Performance and Emission Analysis of Diesel- Ethanol-Biodiesel Blend on VCR Engine

Today the important challenge is to reduced energy crises and pollution problems , since the use of fossil fuel is continuously increasing due to growth in industrialization. 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 hazardas effect on human health and environment. Biodiesel and ethanol are most suitable alternative for petroleum fuels since they are produced from renewable feedstock’s and are biodegradable. A number of research work was carried on biodiesel and ethanol blends with diesel fuel to study the performance and emission characteristics at constant compression ratio. 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 found that BP increases with increase in load for blend D80E15B5 at compression ratio 16. Also the NO emission decreases with increase in load for blend D80E15B5 at compression ratio 17.