4. A typical heat engine shown in the figure, determine the heat lost to the cold reservoir? Calculate the entropy change in the hot reservoir, the cold reservoir and the engine respectively. What is the thermal efficiency of the engine and compute the reversible Carnot efficiency? solution data: 1- hot reservoir: 484(K) 197(C) 2-Heat: 540(J) 3-Useful work: 240(J) 4-Cold reservoir: 316(K) 68(C)

4. A typical heat engine shown in the figure, determine the heat lost to the cold reservoir? Calculate the entropy change in the hot reservoir, the cold reservoir and the engine respectively. What is the thermal efficiency of the engine and compute the reversible Carnot efficiency? solution data: 1- hot reservoir: 484(K) 197(C) 2-Heat: 540(J) 3-Useful work: 240(J) 4-Cold reservoir: 316(K) 68(C)

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 12RQ: Refrigerators currently being manufactured in the United States are using______as their refrigerant.

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