- Home
- Refrigeration and Air Conditioning
- Refrigeration Cycles and Devices
- Heat Engine, Heat Pump and Refrigerator

This question was previously asked in

ISRO LPSC Technical Assistant Mechanical held on 23/02/2020

- 3
- 4
- 6.5
- 7.5

Option 2 : 4

Free

ST 1: General Awareness

6967

15 Questions
15 Marks
15 Mins

__Concept__:

As there is no mention that it works on the Carnot cycle, therefore the **COP of Heat Pump is given by,**

**\(COP = \frac{{Heat\;rejection}}{{Heat\;rejection - Heat\;addition}}\)**

__Calculation__:

__Given__:

Q_{add} = 750 kW, Q_{rej }= 1000 kW, T_{H} = 30°C, T_{L} = 15°C

∴ \(COP~=~\frac{1000}{1000-750}\)

**COP = 4**

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