A typical section of a building wall is shown in Fig. P366. This section extends in and
Question:
A typical section of a building wall is shown in Fig. P3–66. This section extends in and out of the page and is repeated in the vertical direction. The wall support members are made of steel (k = 50 W/m · K). The support members are 8 cm (t23) 3 0.5 cm (LB). The remainder of the inner wall space is filled with insulation (k = 0.03 W/m · K) and measures 8 cm (t23) × 60 cm (LB). The inner wall is made of gypsum board (k = 0.5 W/m · K) that is 1 cm thick (t12) and the outer wall is made of brick (k = 1.0 W/m · K) that is 10 cm thick (t34). What is the average heat flux through this wall when T1 = 20°C and T4 = 35°C?
Figure P3-66
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To calculate the average heat flux through the wall we can use the following equation q T1 T4 R1 R2 ...View the full answer
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Related Book For 
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar
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