Proceedings of Symposium on Energy Engineering in the 21st Century (SEE2000) Volume I-IV
ISBN Print: 1-56700-132-7
STUDY ON THE THERMAL EFFICIENCY AND HEAT TRANSFER OF POST COMBUSTION FOR SMELTING REDUCTION FURNACE
DOI: 10.1615/SEE2000.2130
pages 1640-1645
Abstract
The objectives of this smelting reduction furnace study are to understand the heat transfer, fluid mechanics and combustion process inside a smelting reduction furnace, to develop the parametric control for the combustion optimization and to minimum energy consumption for the smelting reduction. A cold flow analysis with k−ε turbulence model was used to investigate the velocity and pressure profiles inside the testing furnace, which provide the initial information for the combustion analysis. A finite rate/eddy-break-up model and mixture fraction/partial probability density function (PPDF) model are adopted and the results compared. Numerical simulations revealed that a stagnation region present on the top opposite to the exit of the non-symmetrical smelting furnace. The mean furnace temperature that calculated from PPDF model is higher than that predicted from eddy-break-up model. The future research topics are also presented.
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