Question Bank • QB_DFE_EXP_079 NAT • 2 Marks

Section 7: Dairy and Food Engineering

Preservation of Food

Subtopic: Refrigeration and cold storage basics and applications

Question Statement:

A vapor compression refrigeration system produces $7.0\text{ kW}$ of cooling while absorbing $2.0\text{ kW}$ of mechanical compressor work. Calculate the actual Coefficient of Performance (COP) of the refrigeration system.

Answer Key:

3.5

Step-by-Step Solution & Explanation

$\text{COP} = \frac{\text{Refrigerating Effect}}{\text{Work Input}} = \frac{7.0\text{ kW}}{2.0\text{ kW}} = 3.5$
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