Home › Previous year questions › GATE 2021 AR › Question 30GATE 2021 AR – Question 30 Building Services · Air-Conditioning systems · 1 mark · Multiple choice
Coefficient of Performance(COP) is used to calculate which listed energy-efficiency measure?
Number of air changes Energy Efficiency Ratio Energy Select Sector index Indoor Air Quality index Practise this question in The GATE Grind →
Show answer and explanation Correct answer: (B) Energy Efficiency Ratio
Explanation COP relates useful thermal output to energy input. The corresponding cooling EER expresses the capacity-to-input ratio in a different unit convention, with EER≈3.412×COP for the same cooling basis. Thus B. Heating COP and cooling COP must not be interchanged without accounting for their different useful-output definitions.
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