What is difference between heat pump and refrigerator? Derive the relation for COP between heat pump and refrigerator.

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written 5.9 years ago by

shaikhrehan227 • 410

modified 5.9 years ago by

abhishektiwari1 • 100

Subject:- Refrigeration and Air Conditioning

Topic:- Introduction to Refrigeration

Difficulty:- Low

refrigeration and air conditioning

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1 Answer

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written 5.9 years ago by

shaikhrehan227 • 410

Relationship for COP between refrigerator and heat pump

COP of Pump = Ratio of heat transferred to work done.

= Qh/W … i

COP of refrigerater = Ratio of heat removed to work done.

= Ql/W … ii

By first law, Qh = W + Ql

Put in i

(W + QL)/W = 1+ Cop ref (from ii)

So,

COP pump = 1 + COP ref

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