|Oct5-11, 06:20 PM||#1|
Negativ Coefficients of Performance? Is it possible?
I'm doing some calculations for a refrigeration cycle were investigating in a lab. I've been out of thermodynamics for a while now and have some questions on coefficients of performance (COP)
I've calculated the COP using the enthalpies (h) at the four state points and I'm getting a negative COP (-.02). I don't remember much from thermo, but I "think" its ok to have it negative (gut feeling), but I honestly couldnt tell you why. Any info will be appreciated.
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