. A wall consists of a long 18-cm x 30-cm cross section of horizontal bricks (k = 0.72 W/m · °C) separated by 3-cm-thick plaster layers (k = 0.22 W/m · °C). There are also 2-cm-thick plaster layers on each side of the wall, and a 2-cm-thick rigid foam (k = 0.026 W/m · °C) on the inner side of the wall. The indoor and the outdoor temperatures are 22°C and 4°C, and the convection heat transfer coefficients on the inner and the outer sides are h 1 = 10 W/m 2 · °C and h 2 = 20 W/m 2 · °C, respectively. Assuming one-dimensional heat transfer, determine the rate of heat transfer through the given section of the wall. ASSUME THAT THE DEPTH OF THE WALL IS 1 METER
. A wall consists of a long 18-cm x 30-cm cross section of horizontal bricks (k = 0.72 W/m · °C) separated by 3-cm-thick plaster layers (k = 0.22 W/m · °C). There are also 2-cm-thick plaster layers on each side of the wall, and a 2-cm-thick rigid foam (k = 0.026 W/m · °C) on the inner side of the wall. The indoor and the outdoor temperatures are 22°C and 4°C, and the convection heat transfer coefficients on the inner and the outer sides are h 1 = 10 W/m 2 · °C and h 2 = 20 W/m 2 · °C, respectively. Assuming one-dimensional heat transfer, determine the rate of heat transfer through the given section of the wall. ASSUME THAT THE DEPTH OF THE WALL IS 1 METER
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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9. A wall consists of a long 18-cm x 30-cm cross section of horizontal bricks (k = 0.72 W/m · °C) separated by 3-cm-thick plaster layers (k = 0.22 W/m · °C). There are also 2-cm-thick plaster layers on each side of the wall, and a 2-cm-thick rigid foam (k = 0.026 W/m · °C) on the inner side of the wall. The indoor and the outdoor temperatures are 22°C and 4°C, and the convection heat transfer coefficients on the inner and the outer sides are h 1 = 10 W/m 2 · °C and h 2 = 20 W/m 2 · °C, respectively. Assuming one-dimensional heat transfer, determine the rate of heat transfer through the given section of the wall. ASSUME THAT THE DEPTH OF THE WALL IS 1 METER
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