Performance and emissions of si engine with octane boosters

Abstract

In today's world we see that the demand for gasoline and cars keep increasing and one problem which is significantly seen is that we either opt for a fuel which provides higher performance or for a fuel which provides lesser emissions. In this study we aim to provide higher performance and lower emissions by combining two chemicals or octane boosters, namely ethanol and toluene with gasoline and find out its performance and emission characteristics when compared with traditional gasoline and ethanol-gasoline blend. In this study we have made four blends which are PP, E10, E10T5 and E20T5 which are tested against two performance parameters which are Specific Fuel Consumption, Brake Thermal Efficiency with respect to brake power and emissions parameter which are Carbon Dioxide, Carbon Monoxide, Oxides of Nitrogen and Hydrocarbon with respect to brake power as well. In each of these performance and emissions parameters, the blends are compared and we find that E20T5 has the highest performance and E10T5 has the lowest emission. Properties of Ethanol:Heating Value(MJ/kg): 26.9 Density(kg/m 3 ): 785 Octane Number: 106-110 Enthalpy of Vaporization(kJ/mol): 40.65 GasolineGasoline is a transparent, petroleum-derived liquid that is used as a fuel in spark-ignited internal combustion engines. Properties of Gasoline: Heating Value(MJ/kg): 44 Density(kg/m 3 ): 765 Octane Number: 95-98 Enthalpy of Vaporization(kJ/mol): 33.97