Numerical Simulation in Combustion Space of an Oxy-fuel Glass Furnace with the First Pair of Burners Arrangement Changed

摘要

To reduce energy consumption and prolong furnace life, numerical simulation in the combustion space of an oxy-fuel float glass furnace was carried out. The gas phase is expressed with k-ε two-equation model; the combustion is described with non-premixed model; the radiation is expressed with Discrete Ordinates Radiation Model. The simulation results agree well with the related reference. The results show that, on the whole there is a rational flow field in the combustion space except near the burner No.2, around which fuel combust inadequately. To improve this condition, the case of changing the arrangement of the first pair of burners was studied. When the staggered arrangement of the first pair of burners was changed into opposed arrangement, not only the average temperature around the first pair of burners increased, but also the heat transfer to the bottom increased, being beneficial for melting glass melt effectually.