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    Looking for a bit of feedback for the following question:
    Compare the rate and flow of heat per unit area through a solid brick wall and that of a cavity wall, filled with insulating foam. Assume steady state conditions,parallel flow and that the outside and inside temperatures are 21 cent and 1 cent respectivley.Solid brick wall=200mm thick. Cavity wall=brickd 2x100mm thick, with 50mm cavity.talk about surface resistance too.:rolleyes: :confused:
 
 
 
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Updated: June 12, 2005
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