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
郑伟栋 1肖紫宣 1王磊 1王艳1
作者信息
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.
Abstract
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 appli-cations 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 con-sumption under the conditions of ε=0.9 and R=0.9 can be reduced by 18.7％.The re-search 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Key words
renewable energy/radiative sky cooling/daytime cooling/passive cooling/Energ-yPlus引用本文复制引用
基金项目
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)
出版年
2024
NETL
NSTL
万方数据