Three-dimensional eddy current analysis of induction melting in cold crucibles

Author

Tsuboi, H. ; Tanaka, M. ; Kobayashi, Fukiko ; Misaki, T.

Author_Institution

Dept. of Inf. Eng., Fukuyama Univ., Japan

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1574

Lastpage

1577

Abstract

In order to reduce computer resources for the analysis of the eddy current distribution of cold crucible models, the authors used a current sheet approximation for the eddy current distribution because the penetration depth of the eddy current is relatively small in comparison with the dimension of the conducting bodies. The eddy current distributions approximated by current sheets are solved by an integrodifferential method using an electric vector potential. Furthermore, the magnetic flux density, power loss, Lorentz force, and lifting force of the molten metals are obtained from the solved eddy current distribution. The calculated results for the power loss and the Lorentz force gave good agreement with experimental results

Keywords

eddy currents; electromagnetic devices; induction heating; integro-differential equations; mesh generation; metallurgical industries; power engineering computing; 3D analysis; Lorentz force; cold crucibles; current sheet approximation; eddy current distribution; electric vector potential; induction melting; integrodifferential method; lifting force; magnetic flux density; molten metals; power loss; triangular mesh; Coils; Conductivity; Conductors; Eddy currents; Electric potential; Finite element methods; Integral equations; Integrodifferential equations; Lorentz covariance; Magnetic flux density;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250705

Filename

250705