Abstract
ABSTRACTAn internal combustion engine can convert only 30–35% of the heat energy supplied to it into useful work, and the remaining heat is lost through exhaust gases. The temperature of gases will be around 600°C. Reduction of heat carried away by the exhaust gases can be done by providing proper engine cooling system. This study deals about improving a two-stroke spark ignition engine’s efficiency by cooling its head using Peltier element. The Peltier element is placed in the engine head by cutting the fins to improve the efficiency of the two-stroke engine by maintaining the working temperature of the engine at 70°C. As per the experimental results, a decrease of 14% in brake-specific fuel consumption and an efficiency improvement of 19% were achieved. The % reduction in carbon monoxide, nitrogen oxides and hydrocarbons recorded are 5%, 20% and 40%, respectively.
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