Heat Transfer in High-Power Electric Arc Furnaces. Part II. Distribution of Thermal Radiation Flows of Arcs Over the Bath and Walls

This article presents the calculation results of the heat transfer in a high-power electric arc steel-making furnace EAF-100. With an increase in the slag layer height, the radiation heat fluxes from arcs to the walls decrease, while the surface of the bath and spherical segments under the arcs increase. With the full penetration of the arcs into the bath and slag, the density of the thermal radiation fluxes of the arcs is reduced by three times over the entire height of the walls compared with an insignificant embedding of the arcs. Thermal loads on the water-cooled wall panels in the absorbing furnace atmosphere are reduced by four times compared to those in the transparent furnace atmosphere.