Achievement Analysis of One Cylinder Diesel Engine Using Virgin Coconut Oil Biodiesel

Abstract

Coconut biodiesel is one of the alternative fuels as a substitute for diesel fuel because it can be produced from renewable energy sources, such as virgin coconut oil (VCO). VCO is one of the most potential ingredients as biodiesel feedstock because of its high oil content. Biodiesel from virgin coconut oil in this study produced a transesterification reaction process using CaO catalyst. This study aims to compare the performance of diesel engines "Dong Feng R-175" using biosolar (B5) and virgin coconut oil biodiesel. This study shows that pure coconut oil biodiesel can be used directly in "Dong Feng R-175" diesel engines. The maximum torque of virgin coconut oil biodiesel is 9.81 Nm at 1200 RPM, and the maximum power produced is 1.33 kW at 1700 RPM with specific fuel consumption (SFC) 0.24 kg / kWh. On average, the thermal efficiency of diesel engines "Dong Feng R-175" using virgin coconut oil biodiesel increased by 33.08% compared to using biodiesel B5.