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

摘要

The performance of the discrete transfer radiation model is assessed in a swirling natural gas diffusion flame confined in an axisymmetric furnace. The predictions are evaluated as part of a complete prediction procedure involving the modeling of the simultaneously occurring flow, combustion, convection and radiation phenomena. Computational results with and without radiation effects are compared with experimental data and the discrete transfer model 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 accurate predictions.