Thermodynamics Carnot co-efficient of performance (COP)

The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is, less or more? Can any one help me out with an explanation...

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sunny vanza

  • Feb 21st, 2016

It is less.

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Nandita Baral

  • Mar 20th, 2017

The COP of a Refrigerator/AC would be given by expression:
COP = (Cooling Effect/Power Input).

The cooling effect produced by a refrigerator is obviously more for a refrigerator. At the same time the power consumption for refrigerator is 100- 400 Watt/hr depending on size and the the power consumption for ac (say 1.5 ton domestic) is 1676 watts;hr.

This higher power consumption in AC results in lesser COP of AC than refrigerator.

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