Experimental Investigation of Dual Biodiesel by using VCR Engine

Experiments were conducted in this study using dual biodiesels with a combination of Pongamia (Leguminosae) and Lemongrass biodiesels (cymbopogoncitratus). They are the combination with diesel at different blends ratio (P15L5, P10L10 and P5L15). The performance of dual biodiesel used in engine and exhaust gas emissions were observed in a single cylinder, direct injection, water cooling and VCR compression ignition at different loads with respect to engine speed. The performance of B20 (i.e. Pongamia 5%, Lemongrass 15% and Diesel 80%) was improved by 28.67% than diesel engine and better combustion of blend was found than diesel. The emission of carbon monoxide is 18.5% decreased, hydro carbon is 16.6% decreases and carbon dioxides is 2.64% decreases of dual biodiesel blends were better than that of diesel