SSC JE Mechanical Engineering 27 Sep 2019 Shift 1 Paper

Question : 198 of 200

Marks: +1, -0

A water heating heat pump abstracting 10 kW of heat from the atmosphere requires 2 kW of power input. The COP of the heat pump is:

Solution:

Given:

{Q}_{2}=10 {kW}

and

{W}_{\text "in "}=2 {kW}

{COP}={{Q}_{1}}/{{W}}={{Q}_{2}+{W}}/{{W}}={10+2}/{2}=6

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