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Ksivusya [100]
3 years ago
10

A heat pump designer claims to have an air-source heat pump whose coefficient of performance is 1.8 when heating a building whos

e interior temperature is 300 K and when the atmospheric air surrounding the building is at 260 K. Is this claim valid
Engineering
1 answer:
Anit [1.1K]3 years ago
3 0

Answer:

The claim is valid.

Explanation:

Let assume that heat pump is reversible. The coefficient of performance for the heat pump is:

COP_{HP} = \frac{T_{H}}{T_{H}-T_{L}}

COP_{HP} = \frac{300\,K}{300\,K-260\,K}

COP_{HP} = 7.5

The claim is valid as real heat pumps have lower coefficients of performance.

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