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建立以相对湿度和温度为驱动势的多层墙体的热湿耦合传递数学模型,运用COMSOL软件求解热湿耦合迁移方程,以水泥砂浆—混凝土(黏土砖)—水泥砂浆多层墙体为例,分析了多层墙体在热湿环境下的温度分布和相对湿度分布。结果发现:在外表面区域混凝土墙体温度低于黏土砖墙体,在内表面区域混凝土墙体高于黏土砖墙体,而相对湿度的分布正好相反,黏土砖墙体的保温隔热作用更好,有利于降低建筑的能耗损失。
The mathematic model of heat and moisture coupling of multi-story wall driven by relative humidity and temperature is established. COMSOL software is used to solve the heat and moisture coupling migration equation. Taking cement mortar-concrete (clay brick) -sized cement mortar as an example , Analyzed the temperature distribution and relative humidity distribution of multi-wall in hot and humid environment. The results show that the temperature of the concrete wall in the outer surface area is lower than that of the clay brick wall, the concrete wall in the inner surface area is higher than that of the clay brick wall, and the relative humidity distribution is opposite, and the thermal insulation effect of the clay brick wall is better. , Help to reduce the building’s energy consumption.