ANALYSIS OF PERFORMANCE AND EMISSION PARAMETERS OF METHYL ESTERS OF COCONUT OIL AND EUCALYPTUS OIL BLENDS IN VCR-CI ENGINE

Oil and coconut oil have been selected exclusively as a complete replacement of diesel in a variable compression ratio (VCR) engine. Coconut oil cannot be directly used as a fuel in CI engine due to its high FFA content. Thus, two stages of transesterification are done followed by water washing. Acetone is used as fuel additive Performance and emission parameters of five fuels, namely Diesel, (C70+E30), (C80+E20), (C90+E10) and (C90+E10+ADD) have been studied at two compression ratios of 16 & 18. (C90+E10+ADD) blend at a compression ratio of 18 shows better performance and lower emissions when compared to With the increasing consumption of fossil fuels along with the increasing number of automobiles, there is a definite need for finding a proper replacement for fossil fuels which should also be environmentally friendly & renewable in nature. Because of the dominant role of CI engine in day-to-day life, the paper focuses exclusively on the research of alternative fuels for the CI engine. Blends of eucalyptus other fuels and compression ratios.