It is assumed that gas phase and solid phase exist in a state of local thermal equilibrium and the influence of radiationheatexchange 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。
2
Furthermore, a new method is given to calculate total radiationexchange areas which provide advantages for correctly calculating the radiationheatexchange in reheating furnace.
The steady temperature field in irregular plane domain with radiationheatexchange boundary is analyzed by the boundary discrete method, and the solution in form of series is obtained.