An engine has an efficiency e1. The engine takes input
Chapter 15, Problem 15.157(choose chapter or problem)
An engine has an efficiency e1. The engine takes input heat of magnitude QH from a hot reservoir and delivers work of magnitude W1. The heat rejected by this engine is used as input heat for a second engine, which has an efficiency e2 and delivers work of magnitude W2. The overall efficiency of this two-engine device is the magnitude of the total work delivered (W1 W2) divided by the magnitude QH of the input heat. Find an expression for the overall efficiency e in terms of e1 and e2. ** 100. Beg
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