Performance, combustion and emission characteristics of a DI-CI diesel engine fueled with corn oil methyl ester biodiesel blends

As a result of increased global emission, higher fuel price, and limited natural resources, the need of alternative fuels is highly focused by various researchers. Use of edible oil in internal combustion (IC) engine is finding its place to replace the use of conventional fuel. In the present experimental investigation, corn oil methyl ester (COME) and its blends of biodiesel fueled in diesel engine to assess the combustion, performance, emission characteristics. The maximum blend ratio of corn oil methyl ester is limited to 30% with neat diesel. Results showed that using B10 biodiesel blend significantly improved the performance of engine and the maximum engine efficiency using B10 biodiesel blend is found as 33.98% and it is lower than neat diesel. Similarly, the BSFC of diesel engine using B10 biodiesel blend is increased only by 2%, whereas, using B20 and B30, the brake specific fuel consumption (BSFC) increased to about 4 and 6%, respectively. Results showed that the formation of NOx is higher as the oxygen content available in the fuel is higher and similarly, the CO₂ during combustion increased. The other emission such as CO and HC are reduced.