一种新型木结构墙体的热湿性能分析

以多孔介质传热传质学为基础,以墙体内的空气含湿率和温度为驱动势建立了多层墙体中的一维瞬态热湿耦合传递方程.以长沙地区为例,分析了我国南方热湿气候地区一种新型木结构墙体的热湿分布规律.分析结果表明,在热湿气候地区推广应用该墙体需要注意玻璃纤维内部冷凝问题,并提出了解决办法.

Analysis of the Hygrothermal Performance of a New Timber Structure Wall

Based on the heat and moisture transfer through porous media, a 1-D transient hygrothermal model for multilayer wall was established by using air humidity ratio and temperature as the driving potentials. Taking Changsha region as an example, the distribution of temperature and air humidity ratio inside this new timber structure wall was obtained. The analysis results have indicated that the problem of condensation at glass fiber insulation should be noted when this kind of timber structure is popularized in hot-humid climate regions. Some reasonable measures have been proposed to prevent condensation problems.