Radiative heat transfer in a gas space filled with sodium mist. In case of polydispersed sodium mist particles

Radiative heat transfer through a cover gas between upper wall and lower liquid sodium surface, filled with polydispersed sodium mist particles, is investigated numerically by Monte Carlo Method. Radiative properties of sodium mist such as extinction coefficient and scattering phase function are calculated using particle distributions for sodium mist by Mie theory. Using these properties the radiative heat flux is computed for the cover gas space of gray isotropic and nongray anisotropic scattering particles, respectively. The results obtained show that, the heat flux decreases with increasing concentration of sodium mist, however, the effect of sodium mist on total heat flux is relatively low. (author)