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A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect ? | |
A. | Vapor compression cycle using expansion valve. [Wrong Answer] |
B. | Air refrigeration cycle. [Wrong Answer] |
C. | Vapor compression cycle using expansion engine. [Wrong Answer] |
D. | Carnot refrigeration cycle. [Correct Answer] |