The Efficiency of an Ideal Refrigerator
Recently, doubt has been expressed as to the justification of using the Carnot efficiency as a basis for comparing real refrigerators with an ideal. The question arises because the Carnot refrigerator has an isothermal load, while some real machines do not. If, for example, a Carnot efficiency based upon the lowest temperature of the load is used, an ideal with too low a performance is used. The purpose of this paper is to derive an expression for the efficiency of ideal refrigerators with nonisothermal loads, and to show that this efficiency can differ appreciably from the Carnot efficiency.
KeywordsMass Flow Rate Usual Expression Energy Sink Carnot Efficiency Average Specific Heat
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