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A four stroke petrol engine has a compression ratio of 10.5, takes air at 90 kPa and 40∘C and is repeated 2500 times per minute. Using constant specific heats(cp=1.005kJ/kgK,cv=0.718kJ/kgK. and γ=1.4) at room temperature, then the rate of heat input is _____ kW. if the cycle is to produce 900J/cycle.61.515 |
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Answer» A four stroke petrol engine has a compression ratio of 10.5, takes air at 90 kPa and 40∘C and is repeated 2500 times per minute. Using constant specific heats (cp=1.005kJ/kgK,cv=0.718kJ/kgK. and γ=1.4) at room temperature, then the rate of heat input is _____ kW. if the cycle is to produce 900J/cycle.
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