冷辐射板吸收太阳辐射的特性研究  

RESEARCH ON CHARACTERISTICS OF COLD RADIANT PANELS ABSORBING SOLAR RADIATION

作　　者：董庆海 李舒宏[1] Dong Qinghai;Li Shuhong(School of Energy and Environment,Southeast University,Nanjing 210096,China)

机构地区：[1]东南大学能源与环境学院,南京210096

出　　处：《太阳能学报》2022年第2期282-286,共5页Acta Energiae Solaris Sinica

基　　金：国家科技部“十三五”重点支撑项目(2017YFC0702501)。

摘　　要：为计算辐射空调系统中冷辐射板吸收太阳辐射能的大小及比例,在分析室内太阳光线传播的基础上,提出采用一种线性方程的方法。结果表明,以本文房间为例,冷辐射板吸收的太阳辐射能的大小以及比例在夏至日表现为正午最小,冷辐射板所吸收的太阳辐射能理论上最大能达到32 W/m^(2),吸收系数在0.13~0.28之间变化。冷辐射板所吸收的太阳辐射能与表面之间的角系数以及表面对太阳辐射的反射比都有关。因此,计算冷辐射板吸收的太阳辐射时应采用动态的算法以及考虑各个因素的影响。To calculate the value and ratio of the solar radiation energy entering the room absorbed by the cold radiant panels,based on the analysis of indoor solar light propagation,a linear equation method is proposed in this paper. The results show that taking the room as an example,the solar radiation energy absorbed by the cold radiant panels and the absorption ratio are the smallest at noon on the summer solstice. The theoretical maximum value of solar radiation energy absorbed by a cold radiant panel is 32 W/m^(2),and the absorption coefficient varies from 0.13 to 0.28. The solar radiation energy absorbed by the cold radiant panels is related to the view factor between each surface and the reflection ratio of each surface to solar radiation. Therefore,when calculating the solar radiation absorbed by the cold radiant panels,a dynamic algorithm and the influence of various factors should be considered.

关 键 词：太阳辐射 辐射制冷 能量吸收 冷辐射板 辐射系统 

分 类 号：TU831.2[建筑科学—供热、供燃气、通风及空调工程]