相变蓄热墙体的节能特性仿真与分析  

Simulation and Analysis of Energy-saving Characteristics of Phase-change Heat Storage Wall

作　　者：朱奕康 魏子清 郑春元 李斌 翟晓强[2] ZHU Yikang;WEI Ziqing;ZHENG Chunyuan;LI Bin;ZHAI Xiaoqiang(China-UK Low Carbon College,Shanghai Jiao Tong University,Shanghai 200240,China;School of Mechanical and Power Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Guangdong Midea HVAC Equipment Co.,Ltd.,Foshan 528311,Guangdong,China)

机构地区：[1]上海交通大学中英国际低碳学院,上海200240 [2]上海交通大学机械与动力工程学院,上海200240 [3]广东美的暖通设备有限公司,广东佛山528311

出　　处：《制冷技术》2024年第2期18-23,共6页Chinese Journal of Refrigeration Technology

摘　　要：利用EnergyPlus对相变材料(PCM)墙体的应用效果进行了模拟,以佛山地区为例,探讨了建筑围护结构应用PCM的最佳相变温度以及设计厚度;分析了内热源对能耗模拟结果的影响。研究结果表明:对于研究案例,相变温度为30℃的PCM节能效果较好;考虑单位厚度PCM对空调节能的贡献,相变材料层厚度宜取20 mm;考虑内热源的情况下,设置PCM后全年能耗可降低9.38%。EnergyPlus is used to simulate the application effect of phase change material(PCM)wall.Take Foshan area as an example,the optimal phase change temperature and design thickness of PCM applied to building envelope is discussed and the influence of internal heat source on the simulation results of energy consumption is analyzed.The research results show that PCM with phase change temperature of 30℃has better energy-saving effect for the case studied.Considering the contribution of PCM per unit thickness to energy saving of air conditioning,the thickness of PCM layer should be 20 mm.Considering the internal heat source,the annual energy consumption can be reduced by 9.38%after PCM is set on the wall.

关 键 词：相变材料 建筑能耗 围护结构 

分 类 号：TB34[一般工业技术—材料科学与工程] TU83[建筑科学—供热、供燃气、通风及空调工程]