Comparative Evaluation of Multi-Port Fuel Injection Petrol Engine Powered Using Gasoline-EthanolMethanol Blend on Performance and Emission Parameters.

In today's world, energy security has become a major concern for most developing economies, including India. The nation's economy is hampered by high oil imports, volatile fuel prices, and poor air quality. Because of their liquid nature and similar physical and combustion properties to regular gasoline, Ethanol (E) and Methanol (M) have been appealing options to use as alternative fuels in automobiles. The focus of the article is to analyse the impact of adding alcohol (ethanol and methanol) at low rates (5 %, 20 %, and 25 %) to gasoline fuel on performance as well as emissions parameters. A 4-cyl, 4-s, water-cooled, multi-port fuel injection petrol engine was used for the experiments. It was running at various engine speeds (2100, 2800, 3500, and 4200 rpm) with a constant CR of 11:1. The research aimed to compare performance as well as emissions with three fuel blends, such as normal gasoline, ethanol (E), and methanol (M). In major trial instances, the performance reported higher BP, BSFC, and less BTE than the A20, A5, and A25 fuel blends. In addition, it represents a substantial decrease in CO2 and NOx exhaust emissions of the A5 with the rise in CO and HC for A5, A20, and A25 blends. Major Findings: A5, A20, and A25 blends increase the performance for brake power. (A5, A20, and A25) exhibit higher BSFC but enhance BTE for all speeds. The A5 blend has the minimum NOx and carbon dioxide emissions, while the A20 and A25 mixtures produce more emissions. [ABSTRACT FROM AUTHOR]