A Carnot heat engine, shown in Fig. P5.113, receives energy from a reservoir at Tres through a

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A Carnot heat engine, shown in Fig. P5.113, receives energy from a reservoir at Tres through a heat exchanger where the heat transferred is proportional to the temperature difference as ˙Q H = K(Tres − TH). It rejects heat at a given low temperature TL. To design the heat engine for maximum work output, show that the high temperature, TH, in the cycle should be selected as TH =√TresTL

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Fundamentals Of Thermodynamics

ISBN: 9781118131992

8th Edition

Authors: Claus Borgnakke, Richard E. Sonntag

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