The discrete transfer radiation model in a natural gas-fired furnace

The performance of the discrete transfer radiation model is assessed in a s wirling natural gas diffusion flame confined in an axisymmetric furnace. Th e predictions are evaluated as part of a complete prediction procedure invo lving the modeling of the simultaneously occurring flow, combustion, convec tion and radiation phenomena. Computational results with and without radiat ion effects are compared with experimental data and the discrete transfer m odel is evaluated in terms of computational efficiency, ease of application and predictive accuracy. The results have demonstrated that the effect of thermal radiation is important, even in light flames, and that the discrete transfer model can be applied in industrial gas furnaces, yielding accurat e predictions. Copyright (C) 2000 John Wiley & Sons, Ltd.