Investigations on CI engine with nano-sized zinc oxide added Mahua Methyl Ester blends

Abstract

ABSTRACTAn investigational research is done to evaluate the performance and emissions characteristics of a direct injection diesel engine operated with Mahua Methyl Ester (MME) and its blends with zinc oxide (ZnO) nanoparticles as an additive. The MME is produced from raw Mahua oil through the process of transesterification. The fuel is modified by dispersing the nanoparticles catalyst by ultrasonic agitation. Various diesel–biodiesel–ZnO blends were prepared by varying the biodiesel and nano proportions of 20% and 50% by volume and 50 and 100 ppm of ZnO nanoparticles to study its performance and emissions characteristics on a single cylinder, CI engine. The results showed that the suitable nano-additives blend resulting in best engine performance is B20 with 50 ppm ZnO nano additive. At this proportion, thermal efficiency is increased up to 3%, and all NOx, CO and HC emissions have been reduced.