An Experimental Investigation on Performance of CI Engine Using Diesel, Esterified Cotton Seed Oil and Diethyl Carbonate as Additive

In this study, Cotton seed oil ethyl ester was produced by transesterification process. The performance of diesel engine was experimentally investigated by using cotton seed oil ethyl ester as fuel. For the study cotton seed oil ethyl ester was mixed with diesel fuel and B20 blend was prepared. Also Diethyl Carbonate was added as an additive in 4, 8 and 10% proportion. Fuels were tested on a single cylinder, four-stroke, direct injection, water cooled diesel engine. The effects of cotton seed oil ethyl ester diesel blend on engine performance were examined at constant speed and varying loading conditions. The effect of B20 and its blends with diethyl carbonate on engine power, brake specific fuel consumption, brake thermal efficiency and exhaust gas temperature were clarified by the performance tests. The experimental results showed that the use of B20 with 10% diethyl carbonate increases the brake thermal efficiency, decreases fuel consumption; decreases brake specific fuel consumption and also the exhaust gas temperature. However, there were no significant differences in performance values of diesel, B20 and B20 with diethyl carbonate. The experimental results showed that the lower contents of cotton seed oil ethyl ester in the blends can partially be substituted for the diesel fuel without any modifications in diesel engines.