Investigation on the Performance and Emissions Characteristics of CI Engine Using Different Blends of Waste Cooking Oil Methyl Ester-Ethanol-Diesel Oil

摘要

In this study, performance and emission characteristics of waste cooking oil methyl ester, diesel oil and ethanol blends in a compression ignition engine are experimentally investigated. Work is carried out on pure diesel oil and blends B20, B20 with E10 and B15 with E5. Various physio-chemical properties of these fuel samples were determined. It has been observed that calorific value decreases for the blends when compared with diesel oil. The effect of waste cooking oil methyl ester blends on the engine performance and exhaust emissions has been examined at the injection pressure of 200 bar by varying the load. The experimental results observed that BTE for B20 with E10 blend is marginally higher compared to diesel oil and other blends at higher loads. BSFC increases by 1.03% for B20 with E10 at higher loads compared to diesel oil. NOx and CO emissions for B20 with E10 is lowered by 13.95% and 18.91% respectively compared to that of diesel oil at higher loads. HC emissions for B20 with E10 are 50% higher compared to that of diesel oil. Smoke opacity for B20 with E10 decreased by 35.85% compared to that of diesel oil at higher loads.