Investigation of Engine Performance Using Different Biodiesel Blends

Abstract

Engine performance is the major concerning issue using biodiesel in the world. Some experiments have been carried out to determine engine performance using coconut oil diesel and mixed biodiesel oils. All the fuels will be mixed with pure diesel according to percentage such as 5% of biodiesel, 10% of biodiesel, 20% of biodiesel and 30% of biodiesel. For the production of the biodiesel, transesterification process to convert pure coconut oil to coconut oil diesel. While for the engine performance, the parameters that involved are engine power, torque of the engine, and brake specific fuel consumption. The speed engine that we focus is starting with 1200rpm to 2200 rpm in 75% load condition and 100% load condition. Analysis for the results and discussions also has been done in this study. Engine brake power produced by mixed biodiesel is slightly lower than the fossil diesel but slightly higher than biodiesel at both 100% full load and 75% partial load. Engine brake specific fuel consumption of mixed biodiesel is slightly higher than fossil diesel but slightly lower than biodiesel in both 100% full load and 75% partial load.