Consider a wall that consists of two layers, A and B, with the following values: kA =
Question:
Consider a wall that consists of two layers, A and B, with the following values: kA = 0.8 W/m · K, LA = 8 cm, kB = 0.2 W/m · K, LB = 5 cm. If the temperature drop across the wall is 18°C, the rate of heat transfer through the wall per unit area of the wall is
(a) 180 W/m2
(b) 153 W/m2
(c) 89.6 W/m2
(d) 72 W/m2
(e) 51.4 W/m2
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Related Book For 
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar
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