Analytical and Experimental Examination of Defrosting Spots of Heated Frozen Material in a Microwave Oven

Author

Watanabe, Shigetaka ; Kakuta, Yuji ; Hashimoto, Osamu

Author_Institution

Dept. of Electr. Eng. & Electron., Aoyama Gakuin Univ., Kanagawa

fYear

2006

fDate

11-16 June 2006

Firstpage

284

Lastpage

287

Abstract

In this paper, temperature distribution of heated material (a frozen tuna) in a microwave oven is calculated by the method which combines FDTD for electromagnetic field calculation with heat transport equation considering melting heat and the nonlinear and rapid change of complex relative permittivity and heat conductivity during defrosting. As a result, the calculated temperature distribution of heated material agrees well with the measured one, and the validity of the combined method considering melting heat and the change of complex relative permittivity and heat conductivity is confirmed

Keywords

dielectric heating; finite difference time-domain analysis; heat transfer; melting; microwave ovens; permittivity; temperature distribution; thermal conductivity; complex relative permittivity; defrosting spots; dielectric heating; electromagnetic field calculation; finite difference time domain; heat conductivity; heat transport equation; heated frozen material; melting heat; microwave heating; microwave oven; temperature distribution; Conducting materials; Conductivity; Electromagnetic fields; Electromagnetic heating; Finite difference methods; Microwave ovens; Microwave theory and techniques; Permittivity; Temperature distribution; Time domain analysis; Dielectric heating; FDTD methods; Microwave heating;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2006. IEEE MTT-S International

Conference_Location

San Francisco, CA

ISSN

0149-645X

Print_ISBN

0-7803-9541-7

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2006.249489

Filename

4014882