Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 4 (Q.No. 7)
7.
If the evaporator temperature is kept constant, the coefficient of performance of a refrigeration cycle __________ with the increase in condenser temperature.
increases
decreases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Sai said:   8 years ago
COP means RE/W(input).

So by increasing the condenser temperature and keeping the evaporator temp const, Pressure ratio increases so compressive work will be high.
Therefore cop decreases.

Gaurav said:   1 decade ago
COP = TL/TH-TL.

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