摘要
为了研究灰尘沉积对辐射制冷材料性能的影响,本文以积灰的辐射制冷材料表面为研究对象,采用模拟分析和实验验证相结合的方法,建立积灰表面辐射制冷性能计算的模拟模型,设计积灰表面辐射制冷性能测试实验,分析灰尘覆盖比对材料辐射制冷性能的影响。结果表明:在南京,夜间灰尘沉积不会对材料的辐射制冷性能产生明显的影响,而日间灰尘沉积则会明显导致材料辐射制冷性能的降低,当灰尘覆盖比达到0.09时,表面无辐射制冷效果。
To study the effect of dust deposition on the performance of radiative cooling materials,this work establishes a simulation model and designs an experimental system simultaneously, for evaluating the performance of dusty radiative cooling surface. Furthermore, the effect of dust coverage ratio on the radiative cooling performance in different conditions is analyzed. The results show that in Nanjing, dust deposition in the nighttime does not have a significant effect on the radiative cooling performance. However, in the daytime, dust deposition will obviously lead to the reduction of the radiative cooling performance, and when the dust coverage ratio reaches 0.09, the surface has no radiative cooling effect.
作者
樊帆
徐琪皓
汤华杰
顾斌
赵东亮
FAN Fan;XU Qihao;TANG Huajie;GU Bin;ZHAO Dongliang(School of Energy and Environment,Southeast University,Nanjing 210096,China)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2024年第7期2118-2124,共7页
Journal of Engineering Thermophysics
基金
江苏省自然科学基金(No.BK20200373)。
关键词
辐射制冷
灰尘覆盖比
辐射制冷性能
radiative cooling
dust coverage ratio
radiative cooling performance
作者简介
樊帆(1996-),男,博士研究生,研究方向为天空辐射制冷;通信作者:赵东亮,教授,dongliang_zhao@seu.edu.cn。
