Reducing Emissions and Promoting Environmental Sustainability in Spark-Ignition Engines with Isopropyl Alcohol Blends

Abstract

– Researchers employ various methods to reduce the emissions of pollutants emitted from engines. One approach to decrease the emission levels from spark-ignition engines without making any structural modifications is using alternative fuels. Isopropyl alcohol is used as an alternative fuel in spark-ignition engines. In this study, the effects of using different ratios of gasoline-isopropyl alcohol blends as fuels on exhaust emissions were investigated experimentally in spark-ignition engines. Mass percentages of 10% and 20% isopropyl alcohol were blended with gasoline fuel in the experiments. The experimental results revealed reductions in HC emissions at all engine speeds when different ratios of isopropyl alcohol blended fuels were used compared to gasoline fuel. The maximum reduction in HC emissions was observed with the 20% blend ratio. Reductions in NOx emissions were also obtained with 10% and 20% isopropyl alcoholgasoline blends. The study concluded that the use of 10% and 20% isopropyl alcohol blended with gasoline fuel resulted in reduced exhaust emissions from the engine. This leads to lower emissions released into the environment and provides an alternative fuel option to petroleum-based fuels.