Effect of Di Ethyl Ether (DEE) additive, Compression Ratio (CR) and EGR on the Performance and Emission of DI Diesel engine operated on Fish Oil Methyl Ester (FOME)

As all we know that the applications of IC engines increasing day by day and at the same time the use of fossil fuels for this purpose increased drastically for past decades. Hence it was given much more importance to alternative fuels in the field of engineering. Hence much more researchers are working on design as well as operating parameters of an IC engine so that we can expect improved efficiency with limited emissions parameters. This paper depicts the use of biodiesel as alternative fuel for IC engines. This experimental investigation were carried out on single cylinder 4-stroke diesel engine operated with Fish oil methyl ester (FOME) Biodiesel and diesel blends with and without EGR and performance and emission characteristics, with compression ratio 16.5:1 and 17.5:1 from the results obtained, for blend B40D40A20 (without EGR) with compression ratio 17.5:1 it is having higher Break Thermal Efficiency (BTE) of 29.5% as compared with other blends B10, B20 and B30. For blend B40D40A20 its having less emission of CO (0.04%), CO2 (2.31%), HC (61ppm) and Smoke density (59HSU) as compared with other blends and diesel for the same load condition. For the blend B40D40A20 (with EGR 20% and compression ratio 17.5:1) increased in BTE (30.06%) and decrease in the emissions of CO (0.035%), CO2 (2.19%), HC (51ppm) and Smoke density (54HSU), compared the optimized blend result with diesel results.