The characteristics of microwave melting of frozen packed beds using a rectangular waveguide

Author

Ratanadecho, Phadungsak ; Aoki, Kazuo ; Akahori, Masatoshi

Author_Institution

Dept. of Mech. Eng., Nagaoka Univ. of Technol., Niigata, Japan

Volume

50

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

1495

Lastpage

1502

Abstract

The melting of frozen packed beds by a microwave with a rectangular waveguide has been investigated numerically and experimentally. It was performed for the two different layers, which consist of frozen and unfrozen layers. This paper focuses on the prediction of the temperature field, as well as the microwave energy absorbed, and the melting front within the layered packed beds. Based on the combined model of the Maxwell and heat transport equations, the results show that the direction of melting against the incident microwave strongly depends on the structural layered packed beds because of the difference in the dielectric properties between water and ice

Keywords

Maxwell equations; electromagnetic wave absorption; finite difference time-domain analysis; melting; rectangular waveguides; temperature distribution; FDTD method; Maxwell equations; absorbed microwave energy; frozen layers; frozen packed beds; heat transport equations; layered packed beds; melting front; microwave melting; rectangular waveguide; structural layered packed beds; temperature field; unfrozen layers; Electromagnetic heating; Electromagnetic waveguides; Engine cylinders; Frequency; Maxwell equations; Microwave theory and techniques; Rectangular waveguides; Space technology; Temperature; Thermal conductivity;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2002.1006410

Filename

1006410