Comparative Analysis of Engine Efficiency and Emission Using Premium Motor Spirit (PMS) and Liquefied Petroleum Gas (LPG) in Spark Ignition Engines

The increasing global demand for energy, coupled with growing concerns about climate change, air pollution, and energy security, has highlighted the need for sustainable and environmentally friendly transportation solutions. Spark Ignition Engines (SIEs), which are widely used in vehicles, are significant contributors to greenhouse gas emissions and air pollution.Therefore, exploring alternative fuels that can reduce the environmental impact of SIEs while enhancing their efficiency is crucial. This study investigates the performance and efficiency of a Spark Ignition Engine (SIE) when powered by Premium Motor Spirit (PMS) and Liquefied Petroleum Gas (LPG) separately, evaluating Key parameters analyzed include torque, power output, thermal efficiency, volumetric efficiency, brake mean effective pressure (BMEP), and fuel consumption. Experimental tests and simulations were conducted to compare engine performance under varying conditions. The results indicate that LPG delivers superior thermal efficiency and lower emissions than PMS, supporting its viability for cleaner energy applications. The study underscores the potential benefits of LPG-powered.