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  3. 3 a house has a composite wall of wood fiberglass...

Question: 3 a house has a composite wall of wood fiberglass...

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3. A house has a composite wall of wood, fiberglass insulation, and plaster board, as indicated in the sketch. On a cold winter day, the convection heat transfer coefficients are ho-60 W/m2K and h-30 W/m2K.The total wall surface area is 350 m2. Find the k values buy using the average inside and outside temperatures in literature and/or posted property tables on e-class

Glass fiber blanket (28 kg/m3), k Plaster board, k Plywood siding, k Inside Outside hj, To i-20°C 10 mm→-100 mm 20 mm (a) Determine a symbolic expression for the total thermal resistance of the wall, including inside and outside convection effects for the prescribed conditions. b. Determine the total heat loss through the wall. c. If the wind were blowing violently, raising ho to 300 W/mK, determine the percentage d. What is the controlling resistance that determines the amount of heat flow through the increase in the heat loss, wall?

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