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目前常见的单层定型相变材料,在室内或者室外使用往往只能在夏季或冬季发挥作用,为改善全年室内热环境,降低全年建筑运行能耗,且减少墙体改装面积,本项目提出一种新型的双层定型相变墙体,具体做法为在建筑物外墙内外表面均添加定型相变材料板,外层相变板具有较高的相变温度,在夏季发挥作用,内层相变板具有较低的相变温度,在冬季发挥作用。本文中的双层定型相变墙板用于建筑南外墙,该研究主要分析了相变材料厚度、相变温度对建筑运行能耗和建筑室内热环境的影响,最后根据节能率性及经济性因素得出了相变墙板的推荐使用厚度及其对应的相变温度,为该结构在建筑节能中的应用提供技术支持。
At present, single-layer stereotyped phase change materials are often used only indoors or outdoors to play a role in summer or winter. In order to improve the indoor thermal environment throughout the year, reduce the annual energy consumption of building operation and reduce the wall modification area, A new type of double-deck stereotyped phase-change wall is put forward by adding a shape-changing phase-change material plate on the inner and outer surfaces of the outer wall of the building. The outer phase change plate has a higher phase transition temperature and functions in the summer. Layer phase change plate has a lower phase transition temperature, play a role in winter. In this paper, the double-deck stereotyped phase-change wall panels are used for the construction of the southern wall. The study mainly analyzes the influence of phase-change material thickness, phase transition temperature on building operating energy consumption and building indoor thermal environment. Finally, according to energy saving rate and economy The factors of the phase transition wall thickness and the corresponding phase transition temperature obtained for the structure in the building energy-saving applications to provide technical support.