双层相变墙体在武汉某空调房间应用的结构优化

关键字：双层相变墙体,室内热环境,冷热负荷

（华中科技大学，湖北 武汉  430074）

    摘要：相对只在冬季或夏季发生作用的单层相变墙体，双层相变墙体可以在全年起到改善室内热环境、降低建筑运行能耗的作用。为了对双层相变墙体的结构进行优化，采用TRNSYS软件对2种不同结构的双层相变墙体在武汉某空调房间冬、夏季的运行工况进行了模拟。结果显示：2种结构在冬季均能有效降低热负荷，且节能效果相似；而对于夏季，高温相变层位于墙体室内一侧相对于位于墙体室外一侧的结构，夏季冷负荷减小更显著。
    关键词：双层相变墙体；室内热环境；冷热负荷
    中图分类号：TU52          文献标识码：A          文章编号：1001-702X（2017）05-0101-07

Study on structure optimization of the double layer phase change wall in air conditioned room in Wuhan
WU Mengdu，ZHU Na，HU Pingfang，LI Shanshan，HU Naishuai
（Huazhong University of Science ＆ Technology，Wuhan 430074，China）

    Abstract：Compared with the single layer phase change material wall which only works in winter or summer，double layer phase change material wall can improve the indoor thermal environment as well as reduce the building energy consumption for the whole year. In order to optimize the structure of the double layer phase change material wall，TRNSYS was used to simulate the operating conditions of the double layer phase change material wall，with two different structure in winter and summer at air conditioned room in Wuhan. The results show that the two structures can effectively reduce the heat load in winter，and the effect is similar. While in summer，the decrease of the cooling load is significant when the phase change layer with higher phase change temperature is located on the indoor side of the wall，compared with on the outdoor side of the wall.
    Key words：double layer phase change material wall，indoor thermal environment，cooling/heating load