Compute the ratio of the rate of heat loss through asingle-pane window with area 0.15 m2 to that for a double-pane windowwith the same area. The glass of a single pane is 4.2 mm thick,and the air space between the two panes of the double-pane window is7.0 mm thick. The glass has thermal conductivity 0.80 W /m . K. The airfilms on the room and outdoor surfaces of either window have a combinedthermal resistance of 0.15 m2 . K/W.
Compute the ratio of the rate of heat loss through asingle-pane window with area 0.15 m2 to that for a double-pane windowwith the same area. The glass of a single pane is 4.2 mm thick,and the air space between the two panes of the double-pane window is7.0 mm thick. The glass has thermal conductivity 0.80 W /m . K. The airfilms on the room and outdoor surfaces of either window have a combinedthermal resistance of 0.15 m2 . K/W.
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Compute the ratio of the rate of heat loss through a
single-
pane window with area 0.15 m2 to that for a double-pane window
with the same area. The glass of a single pane is 4.2 mm thick,
and the air space between the two panes of the double-pane window is
7.0 mm thick. The glass has thermal conductivity 0.80 W /m . K. The air
films on the room and outdoor surfaces of either window have a combined
thermal resistance of 0.15 m2 . K/W.
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