FEM computation of the forces on the arc of a DC-furnace

Author

Biro, O. ; Preis, K. ; Richter, K.R. ; Aigner, B. ; Schuchlenz, W.H. ; Nix, E.

Author_Institution

Graz Univ. of Technol., Austria

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3507

Lastpage

3510

Abstract

A finite element model of a DC arc furnace is investigated in order to predict the forces acting on the arc due to the magnetic field. The currents have an a priori unknown distribution in the steel tank wall, in the anode, in the melt and in the cathode, so a current flow problem is analysed in the first step. The current density is solved for in terms of a current vector potential whose edge element representation is used in the subsequent nonlinear magnetic field calculation to act as impressed magnetic field. The current dependence of the shielding provided by the steel tank is investigated. It is shown that by providing an asymmetrical feed of the current, the force on the arc can be reduced substantially

Keywords

arc furnaces; current density; finite element analysis; magnetic fields; magnetic shielding; DC arc furnace; FEM computation; asymmetrical feed; current density; current flow problem; current vector potential; edge element representation; finite element model; nonlinear magnetic field calculation; shielding; steel tank wall; Anodes; Cathodes; Current density; Finite element methods; Furnaces; Magnetic analysis; Magnetic fields; Nonlinear magnetics; Predictive models; Steel;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312695

Filename

312695