Allied & ICAR Exam Bank • ALLIED_0729 NAT • 2 Marks

Section 7: Dairy and Food Engineering

Refrigeration and Freezing

Subtopic: Refrigeration and Freezing

Question Statement:

A Carnot refrigerator maintains a cold room at $T_L = -3^\circ\text{C}$ ($270\text{ K}$) while rejecting heat to the ambient at $T_H = 27^\circ\text{C}$ ($300\text{ K}$). The theoretical Carnot coefficient of performance (COP) is:

Answer Key:

9

Step-by-Step Solution & Explanation

$COP = 270 / 30 = 9.0$.
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