2W04 Assignment 6 -2009 Solutions

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Unformatted text preview: of performance, & & Q H = COPHP, maxW net,in = (1.6)(1.5 kW) = 2.4 kW 7. A Carnot heat engine is used to drive a Carnot refrigerator. The maximum rate of heat removal from the refrigerated space and the total rate of heat rejection to the ambient air are to be determined. Assumptions The heat engine and the refrigerator operate steadily. Analysis (a) The highest thermal efficiency a heat engine operating between two specified temperature limits can have is the Carnot efficiency, which is determined from η th, max = η th, C = 1 − 300 K TL = 1...
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