Simulation of Combustion Space Heat Transfer of Glass Melting Furnace

Radiation plays a dominant role in combustion space heat transfer. It is composed of three components, namely gaseous species radiation, soot radiation and crown surface radiation. The basis for model validation and the subsequent study of furnace operation is the spatial variation of radiant heat flux. Hayes and colleagues carried out measurements of crown incident radiant heat flux along the furnace axial centerline and developed a numerical model. However, the effect of soot was not quantified. In the present work, a numerical model is developed which considers the effect of soot radiation and is simulated using Fluent. The proposed model fits the experimental data of Hayes and colleagues within an error band of –6% to +14%.