During winter, a mechanical heat pump is turned on to supply heat to a house, which is maintained at 18°C. The wall of this house is not perfectly insulated and estimated to have heat loss at a rate of 140,000 kJ/h. The house has electrical appliances that are always turn on, and generate heat at a rate of 27,000 kJ/h. Assume that the mechanical heat pump is reversible and the outdoor temperature is 2°C. List the necessary assumption, sketch the appropriate schematic to visualize the process and calculate the coefficient of performance (COP) for this mechanical heat pump.
During winter, a mechanical heat pump is turned on to supply heat to a house, which is maintained at 18°C. The wall of this house is not perfectly insulated and estimated to have heat loss at a rate of 140,000 kJ/h. The house has electrical appliances that are always turn on, and generate heat at a rate of 27,000 kJ/h. Assume that the mechanical heat pump is reversible and the outdoor temperature is 2°C. List the necessary assumption, sketch the appropriate schematic to visualize the process and calculate the coefficient of performance (COP) for this mechanical heat pump.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:During winter, a mechanical heat pump is turned on to supply heat to a house,
which is maintained at 18°C. The wall of this house is not perfectly insulated and
estimated to have heat loss at a rate of 140,000 kJ/h. The house has electrical
appliances that are always turn on, and generate heat at a rate of 27,000 kJ/h.
Assume that the mechanical heat pump is reversible and the outdoor temperature
is 2°C. List the necessary assumption, sketch the appropriate schematic to
visualize the process and calculate the coefficient of performance (COP) for this
mechanical heat pump.
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