The Effect of Bioethanol-Varying Gasoline Blends on Performance and Emission of SI Engine 150 CC

Bioethanol is a natural product and manufactured by the fermentation of plants containing sugar and starch. Characteristic physical and chemical of bioethanol near to gasoline. As a biofuel, bioethanol can be used as a fuel substitution for gasoline with hopefully can decreasing emission and renewable energy for security energy. The objective of this research was to determine the effect of bioethanol-gasoline blended fuels on the performance SI Engine compared with varying gasoline at the market. The experimental test was using gasoline with octane number 88, 92, 98, with 5%, 10%, 15%, and 20% bioethanol blends. The effect of the bioethanol-gasoline blend on performance SI engine 150 CC is increased research octane number, and to decrease heating value with increasing blending bioethanol can decreasing power and increasing fuel consumption. The one important things in this research had differences of each kind of gasoline toward performance and emission of SI engine.