Composite walls of a building are made of 8 cm of brick [k = 0.69 W/m·°C], 2 cm of Celotex [k = 0.048 W/m·°C], and 2 cm of asbestos cement board [k = 0.74 W/m·°C]. If the heat transfer rate is be reduced by 50% by adding Glass Wool [k = 0.038 W/m·°C] between the Celotex and asbestos cement board, what is the thickness of the added Glass Wool layer?
Composite walls of a building are made of 8 cm of brick [k = 0.69 W/m·°C], 2 cm of Celotex [k = 0.048 W/m·°C], and 2 cm of asbestos cement board [k = 0.74 W/m·°C]. If the heat transfer rate is be reduced by 50% by adding Glass Wool [k = 0.038 W/m·°C] between the Celotex and asbestos cement board, what is the thickness of the added Glass Wool layer?
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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Composite walls of a building are made of 8 cm of brick [k = 0.69 W/m·°C], 2 cm of Celotex [k = 0.048 W/m·°C], and 2 cm of asbestos cement board [k = 0.74 W/m·°C]. If the heat transfer rate is be reduced by 50% by adding Glass Wool [k = 0.038 W/m·°C] between the Celotex and asbestos cement board, what is the thickness of the added Glass Wool layer?
2.3 cm
2.1 cm
0.21 m
None of these answers
0.021 m
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