6. A heat pump absorbs heat from the cold outdoors at 3°C and supplies heat to a house at 20°C at a rate of 30,000 kJ/h. If the power consumed by the heat pump is 3 kW, coefficient of performance of the heat pump is the

6. A heat pump absorbs heat from the cold outdoors at 3°C and supplies heat to a house at 20°C at a rate of 30,000 kJ/h. If the power consumed by the heat pump is 3 kW, coefficient of performance of the heat pump is the

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.46P

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6. A heat pump absorbs heat from the cold outdoors at 3°C and supplies heat to a house at
20°C at a rate of 30,000 kJ/h. If the power consumed by the heat pump is 3 kW, the
coefficient of performance of the heat pump is
(a) 0.36
(b) 1.18
(c) 16.2
(d) 2.78

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