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Modeling of radiative heat transfer in an electric arc furnace

 
: Opitz, Florian; Treffinger, Peter; Wöllenstein, Jürgen

:

Metallurgical and materials transactions. B, Process metallurgy and materials processing science 48 (2017), No.6, pp.3301-3315
ISSN: 1073-5615
ISSN: 1073-5623
ISSN: 1543-1916
English
Journal Article
Fraunhofer IPM ()

Abstract
Radiation is an important means of heat transfer inside an electric arc furnace (EAF). To gain insight into the complex processes of heat transfer inside the EAF vessel, not only radiation from the surfaces but also emission and absorption of the gas phase and the dust cloud need to be considered. Furthermore, the radiative heat exchange depends on the geometrical configuration which is continuously changing throughout the process. The present paper introduces a system model of the EAF which takes into account the radiative heat transfer between the surfaces and the participating medium. This is attained by the development of a simplified geometrical model, the use of a weighted-sum-of-gray-gases model, and a simplified consideration of dust radiation. The simulation results were compared with the data of real EAF plants available in literature.

: http://publica.fraunhofer.de/documents/N-480153.html