Thermal comfort in a building with Trombe wall integrated with phase change materials in hot summer and cold winter region without air conditioning

作     者：Jie Li Yuan Zhang Ziyang Zhu Jiangtian Zhu Jing Luo Fen Peng Xiaoqin Sun 

作者机构：School of Energy and Power EngineeringChangsha University of Science and TechnologyChangshaHunan 410114PR China 

出 版 物：《Energy and Built Environment》 (能源与人工环境(英文))

年 卷 期：2024年第5卷第1期

页      面：58-69页

核心收录：

学科分类：080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Key Research and Devel-opment Program of China(2018YFE0111200) the National Natural Science Foundation of China(52078053,51608051) the Science and Technology Department of Hunan(2019JJ30027,2020GK4057) the Changsha City Fund for Distinguished and Innovative Young Scholars(kq2106036) the Hunan Provincial Science and Technology Depart-ment(2020WK2012,2021JJ40584) the Education Department of Hu-nan Province(19C0073) the Chenzhou Municipal Science and Tech-nology Bureau(2021SFQ01) 

主　　题：Trombe wall Phase change materials Integrated indoor discomfort duration Integrated discomfort degree-hour Liquid fraction 

摘      要：Trombe wall and phase change materials(PCMs)are two effective ways to regulate indoor thermal ***,Trombe wall surfers from overheating in summer and PCMs suffer from low heat transfer rate caused by the limited thermal *** compensate the shortcomings of the two methods,this paper proposed a Trombe wall system integrated with *** on a light-weight building envelope in Changsha,China,the thermal comfort of 10 kinds of Trombe wall systems with PCMs with a melting temperature of 18-28℃ were *** the integrated indoor discomfort duration(I_(D)),integrated indoor discomfort degree-hour(I_(DH)),indoor air temperature(T_(in)),PCM liquid fraction(γ)and heat flux across wall(q)as evaluation indexes,the indoor thermal comfort was assessed in hot summer and cold winter *** show that the Trombe wall helped PCMs complete the phase change process *** wall with PCM25 next to the wall inner surface possessed the lowest annual I_(D) and I_(DH),as 2877 h and 12,974℃·h,*** with the values in a traditional building,the I_(D) and I_(DH) were reduced by 7.01% and 14.14%.In order to give full play to the heat storage and heat release of the Trombe wall with PCMs,PCMs with phase change temperature 7℃ lower than the peak ambient temperature in summer or 8℃ higher than the winter night temperature was recommended according to regional climate conditions.