Performance of copper coated two stroke spark ignition engine with Gasohol with Catalytic converter with different catalysts

Investigations are conducted on twostroke, single cylinder spark ignition (SI) engine with gasohol (80% gasoline, 20% ethanol, by vol) having copper coated engine [CCE, copper(thickness, 300 μ) coated on piston crown, inner side of liner and cylinder head] provided with catalytic converter with different catalysts such as sponge iron and manganese ore and compared with conventional SI engine (CE) with gasoline operation. Brake thermal efficiency and volumetric efficiency increased with gasohol with both versions of the engine. CCE showed improved performance and decreased pollution levels when compared to CE with both test fuels. Catalytic converter with air injection significantly reduced pollutants with both test fuels on both configurations of the engine. The catalyst, sponge iron reduced emissions effectively when compared with manganese ore in both versions of the engine with both test fuels.