalissuearticles values(CO);, unburned hydrocarbons insert ignore into journalissuearticles values(HC); and nitrogen oxides insert ignore into journalissuearticles values(NOx); emissions were measured. The experimental results indicated that blends of No. 2 diesel fuel and ethanol with rapeseed oil or soybean oil methyl esters can be used in a DI diesel engine without any modification. According to obtained results, brake torque was decreased and the BSFC was increased with DRE and DSE fuel blends because of their lower heating value. Smoke level and CO and HC emissions were decreased. However, NOx emissions were increased with blends of DRE and DSE compared to neat diesel fuel.   Key Words : Diesel engine, alternative fuels, rapeseed oil, soybean oil, ethanol.
Keywords : Diesel engine, alternative fuels, rapeseed oil, soybean oil, ethanol