The Investigation of Bioethanol as Fuel in an SI Engine with Fuel and Ignition Systems Converted to Electronic Control

In this study; a four-stroke, air-cooled, spark-ignition engine was used. It’s aimed to improve the performance and emissions by renewing existing ignition fuel system of in way that can be controlled via computer. Classical modified with an electronic computer-controlled established using injector instead carburetor. Gasoline bioethanol fuels were compared original updated version conducting various experiments. these experiments, power torque, specific consumption, thermal efficiency, exhaust combustion analysis results examined. When obtained are evaluated; use electronically torque power, increase 11.58% maximum from gasoline 14.4% average observed standard system. Specific consumption decreased 18.32% for 26.95% at full load. At load, efficiency 22.43% gasoline, 36.9% bioeth-anol in-cylinder max. pressure 4% 8% in-crease bioethanol. emission values, CO value 6.2% 20% HC 3.8% 7.5% CO2, NOx O2 values increased 4.1%, 14.9%, 0.7% 0.7%, 5.6%, 0.4%