Chapter 5, Problem 5.4NP

Interpretation Introduction

Interpretation:

The heat that can be extracted from a house in a day needs to be determined if the coefficient of performance of the air conditioner is 2.20 and it consumed $1.70\times {10}^3\text{ W}$ of electrical power.

Concept Introduction:

The Coefficient of Performance ( ${\text{η}}_{\text{r}}$ ) of a reversible Carnot refrigerator is defined as the ratio of the heat withdrawn from the cold reservoir to the work supplied to the device.

  ${\text{η}}_{\text{r}}\text{=}\frac{{\text{q}}_{\text{cold}}}{\text{w}}\mathrm{.................}(1)$

Here,

  ${\text{η}}_{\text{r}}$: Coefficient of Performance of reversible Carnot refrigerator.

q_cold: Heat withdrawn from the cold reservoir.

w: Work is done by the reversible Carnot refrigerator.