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本文以空气含湿量和温度为驱动势建立模型对南方地区典型多层墙体进行了动态模拟。在主模型中,将太阳辐射总热量分解,得到了建筑不同朝向外墙的太阳辐射得热量,进而分析了在太阳辐射影响下墙体的热湿性能;在子模型中,不考虑太阳辐射得热对墙体热湿性能的影响。将模拟结果同实验测试数据进行对比后可知,太阳辐射得热对多层墙体外层的温度影响较明显,而墙体温度的升高会造成墙体内空气含湿量的增大。
In this paper, the air humidity and temperature as the driving force to establish a model for the southern region of the typical multilayer wall dynamic simulation. In the main model, the total heat of solar radiation is decomposed, and the solar radiation heat gain of the building facing the exterior wall is obtained, and then the thermal and moisture properties of the wall under the influence of solar radiation are analyzed. In the sub-model, the solar radiation is not considered Effect of heat on the heat and moisture performance of the wall. Comparing the simulation results with the experimental data, it can be seen that the solar radiation has an obvious effect on the temperature of the outer layer of the multi-layer wall, while the increase of the wall temperature will cause the increase of the air moisture content in the wall.