境界要素法による多層平面壁の非定常熱・湿気性状の解析とその非線形性の検討

概要

論文の詳細を見る
The present paper describes linear and quasilinear boundary element solutions for coupled heat and moisture transfer of multi-layered slabs in hygroscopic regions. The purpose of this paper is to know the transient thermal and hygroscopic performances of building walls which can be used as a passive technique to control temperature and humidity within buildings. We have already proposed a boundaty element formulation for 1-dimensional transient problems of coupled heat and moisture transfer in multi-layered slabs. In this paper, we choose two typical wall constructions, and analyze thermal and hygroscopic responses of the walls caused by the step excitations of air temperature and/or humudity within the room using the proposed formulation. Linear step responses which have constant material properties are computed. Comparisons between the B. E. and analytical solutions illustrate the numerical accuracy of the results obtained by the proposed B. E. formulation We discuss the transient behaviors of walls with and without the porous insulation. Then quasilinear responses as more practical transient bihaviors, of which material properties are depend on the mean values of temperature and humidity in subdomains of the materials, are computed. We discuss the discrepancy between the linear and quasilimear responses with attension on the thermal and hygroscopic effect of the porous insulation. These results also demonstrate the flexibility and the numerical efficiency of using our proposed B. E. formulation.
社団法人日本建築学会の論文
1986-08-30

境界要素法による多層平面壁の非定常熱・湿気性状の解析とその非線形性の検討

スポンサーリンク

概要

著者

関連論文

スポンサーリンク