定形相变板材制备及相变墙体热工性能研究  

Study on Preparation of Shaped Phase Change Sheet and Thermal Performance of Phase Change Wall

作　　者：刘瑞丽 高琼旻 马静[1] 王薇[1] LIU Ruili;GAO Qiongmin;MA Jing;WANG Wei(School of Civil Engineering,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]河南工业大学土木工程学院(建筑学院筹),河南郑州450001

出　　处：《郑州大学学报（工学版）》2021年第4期105-110,共6页Journal of Zhengzhou University（Engineering Science）

基　　金：河南工业大学科学研究基金(2018XTCX01);西部绿色建筑国家重点实验室开放研究基金(LSKF202113);河南省住房城乡建设科技计划项目(HNJS-2020-K03)。

摘　　要：实验制备了高性能定形相变板材,相变潜热高达152.1 J/g,在110℃高温下能保持固体形态无泄露。基于该板材热物性参数,搭建了装配式相变墙体模型,利用ANSYS软件模拟研究该墙体在某地区高温夏季的传热特性,对比该相变墙体与传统墙体内侧壁温变化和传热热负荷,结果表明:24 h传热周期内相变板材可降低约40%的传热负荷;结合墙体的热阻、蓄热系数、热惰性指标等参数分析,发现相变板材可将墙体热阻、热惰性指标分别提升了4.05%、16.7%;从空调耗电角度进行经济性评价,该墙体在一个制冷季节能为单户居民节约空调用电约为31.32元。Shape stabilized phase change materials board(PCMB)with high performance was prepared.Based on the tested thermal physical parameters of PCMB,phase change wall model was set up.Simulation analysis on the wall heat transfer characteristics in summer in Zhengzhou region was conducted by ANSYS software.Variation of indoor wall temperature and heat load in PCMB were compared with those of traditional wall.The wall thermal resistance,heat storage coefficient,thermal inertia index were analyzed.The results showed that the phase-change plate could significantly improve the thermal insulation performance of the wall,reduce the fluctuation of indoor temperature.Besides,the energy consumption analysis showed that the wall could save electricity for air conditioning.

关 键 词：定形相变板材 装配式储能墙体 热工特性 建筑节能 

分 类 号：TU528.1[建筑科学—建筑技术科学]