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A stab of thermal conductivity9.35 W/m.K and thickness 15 cm has two surface temperatures of 150 Cand 45 C respectively. If the wall aren is 4.5 m, find the following: (1) the temperature gradient in the heat flow direction (2) the percentage reduction of heat transfer when a 0.5 cem layer insulation(k=0.06 W/m.K) is added to the outside of the wall

A stab of thermal conductivity9.35 W/m.K and thickness 15 cm has two surface temperatures of 150 Cand 45 C respectively. If the wall aren is 4.5 m, find the following: (1) the temperature gradient in the heat flow direction (2) the percentage reduction of heat transfer when a 0.5 cem layer insulation(k=0.06 W/m.K) is added to the outside of the wall

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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A stab of thermal conductivity9.35 Wim.Kand thickness 15 cm has two surface temperatures of 150 Cand 45 C respectively.If the wall area is 4.5 m², find the following: (1) the temperature gradient in the heat flow direction (2) the percentage reduction of heat transfer when a 0.5 cm layer insulation(k=0.06 W/m.K) is added to the outside of the wall
Transcribed Image Text:A stab of thermal conductivity9.35 Wim.Kand thickness 15 cm has two surface temperatures of 150 Cand 45 C respectively.If the wall area is 4.5 m², find the following: (1) the temperature gradient in the heat flow direction (2) the percentage reduction of heat transfer when a 0.5 cm layer insulation(k=0.06 W/m.K) is added to the outside of the wall
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