Effect of cylinder head temperature on performance and emissions of a spark ignition engine operating on different fuels

A numerical study was created and developed to evaluate the engine performance, combustion characteristics exhaust gas emissions of a spark-ignition by using gasoline, liquefied petroleum (LPG) ethanol fuels at different cylinder head temperature (150, 200, 250, 300 350 °C) speed 2500 rpm (revolution per mint) constant load. Four-cylinder four-stroke, water cooling system spark ignition used in this study. The results were collected appear that brake power effective torque decreased when increased, whereas there is no noted alteration specific fuel consumption for all tested fuels. peak fire pressure reductions while slightly growths transfer from low higher temperatures. LPG produced lower compared gasoline with about 4.62 % 31.57 respectively than fuel. carbon monoxide CO oxide nitrogen NOx unburned hydrocarbon emission dramatically decreases increases. emitted operating situation 27% 64%