Finite element modeling of the RF heating process

Author

Choi, C.T.M. ; Konrad, A.

Author_Institution

General Electric Co., Schenectady, NY, USA

Volume

27

Issue

5

fYear

1991

fDate

9/1/1991 12:00:00 AM

Firstpage

4227

Lastpage

4230

Abstract

The heating of heterogeneous materials by radio frequency excitation is modeled by sequential electromagnetic and thermal analysis using the finite-element method. The electromagnetic analysis comprises electrostatic modeling using temperature-dependent complex dielectric permittivity to account for the energy dissipating losses in the material. The thermal analysis consists of a transient finite-element procedure with temperature-dependent thermal and material properties. The results show good agreement with transient thermal measurements.

Keywords

electric fields; finite element analysis; heat conduction; heat losses; permittivity; radiofrequency heating; thermal properties of substances; FEA; RF heating; electromagnetic analysis; electrostatic modeling; energy dissipating losses; heat conduction; heterogeneous materials; material properties; radio frequency excitation; temperature-dependent complex dielectric permittivity; thermal analysis; transient finite-element procedure; transient thermal measurements; Dielectric losses; Dielectric materials; Electromagnetic analysis; Electromagnetic heating; Electromagnetic modeling; Electromagnetic transients; Electrostatics; Finite element methods; Permittivity; Radio frequency;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.105034

Filename

105034