A Study on Performance and Emission Characteristics of Cotton Seed Methyl Ester, Sapindous Mukorossi Seed Oil, and Diesel Blends on CI Engine

In the present study, bio-fuel prepared from the blends of cotton seed methyl ester (COME), sapindus mukorossi oil (SNO) and diesel has been tested on a CI engine at an injection pressure of 240 bar. Its performance and emission characteristics are studied and reported. It was found that the brake thermal efficiency of COME25SNO5 was higher than that of diesel by 3%. At the maximum load the brake specific fuel consumption of COME15SNO5 and COME20SNO5 blends are 2% higher than that of diesel and for COME20SNO5 blend, the brake specific fuel consumption is 10.5% higher than that of diesel. At full load the COME15SNO5 blend and neat diesel have the same percentage of CO emission. Smoke opacity of diesel is higher compared to the blended fuels.