Investigation on the Effect of Compression Ratio for Performance and Emission Characteristics of C.I. Engine Fuelled With DieselBiodiesel Blends

Abstract

Environmental concern and availability of petroleum fuels have caused interest in the search for alternative fuels for internal combustion engine. Many alternate fuels are tried by various researches. Based on literature review it is found that for diesel engine Bio Diesel is most promising fuel. This project works prospects and opportunities of utilizing biodiesel and increasing biodiesel-diesel blend ratio as fuel in diesel engine is going to be studied by varying compression ratio. Also based on experimentation an optimum blend and engine parameters are to be suggested for obtaining better performance and emission control. Biodiesel present a very promising scenario of functioning as alternative fuels to diesel fuel. The properties of these can be compared favorably with the internal combustion engine fuels specially diesel engine. Experiments will performed for three compression ratio i.e. 16, 17 and 18 using biodiesel diesel blends i.e. B0, B10, B20, B30, with load variation from no load to full load and compared with base cases i.e. engine using diesel as a fuel. The parameters which will study in performance brake power, brake specific fuel consumption and brake thermal efficiency, In emission carbon monoxide, carbon dioxide, nitrogen oxide. As per the literature survey B20 (20%biodiesel and 80% diesel) is best in performance compare to other blends. But NOx formation is also little higher in B20.