A STUDY OF PERFORMANCE OF ENGINE RUNNING ON BIO ETHANOL FUEL AND ITS EFFECT ON A FOUR STROKE ENGINE COMPONENTS

摘要

Indonesia Is blessed with relatively abundant potential of renewable energyudbiomassudpotential is around 50 GW. However the utilization of biomass Indonesia is still very lowudcompare to its huge potential. Another political driver encouraging the use of biomass isudthat are local to generate energy, employement and economic benefitsudcompared toudimported fossil fuel.udBioethanol is an alternative for gasoline engine fuel that is produced fromudcassavaud(ubi kayu). Cassava is a kind of agriculture product that grows in tropic and sub tropic area.udIndonesia as a tropical country has high potential to produce cassava is large scale as oneudof the income source that cannot be disregarded. Ethanol is produced from raw material ofudcassava, the carbohydrate content is the main composition of cassava (ubi kayu) to convertedudinto alcohol, alcohol fermentation is a carbohydrate decomposition process become ethanolud(2C2H5OH) and CO2.udThe experiment is conduct on a single cylinder naturally aspirated and air cooled,udhorizontal type, four stroke, spark ignition engine, type OH195 ??? EA (Robinson) and has theudpower engine 4HP/3750 rpm, as an engine test bed. In this experiment will to see the engineudrunning with the fuel mixing between gasoline and bioethanol, performance parametersudand emission will be recorded. And also this experiment will to see effect of bioethanoludfuel mixing with gasoline on the engine components.