Abstract
ABSTRACT Biodiesel is a viable solution for the reduction of greenhouse gas emissions with a minimum carbon footprint. It is a liquid fuel derived naturally available resources like biological wastes. It acts as a substitute for petroleum-based fuel due to better or equal performance with lower or equal emissions from the engine. However, most of the researchers pointed out that use of biodiesel in CI engine will result in lower emissions but there is an increase in NOx emission. Further NOx emission can be reduced significantly, when an additive is added with biodiesel. In this present investigation process, different biodiesel like Annona methyl ester, Neem methyl ester, Jatropha methyl ester, Pongamia methyl ester and Mahua methyl ester were processed using the transesterification process and it found that fuel properties of all B20 blends have closer value to the conventional diesel fuel. Further antioxidant additive P-phenylene-diamine (PPDA) is added to all the B20 biodiesel blends with different concentrations like 500, 1000, 1500 and 2000 ppm. Among these annona-based B20 (A20) with 1000 ppm of PPDA showed a lower NOx of 469 ppm, which is 19.13% lower than A20 with 2000 ppm. Therefore, A20 with 1000 ppm showed lower NOx emission than other proportions.
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