A small house that is kept at 20C inside loses 12 kW to the outside ambient at
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A small house that is kept at 20◦C inside loses 12 kW to the outside ambient at 0◦C. A heat pump is used to help heat the house together with possible electric heat. The heat pump is driven by a 2.5-kW motor, and it has a COP that is one-fourth that of a Carnot heat pump unit. Find the actual COP for the heat pump and the amount of electric heat that must be used (if any) to maintain the house temperature.
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The coefficient of performance COP of a heat pump is given by COP Qc W where Qc is the heat ...View the full answer
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Related Book For 
Fundamentals Of Thermodynamics
ISBN: 9781118131992
8th Edition
Authors: Claus Borgnakke, Richard E. Sonntag
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