On a cold day, a heat pump absorbs heat from the outside air at 14°F (−10°C) and transfers it into a home at a temperature of 86

Question

4 years ago

14

°F (30°C). Determine the maximum κ of the heat pump.

1 answer:

Leto [7] · Answer 1 · 2021-12-17T08:48:48+03:00

Leto [7]4 years ago

7 0

Answer:

6.575

Explanation:

T1 = 30C = 30 + 273 = 303 K

T2 = - 10 C = - 10 + 273 = 263 K

The coefficient of performance of heat pump

k = T2 / (T1 - T2)

k = 263 / (303 - 263) = 6.575