A/A heat pump is used to meet the heating requirements of a house and maintain it at 20 C°. On a day when the outdoor air temperature drops to - 2 C, the house is estimated to lose heat at a rate of 80,000 kJ/h. If the heat pump under these conditions has a COP of 2.5, determine (a) the power consumed by the heat pump and (b) the rate at which heat is absorbed from the cold outdoor air. House 20°C Heat loss 80,000 kJ/h COP = 2.5 HP Outdoor air at -2 C

A/A heat pump is used to meet the heating requirements of a house and maintain it at 20 C°. On a day when the outdoor air temperature drops to - 2 C, the house is estimated to lose heat at a rate of 80,000 kJ/h. If the heat pump under these conditions has a COP of 2.5, determine (a) the power consumed by the heat pump and (b) the rate at which heat is absorbed from the cold outdoor air. House 20°C Heat loss 80,000 kJ/h COP = 2.5 HP Outdoor air at -2 C

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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