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  1. IRmechEman

    Refrigerant COP Comparison Question

    For a given ideal refrigeration cycle with an evaporator temperature of -20 deg C and condenser temperature of 40 deg C, what is responsible for the COP differences between R-12, R-22, and R-410A? After setting it up in EES, I get COPs of 3.174, 3.149, and 2.915, respectively. I am trying to...

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