The engine that powers a crane burns fuel at a flame
Chapter 21, Problem 21.65(choose chapter or problem)
The engine that powers a crane burns fuel at a flame temperature of 2000C. It is cooled by 20C air. The crane lifts a 2000 kg steel girder 30 m upward. How much heat energy is transferred to the engine by burning fuel if the engine is 40% as efficient as a Carnot engine?
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