Consider the composite wall of 3.13 under conditions for

Chapter , Problem 3.14

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Consider the composite wall of 3.13 under conditions for which the inside air is still characterized by T,i 20 C and hi 30 W/m2 K. However, use the more realistic conditions for which the outside air is characterized by a diurnal (time) varying temperature of the form with ho 60 W/m2 K. Assuming quasi-steady conditions for which changes in energy storage within the wall may be neglected, estimate the daily heat loss through the wall if its total surface area is 200 m2 .

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