Experimental and simulation study for the effect of waste cooking oil methyl ester blended with diesel fuel on the performance and emissions of diesel engine

Abstract The methyl ester of waste cooking oil (MEWCO) has been prepared from used cooking oils collected from different restaurants and investigated experimentally and theoretically. The suggested biodiesel is mixed with different percentages (10%, 20%and 100%) on a volume basis together with original diesel fuel and tested on a constant speed diesel engine. The experimental work deals with the impact of the blending ratio on the performance and emission parameters at different load conditions. The experimental side is verified with simulation study done by Diesel-rk software and it reveals that they are in good agreement. The maximum pressure reduced as a result of increasing MEWCO blends due to the reduction in the heating value of the blended fuels. Both sides are reported promising reduction in nitrogen oxides (NO x ) on the behalf of carbon emissions. Mixing 20% MEWCO is the best compromise, mixing ratio and beyond that, dramatic reduction in the outcome of the performance has been observed.