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采用光线踪迹法结合区域法，考虑了壁面的多次反射及各向同性散射时能量传递份额的再分配，导出了两侧均为半透明界面下一维吸收、发射、各向同性散射介质的辐射传递系数．忽略Z向和Y向的散热，把空间辐射换热器液滴层简化为具有两个半透明界面的一维问题．将辐射传递系数和控制容积法相结合，数值模拟了空间辐射散热器液滴层内的瞬态温度分布．与分离变量法的计算结果比较表明，导出辐射传递系数的方法正确，计算结果精度高．
The ray tracing method combined with the area method was used to account for the redistribution of the energy transfer fraction in the multiple reflection and isotropic scattering of the wall. The absorption, emission and isotropic scattering medium Radiation transfer coefficient. Ignoring the heat dissipation in the Z and Y directions, the droplet layer of the space radiation heat exchanger is reduced to a one-dimensional problem with two translucent interfaces. The radiation transfer coefficient and the control volume method are combined to simulate the transient temperature distribution in the droplet layer of the radiant radiator. Comparison with the results of the separation variable method shows that the method of deriving the radiation transfer coefficient is correct and the calculation result is of high precision.