Question: A house is heated and maintained at 25oC by a heat pump. Determine the maximum possible COP if heat is extracted from the outside atmosphere

A house is heated and maintained at 25oC by a heat pump. Determine the maximum possible COP if heat is extracted from the outside atmosphere at
(a) 10oC,
(b) 0oC,
(c) -10oC.
(d) -40oC.
(e) Based on these results, would you recommend heat pumps at locations with a severe climate?

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