EPS外保温墙热湿传递的影响因素研究  

Factors Affecting Coupled Heat and Moisture Transfer in EPS External Insulation Walls

作　　者：刘琦[1] 梁超锋[1] 白文辉[1] 

机构地区：[1]绍兴文理学院工学院,浙江绍兴312000

出　　处：《绍兴文理学院学报》2012年第10期1-6,共6页Journal of Shaoxing University

基　　金：国家自然科学基金面上项目(40772194;40972203);浙江省自然科学基金项目(Y1110184);浙江省教育厅项目(Y200907726);绍兴市科技计划项目(2009A23014)

摘　　要：针对不同的聚苯板(EPS)板厚、饰面层及室内相对湿度(RH),利用CHAPMS-BES软件,研究了夏热冬冷地区EPS复合外保温墙的热湿耦合传递规律.结果表明,EPS板厚越小,其峰值含湿量越小,水分对墙体传热系数的影响越显著;室内相对湿度对EPS板的峰值含湿量和墙体的最大传热系数影响非常有限;釉面砖饰面时,多孔砖层的初始水分将在釉面砖内侧积聚,水分对墙体传热系数的影响程度高达54%.The climate in the hot summer and cold winter area considered, the simulation was carried out for dif-ferent thickness of expanded polystyrene （EPS） board, different indoor relative humidity and different screed fin-ish layer by using the CHAMPS - BES software. The results show that with the decreased thickness of the EPS board, the smaller the maximum moisture content of the board, the more remarkable effect of moisture on the heat transfer coefficient of the wall. The indoor relative humidity has little effect on the maximum moisture content of the ESP board and the maximum heat transfer coefficient of the wall. When the wall~ s screed finish layer is the glazed of the crease lacing tile, the initial moisture in the porous brick transfers towards outdoor and accumulates at the inside glazed facing tile. This causes the peak heat transfer coetlicient of the EPS external insulation brick to in-about fifty-four percent compared with the steady heat transfer coefficient.

关 键 词：相对湿度 热湿耦合传递 数值分析 

分 类 号：TU111.4[建筑科学—建筑理论]