Consider a 1.2-m-high and 2-m-wide double-pane window consisting of two 3-mm-thick layers of glass (k=0.78 W/m.oC) separated by a 12-mm-wide stagnant air space (k=0.026 W/m.oC). determine the steady rate of heat transfer through this double-pane window and the temperature of its inner surface for a day during which the room is maintained at 24 oC while the temperature of the outdoors is – 5 oC. Take the convection heat transfer coefficients on the inner and outer surface of the window to be h1 = 10 W/m2.oC and h2 = 25 W/m2.oC, and disregard any heat transfer by radiation.
Consider a 1.2-m-high and 2-m-wide double-pane window consisting of two 3-mm-thick layers of glass (k=0.78 W/m.oC) separated by a 12-mm-wide stagnant air space (k=0.026 W/m.oC). determine the steady rate of heat transfer through this double-pane window and the temperature of its inner surface for a day during which the room is maintained at 24 oC while the temperature of the outdoors is – 5 oC. Take the convection heat transfer coefficients on the inner and outer surface of the window to be h1 = 10 W/m2.oC and h2 = 25 W/m2.oC, and disregard any heat transfer by radiation.
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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Consider a 1.2-m-high and 2-m-wide double-pane window consisting of two 3-mm-thick layers of glass (k=0.78 W/m.oC) separated by a 12-mm-wide stagnant air space (k=0.026 W/m.oC). determine the steady rate of heat transfer through this double-pane window and the temperature of its inner surface for a day during which the room is maintained at 24 oC while the temperature of the outdoors is – 5 oC. Take the convection heat transfer coefficients on the inner and outer surface of the window to be h1 = 10 W/m2.oC and h2 = 25 W/m2.oC, and disregard any heat transfer by radiation.
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