b) On a winter day when the average outdoor temperature remains at about 4°C, the house is estimated to lose heat at a rate of 62,000 kJ/h. For this reason a Carnot heat pump is used to heat a house and maintain it at 23°C. If the heat pump consumes 6 kW of power while operating, determine (a) how long the heat pump ran on that day; (b) the amount of heat removed from surrounding (QL); and (c) the total heating costs, assuming an average price of 6.5¢/kWh for electricity (d) the heating cost for the day if res istance heating is used instead of a heat pump assuming an average price of 6.5¢/kWh for electricity.

b) On a winter day when the average outdoor temperature remains at about 4°C, the house is estimated to lose heat at a rate of 62,000 kJ/h. For this reason a Carnot heat pump is used to heat a house and maintain it at 23°C. If the heat pump consumes 6 kW of power while operating, determine (a) how long the heat pump ran on that day; (b) the amount of heat removed from surrounding (QL); and (c) the total heating costs, assuming an average price of 6.5¢/kWh for electricity (d) the heating cost for the day if res istance heating is used instead of a heat pump assuming an average price of 6.5¢/kWh for electricity.

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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