Abstract
In the contemporary world, human consumption of energy in the form of fossil fuels is growing at an alarming rate and is a major concern for scientists as well as economists. In order to counter these phenomena, the study of biodiesel fuels is carried out by most researchers as an alternative to the conventional fossil fuels. In this present study, the effects of Calophyllum Inophyllum biodiesel blends on the engine performance, combustion, and emission characteristics were investigated. An experimental study was done on a twin cylinder diesel engine of direct injection type at a constant speed of 1500 rpm with Calophyllum Inophyllum methyl ester (CIME) biodiesel blends B5, B10, B20, and B100 by volume. Results showed that CIME blend B5 produced 3.28% lower BSFC and 4.8% higher BTE compared to pure diesel. Comparable combustion characteristics were observed for all biodiesel blends among which B5 showed the best results. B5 CIME blend depicted lower emission results with 12.29% and 9.57% decrease in HC and CO, respectively, as compared to conventional diesel. However, NOx emissions were found to be higher for all blend concentrations with respect to conventional diesel.
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