Experimental Investigation of Performance and Exhaust Emission of Four Stroke Spark Ignition Engine Using Ethanol Blending

Mechanical Engineering

This paper deals with experimental investigation of performance and exhaust emission of four stroke spark ignition engine using ethanol blending. The engine performance parameters like torque, power and fuel consumption rate were investigated. Also, for the emission test carbon dioxide (CO2), carbon monoxide (CO) & hydrocarbon (HC) were considered. All experiments were carried out for different proportions that are EB0, EB5, EB10, EB15 and EB20 at various engine speeds. The research is mainly concentrate on two aspects one is to reduce the emissions of the engine and is to minimize the dependency on the conventional fuels and other is to improve the performance of the engine. Ethanol blending with gasoline gives almost the same results as gasoline used as a fuel, by using blend of ethanol and gasoline. The power of the engine and specific fuel consumption slightly increases due to low calorific value of the blend, while harmful emission like CO and HC decreases as more oxygen atom are available for combustion, and the carbon dioxide content increases due to complete combustion. The obtained results have shows that, the blend EB20 gave the best performance and is closest to gasoline fuel. Also reduction in exhaust emission has been reported.

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