Chapter 15, Problem 29P

To determine

To find : Maximum coefficient of performance.

Answer to Problem 29P

  $5.73$

Explanation of Solution

Given:

  $T_H=30°\text{C}$

  $T_L=-15°\text{C}$

Formula Used :

The coefficient of performance is,

  $COP=\frac{T_L}{T_H-T_L}$

Calculation :

Substituting the values,

  $COP=\frac{-15+273}{30+15}$

  $COP=\frac{258}{45}$

  $COP=5.73$