Consider an endoreversible engine for which the high temperature reservoir is boiling water (100°C) and the cold reservoir is at room temperature (taken as 20°C). Assuming the engine is operated at maximum power, what is the ratio of the amount of heat withdrawn from the high temperature reservoir (per kilowatt hour of delivered work) to that withdrawn by a Carnot engine? How much heat is withdrawn by each engine per kilowatt hour of delivered work?
Answer: Ratio =1.9