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For a wall that has a thermal conductivity of 4.80 BTU/ft. hr. F°, the surface area is equal to 3 m^2. The temperature difference is equal to 26F°.The thickness of the wall 400 mm. Determine the following: The total heat loss in 7 hours in BTU A ssume that all the conditions vvere retained evcent that the area was reduced to 2 m^2

For a wall that has a thermal conductivity of 4.80 BTU/ft. hr. F°, the surface area is equal to 3 m^2. The temperature difference is equal to 26F°.The thickness of the wall 400 mm. Determine the following: The total heat loss in 7 hours in BTU A ssume that all the conditions vvere retained evcent that the area was reduced to 2 m^2

Elements Of Electromagnetics
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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2) For a wall that has a thermal conductivity of 4.80 BTU/ft. hr. F°, the surface area is equal to 3 m^2. The temperature difference is equal to 26F°.The thickness of the wall is 400 mm. Determine the following: a. The total heat loss in 7 hours in BTU b. Assume that all the conditions were retained except that the area was reduced to 2 m^2, what is the percentage reduction in the rate of heat transfer through the wall. c. Explain the concepts/principles that were considered and the factors that affected the condition of the above mentioned items (a & b).
Transcribed Image Text:2) For a wall that has a thermal conductivity of 4.80 BTU/ft. hr. F°, the surface area is equal to 3 m^2. The temperature difference is equal to 26F°.The thickness of the wall is 400 mm. Determine the following: a. The total heat loss in 7 hours in BTU b. Assume that all the conditions were retained except that the area was reduced to 2 m^2, what is the percentage reduction in the rate of heat transfer through the wall. c. Explain the concepts/principles that were considered and the factors that affected the condition of the above mentioned items (a & b).
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