scientist claims to have developed a refrigerator that produces a 350 kW cooling effect for a 3 oC cooling zone while only using 70 kW of power and removing the heat to the surroundings at 25 oC. i. Justify the validity of this claim with your calculation

scientist claims to have developed a refrigerator that produces a 350 kW cooling effect for a 3 oC cooling zone while only using 70 kW of power and removing the heat to the surroundings at 25 oC. i. Justify the validity of this claim with your calculation

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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You are considering two heaters in your house which must provide 10kW of heating. You expect to run it for 100 days per year, 16 hours per day. The first heater is gas and has an effiency of 40% but gas costs .01 cents per kWhr (kilowatt - hour) The electric heater is 82% efficient but the cost of electricity is .03 cents per kWhr Which is the cheaper option?
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