“PERFORMANCE AND EMISSION ANALYSIS OF DIESEL-ETHANOL-BIODIESEL BLEND ON CI ENGINE”

Mechanical Engineering

Today use of fossil fuel is continuously increasing due to growth in industrialization and transportation section, for economic development of country and living standards. Hence there is need to find and alternative fuels to decrease the consumption of fossil fuel and reduce the emission emitted from fossil fuel which produces hazards effect on human health and environment. Ethanol and biodiesel are most suitable alternative for petroleum fuels since they are produced from renewable feedstock. A number of research works has being done on biodiesel and ethanol blends with diesel fuel at constant compression ratio to determine performance and emission characteristics. In this paper the research work is carried to study performance and emission analysis of diesel-ethanol-biodiesel blends (D90E5B5,D80E10B10 and D80E15B5 ) on Variable compression ratio engine at 0%,10%,25%,50%,75%,100% of maximum load and CR 16,17,18 respectively and result obtained are validated with pure diesel (D100)at same load and compression ratio. It is observed that BTE (brake thermal efficiency) increases with increase in load for blend D80E15B5 at compression ratio 16 at higher load. Also it is observed that CO2 emission decreases with increase in load by 3.44%, 9.19% and 5.74% for blends D90E5B5, D80E10B10 and D80E15B5 at CR-16 respectively.

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