The effect of ignition timing and methanol gasoline blends on the performance and emissions of the spark ignition engine

Abstract

The automobile has changed a lot since the first horseless carriage to the gasoline-powered vehicles. The automobile has changed when the roads became paved and the fuel consumption in the gasoline engine forms a major portion of total petroleum consumption in the automobile industry. This work interweaves the study of experiments on the four-cylinder carburettor-type gasoline engine to cue the performance and emission characteristics by advancing the ignition timing from 10° to 30° BTDC using gasoline methanol blends as fuels in the ratios of 5% to 15% at an interval of 5% on volume basis. The effects of varying the engine working parameters such as ignition timing, brake power, brake thermal efficiency are observed and the variation of different engine emission parameters with the exhaust gas analyser is also observed. For M5, the brake-specific fuel consumption values decreased and brake thermal efficiency increased For M15, exhaust emission values decreased.