Two reversible engines operate in series between a high-temperature (TH) and a low-temperature (T) reservoir. Engine A rejects heat to engine B, which in tum rejects heat to the low-temperature reservoir. The high-temperature reservoir supplies heat to engine A. Let T,= 1000°K and T. - 400°K and the engine thermal efficiencies are equal. The heat received by engine A is 500 kJ. Determine: a) the temperature of heat rejection by engine A in K, b) the work of engine A and B in kJ, and c) the cycle efficiency.

Two reversible engines operate in series between a high-temperature (TH) and a low-temperature (T) reservoir. Engine A rejects heat to engine B, which in tum rejects heat to the low-temperature reservoir. The high-temperature reservoir supplies heat to engine A. Let T,= 1000°K and T. - 400°K and the engine thermal efficiencies are equal. The heat received by engine A is 500 kJ. Determine: a) the temperature of heat rejection by engine A in K, b) the work of engine A and B in kJ, and c) the cycle efficiency.

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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