The use of blend methanol at High Compression Ratio in spark-ignition engine

it can be obviously seen the world's fossil fuel reserves are limited. It is well known those passenger vehicles are dependent on fossil fuels such as gasoline, diesel fuel, liquefied petroleum gas, and natural gas. The fossil fuel used in passenger vehicles induces the air pollution, acid rains, build-up of carbon dioxide and crude oil; petroleum product will become very scarce and costly. Hence, there is a progressively interest related with using non-fossil sources in vehicles. Especially, the alcohol fuels (methanol, ethanol etc.) have been showed good candidates as alternative fuels for the vehicles equipped with SI. In this experimental study, the effect of methanol (30% and 40%) with gasoline (70% and 60%) tested to measure the performance and emission of 4- cylinder spark ignition multi-port fuel injection (MPFI) engine. The tests with/without methanol blends and increase compression ratio 8.8:1 to 11:1 were performed on a rope belt dynamometer while running the engine at speed 1500 rpm at different varying engine load. In these tests measure engine performance parameters like engine torque, brake specific fuel consumption, brake thermal efficiency and exhaust emission. After experimental investigations to measure engine power increase 10.6%, brake specific fuel consumption decrease 4.2%, brake thermal efficiency increase and exhaust gas emission is decrease with use of methanol blend fuel with gasoline.