Q1. Suppose a hot body is available at 327 oC while the ambient temperature is 27 oC. Calculate the maximum efficiency of a heat engine which operates between these two bodies. Determine the power delivered by the engine if it absorbs energy as heat at a rate of 15 kJ/s from the hot body.
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Overall, heat is flowing from the hot boiler to the cooler surrounding air and some of that heat is being converted into mechanical work by the moving piston. The maximum efficiency of a steam engine is emax = (Tsteam - Tair)/Tsteam. The actual efficiency is usually much lower.
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