Performance Analysis and Investigation of Emissions of C.I.Engine Using Biodiesel as Blending Agent

Abstract

The industrialization of the world has led to a sharp rise for the demand of petroleum products. The fast depletion in the petroleum reserve and uncertainty in supply due to political and economical reasons are causing hike in petroleum prices. Environmental pollution due to burning of these fuels has stimulated the search for alternative fuels to petroleum fuels. High dependance on non-renewable sources presents a window of opportunity for looking at alternative fuels. Biodiesel can be cosidered as one of the potential renewable energy sources for diesel engines. Biodiesel can be used directly or in blended form of diesel. In the present review, reports about engine performances and emissions using biodiesel published by journals regarding the effect of biodiesel on engine power and emissions of a four strokes compression ignition engine are surveyed and analyzed in detail. An experimental investigation was made to evaluate the performance and emission characteristics of a diesel engine using different blends of methyl ester of cottonseed oil and neemseed oil with mineral diesel. Cottonseed and Neemseed methyl ester were blended with diesel in proportions of 10%, 20%, 30% and studied under various load conditions and compression ratio in a compression ignition (diesel) engine. The performance parameters were found to be very close to that of mineral diesel. The brake power, brake thermal efficiency, specific fuel consumption and exhaust gas temperature were studied. Similarly the emission characteristics were also studied and levels of carbon dioxide, NOx found to be more than diesel.