Cross field heating systems: influence of system parameters

Author

Namjoshi, K.V. ; Biringer, P.P.

Author_Institution

Dept. of Electr. Eng., Toronto Univ., Ont., Canada

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3254

Lastpage

3256

Abstract

A two-dimensional analysis of cross field heating systems is presented. An analytical method is used to obtain the impressed field in the air gap of the system without resorting to extensive calculations. The air-gap field in its turn makes it possible to calculate the power induced in the workpiece and provides some design guidelines. Expressions derived for the power induced in the workpiece are used to study the performance of the cross field systems as a function of parameters such as pole width, air-gap length, workpiece thickness, and supply frequency. The influence of the core permeability is also shown. The results indicate that the optimum value of the induced power in a system of given dimensions is almost independent of the workpiece thickness. The calculated value of the induced power shows good agreement with the measured value for a test system

Keywords

electromagnetic field theory; electromagnets; induction heating; numerical analysis; EM fields; air-gap field; air-gap length; core permeability; cross field heating systems; design guidelines; induced power; induction heating; pole width; supply frequency; system parameters; two-dimensional analysis; workpiece thickness; Analytical models; Coils; Electromagnetic measurements; Electromagnets; Fourier series; Frequency; Guidelines; Heating; Power measurement; Power system modeling;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42269

Filename

42269