天空辐射制冷对轻质围护结构建筑能耗的影响研究  

Study on the effect of radiative sky cooling on energy consumption of light envelope building

作　　者：郑伟栋 肖紫宣 王磊[1] 王艳[1] Zheng Weidong;Xiao Zixuan;Wang Lei;Wang Yan(School of Civil and Surveying & Mapping Engineering,Jiangxi University of Science and Technology)

机构地区：[1]江西理工大学土木与测绘工程学院

出　　处：《制冷与空调》2024年第7期32-38,共7页Refrigeration and Air-Conditioning

基　　金：江西省青年科学基金资助项目(20202BABL214038);国家级大学生创新创业训练计划项目(202010407009)。

摘　　要：随着材料科学研究的迅猛发展,使得天空辐射制冷技术在日间的应用逐步成为现实。该研究基于EnergyPlus能耗模拟结果,对辐射制冷技术在轻质围护结构建筑上的应用进行了详细研究。结果表明,实现轻质围护结构建筑的全天天空辐射制冷的临界值为:ε分别为0.9和0.98时,R不低于0.949和0.944。与ε为0.1、R为0.5条件下的空调能耗相比,ε为0.9、R为0.9条件下的空调能耗节省18.7%。该研究结果能为天空辐射制冷技术有效应用于轻质围护结构建筑提供参考。With the rapid development of material science,the application of radiative sky cooling technology in daytime has gradually become a reality.In this paper,the applications of radiative sky cooling technology in lightweight prefabricated house are studied using EnergyPlus software.The results show that the critical values for achieving all-day radiative sky cooling for lightweight prefabricated house are:when ε is 0.9 and 0.98,R is not less than 0.949 and 0.944,Respectively.Compared with the air-conditioning energy consumption under the conditions of ε=0.1 and R=0.5,the air-conditioning energy consumption under the conditions of ε=0.9 and R=0.9 can be reduced by 18.7%.The research results can provide important reference and guidance for the effective applications of radiative sky cooling technology in lightweight prefabricated house.

关 键 词：可再生能源 天空辐射制冷 日间冷却 被动式降温 建筑能耗模拟软件 

分 类 号：TB6[一般工业技术—制冷工程]