Glass Air 10 mm Glass 8 mm 8 mm FIGURE 11.10 The double-pane glass window of Example 11.5.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A double-pane glass window consists of two pieces of glass, each having a
thickness of 8 mm, with a thermal conductivity of k = 1.4 W⁄m ⋅ K . The two
glass panes are separated by an air gap of 10 mm, as shown in Figure 11.10 .
Assuming the thermal conductivity of air to be k = 0.025 W⁄m ⋅ K , determine
the total R-value for this window. The total thermal resistance of the window is obtained by adding the resistance offered by each pane of glass and the air gap in the following manner:

Glass
Air
10 mm
Glass
8 mm
8 mm
FIGURE 11.10
The double-pane glass window of Example 11.5.
Transcribed Image Text:Glass Air 10 mm Glass 8 mm 8 mm FIGURE 11.10 The double-pane glass window of Example 11.5.
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