实现非定常物性围护结构与基于状态空间法建筑热过程耦合计算方法研究  

Study on Coupling Space-state Method Based Building Energy Model and Envelope Performance Simulation with Varying Heat Transfer Properties

作　　者：安晶晶[1] 燕达[1] 吴如宏[1] 孙红三[1] AN Jingjing;YAN Da;WU Ruhong;SUN Hongsan(Building Energy Research Center,Tsinghua University,Beifing 100084,China)

机构地区：[1]清华大学建筑节能研究中心,北京100084

出　　处：《建筑科学》2018年第10期121-129,共9页Building Science

基　　金："十三五"国家重点研发计划课题"建筑全性能联合仿真平台内核开发"(2017YFC0702204)

摘　　要：双层皮玻璃幕墙、种植屋面、蓄热相变墙体等新型围护结构具有良好的保温隔热、维持舒适的室内热环境的特征,其节能潜力得到了广泛的认可。随着新型围护结构方面的研究日益增多,此类技术也日益完善,在建筑中得到一些应用,因此,在建筑能耗模拟过程中需要考虑到新型围护结构。新型围护结构热(质)传递等物理过程均为非定常物性的动态热(质)传递过程,常采用有限差分法进行求解。应用有限差分法实现采用新型围护结构建筑的热过程模拟计算,存在计算量大、计算时间长等问题。为提高计算速度、保证计算稳定性,本文提出了实现建筑本体中非定常物性围护结构模拟与基于状态空间法的建筑热过程耦合计算的方法,并将此算法在建筑能耗模拟DeST软件中进行实现和案例计算及校核。New wall technologies, such as double skin fa？ade, phrase change material wall, green roof, have better thermal performance than common walls, and can help to build a more comfort indoor environment, which have been recognized as energy-saving measures in buildings. With the development of these wall technologies, some buildings have applied them in reality. Therefore, it is necessary to consider these new wall technologies in building energy modeling. Building energy modelling of these new wall materials is inherently more difficult because of varying heat transfer properties, thus finite difference method is always used. Due to the large amounts of computation and long computation time of finite difference method, this study proposed a modeling method of coupling space-state method based building energy model and envelope performance simulation with varying heat transfer properties, and realized it in building energy modeling software DeST. In addition, this study also verified the feasibility and veracity of it via results comparisons in case models.

关 键 词：非定常物性围护结构 DeST 建筑热过程模拟 状态空间法 相变材料 

分 类 号：TU119[建筑科学—建筑理论]