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将太阳电池板中发生的辐射 传导复合传热过程等效为一个无内热源的三维瞬态热传导问题。根据实测数据得出太阳电池板的三维等效导热系数。针对任意两相邻电池板表面间的热辐射交换规律 ,构造适用于这两个表面内节点温度的离散方程系数。研究折叠状太阳电池阵边界节点的热特点时 ,仔细考虑了地球红外辐照、太阳辐射加热、航天器舱体几何遮挡、深冷环境散热、飞行轨道高度及航天器在太阳 地球系中不同位置等造成的影响。采用SIP算法 ,对离散方程进行了求解。比较了考虑和不考虑地球红外辐射对电池阵温度分布的影响。该文的分析对折叠状太阳电池阵展开时刻的认定有重要的参考价值
The radiative conductive composite heat transfer process in a solar panel is equivalent to a three-dimensional transient heat conduction problem without an internal heat source. According to the measured data, the 3D equivalent thermal conductivity of solar panels is obtained. According to the rule of heat radiation exchange between the surfaces of any two adjacent panels, the discrete equation coefficients suitable for the temperature of the nodes in the two surfaces are constructed. When studying the thermal characteristics of the boundary nodes of folded solar array, the effects of infrared radiation, heating of solar radiation, geometrical shelter of spacecraft capsule, cooling of cryogenic environment, altitude of orbital path, and different positions of spacecraft in the solar earth system Such as the impact of. Using the SIP algorithm, the discrete equation is solved. The effects of the earth’s infrared radiation on the temperature distribution of the array are compared with and without consideration. The analysis of this paper has an important reference value for the determination of folding solar array deployment time