Application of blend fuels (Jatropha curcas biodiesel) in an indirect ignition diesel engine

Accepted 13^th January, 2021
 

De-Xing Peng

Department of Vehicle Engineering, Army Academy, Taiwan, R.O.C.
 

The use of fossil fuels for internal combustion engines features a number of negative effects such as inferior air quality, negative effects on human health, and global warming. In this study, blended biofuels (Jatropha curcas biodiesel) and pure ultra-low-sulfur diesel (petrodiesel) fuels were used to power a turbocharged diesel engine, in which a series of engine performance and exhaust emissions tests were performed. The results indicated that the emissions of hydrocarbon, carbon monoxide, carbon dioxide and smoke were reduced by 12.5%, 30.43%, 22.41% and 7.54%, respectively. However, the fuel consumption, oxygen and exhaust gas temperature were increased by 7.97%, 4.16% and 3.8%, respectively. No evident difference was exhibited in the emission of nitrogen oxides. The engine exhaust emissions for J. curcas biodiesel blends were lower than those for pure petrodiesel fuel because of the presence of O2 in the molecular structure of the J. curcas biodiesel.

Key words: Biodiesel, biesel engine, engine testing.