It is assumed that gas phase and solid phase exist in a state of local thermal equilibrium and the influence of radiation heat exchange has also been taken into account.

假定气相与固相处于局部热平衡状态，考虑了辐射换热的影响。

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Furthermore, a new method is given to calculate total radiation exchange areas which provide advantages for correctly calculating the radiation heat exchange in reheating furnace.

此外，给出了炉气为非灰时的辐射全交换面积的一种计算方法，为准确求解加热炉炉膛内的辐射热交换创造了条件。

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The steady temperature field in irregular plane domain with radiation heat exchange boundary is analyzed by the boundary discrete method, and the solution in form of series is obtained.

采用边界离散方法对具有辐射换热边界的平面非规则域内稳态温度场进行了分析，得到了级数形式的解。

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