Q) A Carnot heat engine receives heat from a reservoir at 800 °C at a rate of 12 kJ/s and rejects the waste heat to the ambient air at 27 °C. The half entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at -4°C and transfers it to the same ambient air at 27°C. Determine: (a) The maximum rate of heat removal from the refrigerated space. (b) The total rate of heat rejection to the ambient air.

Q) A Carnot heat engine receives heat from a reservoir at 800 °C at a rate of 12 kJ/s and rejects the waste heat to the ambient air at 27 °C. The half entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at -4°C and transfers it to the same ambient air at 27°C. Determine: (a) The maximum rate of heat removal from the refrigerated space. (b) The total rate of heat rejection to the ambient air.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Q) A Carnot heat engine receives heat from a reservoir at 800 °C at a rate of 12 kJ/s and rejects the waste heat to the ambient air at
27 °C. The half entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at
-4°C and transfers it to the same ambient air at 27°C. Determine:
(a) The maximum rate of heat removal from the refrigerated space.
(b) The total rate of heat rejection to the ambient air.

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