A building window pane that is 1.68 m high and 1.12 m wide is separated from the ambient air by a storm window of the same height and width. The air space between the two windows is 0.06 m thick. If the building and storm windows are at 20 and -10°C, respectively, what is the rate of heat loss by free convection across the air space, in W?

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A building window pane that is 1.68 m high and 1.12 m wide is separated from the ambient air by a storm window of the same height and width. The air space between the
two windows is 0.06 m thick. If the building and storm windows are at 20 and -10°C, respectively, what is the rate of heat loss by free convection across the air space, in
W?
q =
W
Transcribed Image Text:A building window pane that is 1.68 m high and 1.12 m wide is separated from the ambient air by a storm window of the same height and width. The air space between the two windows is 0.06 m thick. If the building and storm windows are at 20 and -10°C, respectively, what is the rate of heat loss by free convection across the air space, in W? q = W
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