Improvement in the performance of Simarouba blended diesel fuel using Di-ethyl ether and Dimethyl carbonate as additives in a CRDI engine

Abstract

This study investigates the effects of B20 and additives added to the B20 blend when run in a CRDI engine under different loading conditions. Experimental studies compared to diesel show the poor performance of B20. The addition of DMC (dimethyl carbonate) and DEE (diethyl ether) in B20 significantly improved. Under high load conditions, the performance characteristics of BTHE of B20 DMC are relatively higher and lower BSFC than B20 DEE values. It can be seen from the emission results that NOx emissions are higher due to proper combustion in the case of B20 DMC. The emission characteristics show that B20 with 5% DMC showed better results than other samples present. This happens because of better and proper combustion of the fuel. It showed better results in the emission of CO and hydrocarbons while the DEE sample at 600bar showed better results for smoke emission. The combustion characteristics also show the same result that B20 with 5% DMC is a better fuel when compared with the rest of the samples. Though in performance characteristics we noted that B20 with 5% DEE showed better results in the graph between crank angle vs cylinder pressure and crank angle vs heat released.