Computer simulation of air infiltration effects on heat transfer in multilayered walls
Chebil S. , Galanis N. and Zmeureanu R.
2003 Canadian conference on building energy simulation, September 11th - 13th, Montreal, Canada
Chebil S. , Galanis N. and Zmeureanu R., (2003), "Computer simulation of air infiltration effects on heat transfer in multilayered walls", Canadian conference on building energy simulation, September 11th - 13th, Montreal, Canada.
Abstract:
Significant thermal coupling can occur between the air infiltration and wall layers, thereby modifying the heat transmission in building envelopes. The purpose of this study is to obtain a better understanding of the air infiltration effects on the heat transfer in typical multilayered walls. This paper presents a numerical model of transient 3-D heat transfer phenomena in a wall system to evaluate the effect of outside air moving within cavities, for instance around the insulation layer. A finite difference method is used. Simulated temperature variations and heat flux responses at the inner and outer sides are presented for different wall configurations. The effect of the air leakage rate on the hea t flux is discussed.
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