Answered: The motor of a certain refrigerator…

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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The motor of a certain refrigerator operates with a power of ¼ HP. As a result, the internal temperature of the refrigerator reaches – 20.0 °C, against a maximum outdoor temperature of 35.0 °C. Taking into account that the refrigerator is old, its maximum efficiency will only reach 75% of the estimated theoretical value. What is the maximum amount of heat that will be removed from inside the cooler if the engine runs for 45 minutes. Data:

1 HP → 10.688 kcalmin^-1; power setting: how quickly work gets done.

Ta > T
Heat source at temperature T,
Q-Energy in the form of heat
entering the hot spring
W-work done
Refrigerating Machine
Q - Energy in the form of heat
coming out of the cold source
Heat source at temperature T,

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The Cop of the pump is

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