Abstract

In the present study, the effects of bioethanol-diesel fuel- Beraid ED10 additive blends on engine performance and emissions were investigated on a four-stroke, three-cylinder, water-cooled, turbocharged diesel engine with a pump injection fuel system. Low-sulphur Eurodiesel fuel, BE5 (5% bioethanol – 93% euro diesel – 2% Beraid ED10), BE10 and BE15 fuels were used in the experiments. The changes that occurred in engine performance and emission values with the use of these fuels were examined. The results of the experiments showed that the highest engine torque was measured as 121 Nm with the use of Eurodiesel fuel (E0). The comparison of the engine effective power values did not reveal a significant difference among the fuels. The lowest specific fuel consumption (SFC) was measured as 178 g/kWh with the use of E0 fuel, while the highest SFC value was obtained with the use of BE15 fuel. The use of bioethanol-diesel fuel blends caused a decrease of approximately 50% in percent carbon monoxide (CO) value. Carbon dioxide (CO₂) values showed an increase of 50% and HC values increased at rates up to 300%. As the result of this study, it was found out that bioethanol-diesel fuel-Beraid ED10 blends can be used up to the ratio of BE15 without performing any changes in the diesel engine.

Key words: Bioethanol-diesel blend, E-diesel, Beraid ED10, engine performance, engine emissions.

Abbreviation

DI, Direct injection; NOx, nitrogen oxides; CO, carbon II oxide; HC,hydrocarbons; SFC, specific fuel consumption; E0, Eurodiesel fuel.