WSEAS Transactions on Communications


Print ISSN: 1109-2742
E-ISSN: 2224-2864

Volume 16, 2017

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.



FDTD Numerical Model for Heating Procedures in Microwave Multimode Cavities

AUTHORS: Magno Medeiros De Araújo, Augusto Carlos Pavão, Idalmir de Sousa Queiroz Jr., Humberto Dionísio de Andrade, Romênia Gurgel Vieira

Download as PDF

ABSTRACT: This work aims to develop a numeric model using FDTD in order relate the microwave spread, with the dielectric material heating on industry applications, standing as a base to future development of a software, which can study the microwave effects on these applications. Initially the basic issues involving the propagation of electromagnetic waves are discussed, as well as the equation that govern it. Then the mathematical treatment is performed, in order to related the known parameters to those obtained on the simulation. Lastly, experiments based in the simulated medium were performed, for the purpose of verify the error presented on the developed model. Those experiments allowed to conclude that the results numerically given, serve as a reference to situations where high precision is not necessary on the final temperature of the dielectric medium.

KEYWORDS: Microwave, Microwave Heating, Finite Difference Time Domain, Numerical Method

REFERENCES:

[1] TANG, J., LAU, H. LAU, M. Microwave heating in food processing. Advances in Bioprocessing Engineering, p 1-44. 2002.

[2] RATANADECHO, P. et al. A numerical and experimental investigation of the modeling of microwave heating for liquid layers using a rectangular wave guide (effect of natural convenction and dielectric properties). Applied Mathematical Modelling, vol 26, p. 449-472, 2002).

[3] DIBBEN, D. C. Numerical and experimental modelling of microwave applicators. Tese de doutorado. University of Cambridge. Department of Engineering. Reino Unido, 1995.

[4] OSEPCHUK, J. M. Microwave Power Applications. IEEE Transactions on Microwave Theory and Techniques, v. 50, n. 3, p. 975-985, mar. 2002.

[5] MUKENDI, W. M. Modeling ans Simulation of Heat Transfer Between Microwaves and a Leachate. Dissertação de Mestrado. University of Johannesburg. Department of Mechanical Engineering Technology. South Africa, 2006.

[6] BENGTSSON, N. E; OHLSSON, T. Microwave Heating in the Food Industry. Proceedings os the IEEE, v. 62, n. 1, p. 44-55, jan. 1974.

[7] CHAN, T. V.; CHOW T.; READER, H. C. Understanding microwave heating cavities. Boston: Artech House, 2000. 275 p.

[8] METAXAS, A. C.; MEREDITH, R. J. Industrial Microwave Heating. London: Peter Peregrinus Ltd, 1993.

[9] TORRES, F., JECKO, B. Complete FDTD Analysis of Microwave Heating Processes in Frequency-Dependent and TemperatureDependent Media. IEEE Transactions on Microwave Theory and Techniques, vol. 45 (1), 108-117, 1997.

[10] COLE, K. S.; COLE, R. H. Dispersion ans Absorption in Dielectrics. Journal of Chemical Physics, v. 9, p. 341-351, apr. 1941.

[11] OR, D., WRAITH, J.M. Temperature effects on soil bulk dielectric permittivity mesured by time domain reflectometry. A physical model. Water Resources Research, vol.25, p.371-383,1999.

[12] STOGRYN, A. Equations for calculating the dielectric constant of saline water. IEEE Transactions on Microwave Theory and Techniques, vol. MIT-19, p. 733-736, 1971.

[13] ULANY, F.T.; MOORE, R. K.; FUNG, A. K. Microwave Remote Sensing: Active and Passive, vol III: From Theory to Applications. Dedham, MA: Artech House, Inc. 1986.

[14] PAVÃO, A. C. “Cavidades Carregadas - Estudo Da Perturbação Dos Campos Eletromagnéticos”, Tese de doutorado. Escola Politécnica da Universidade de São Paulo, Brasil, Departamento de Engenharia Elétrica, 2004.

[15] ARAÚJO, M. M. “Caracterização de um modelo numérico utilizando FDTD para uso em processos de aquecimento por micro-ondas em cavidades multimode”, Dissertação de Mestrado. Universidade Federal Rural do SemiÁrido, Brasil. Programa de Pós-graduação em Sistemas de Comunicação e Automação. Universidade, 2015.

WSEAS Transactions on Communications, ISSN / E-ISSN: 1109-2742 / 2224-2864, Volume 16, 2017, Art. #40, pp. 353-361


Copyright © 2017 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution License 4.0

Bulletin Board

Currently:

The editorial board is accepting papers.


WSEAS Main Site