Coupled reactive fluid dynamics and radiation calculations are performed in air and oxy-fuel fired industrial glass furnaces using two gas radiative property models. The first one is the weighted sum of gray gases model and the second one is the correlated-k-method, which is a spectral model based on the cumulative distribution function of the absoption coefficient inside a narrow band. The first model, generally used in glass furnaces, is less time consuming than the second one. However, discrepancies up to several tens of percent are found in the local heat flux on the glass surface between the two radiative models, espcially in air combustion.
Origin
Air Liquide, France
Journal Title
Glastech Ber Glass Sci Technol 70 7 1997 201-206
Sector
General
Class
G 1665