Three-dimensional analysis of the walking-beam-type slab reheating furnace in hot strip mills

Abstract

Three-dimensional analysis is performed for the turbulent reactive flow and radiative heat transfer in the walking-beam-type slab reheating furnace by FLUENT. A simplified burner is validated against the results of the actual burner with the detailed grid resolution to avoid an excessive number of grids. The predicted temperature distribution in the furnace and global energy flow fractions are in reasonable agreement with available data. Distribution of the heat flux to the slabs, velocity vectors, and all major scalar variables in the furnace also are predicted This study shows that three-dimensional analysis may be a useful fool to understand quantitatively the complicated combustion and heat transfer characteristics in the furnace.