Radiation absorption in Steam
 

Hello all. This is not so much a post about CFD as it is about a CFD problem I am trying to solve. In this problem, I am modeling radiation with the DO method, and need to take into account the absorption of steam.

Does anyone have a good source of absorption coefficients for steam? I know it is quite banded, but I am trying to model this as "gray". Therefore I am trying to find some sort of gray averaged value, if it exists.