A house has a composite wall of plywood, fiberglass insulation, and plaster board, as indicated in Fig. On acold winter day the convection heat transfer coefficients are ho 60 W/m.K and h- 30 W/m².K. The totalwall surface area is 350 m . If Kp= 0.17 W/m.K, K = 0.036 W/m.K, and K: = 0.12 W/m.K.Glass fiber blanket(28 kg/m), k,Plaster board, k,- Plywood siding, k,InsideOutsideh, T= 20°Ch. T=-15°C111110 mm -100 mm 20 mmA. What are the main assumptions?B.Draw the thermal circuit representing conduction through the composite wall ?C.Drive an expression in symbol form for the total thermal resistance of the composite wall, includinginside and outside convection effects for the prescribed conditions.

Assumptions steady state no radiation / convection inside the wall

Answered: A house has a composite wall of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A house has a composite wall of plywood, fiberglass insulation, and plaster board, as indicated in Fig. On a cold winter day the convection heat transfer coefficients are ho- 60 W/m².K and h-30 W/m.K. The total wall surface area is 350 m. If Kp 0.17 W/m.K, Kb 0.036 W/m.K, and K, 0.12 W/m.K.