Environmental and Performance Impact of Jatropha Biodiesel Blends on Combustion in Compression Ignition Engine [ ]


In this study, extracted oil from jatropha seeds was used to produce neat (pure) biodiesel through transesterification, and this converted biodiesel was used to prepare biodiesel/diesel blends. This study presents the preliminary research results of an investigation carried out on the potentiality of different biodiesel blends as an alternative fuel for compression ignition engines at load and no load conditions. The main objective of this research is to compare selected emissions of petroleum diesel with jatropha biodiesel fuel blends (B10, B20, B30, and B100) and B10* treated by ozonation. B20 produced the lowest CO concentration for engine test. B50 produced higher CO2 than other fuels for all engine tests, where B20 gave the highest. The biodiesel and biodiesel/diesel blend fuels produced higher NOx for various engine tests as expected. SO2 formation showed an increasing trend as the percentage of diesel increased in the fuels. Overall, we may conclude that B20 is the optimum fuel blends.