A Continuous Power-Controlled Microwave Belt Drier Improving Heating Uniformity

Due to the nonuniform energy distribution in a microwave (MW) cavity, MW-based heating applications remain a substantial barrier. A continuous power-controlled MW conveyor-belt drier using multiple 2.45-GHz MW sources improves heating uniformity. By controlling the input power of MW sources sequenti...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 27; no. 5; pp. 527 - 529
Main Authors Bae, Sang-Hyeon, Jeong, Min-Gyo, Kim, Ji-Hong, Lee, Wang-Sang
Format Journal Article
LanguageEnglish
Published IEEE 01.05.2017
Subjects
Cavity resonators
Continuous
Electromagnetic heating
heating uniformity
micro- wave (MW) drier
Microwave ovens
Microwave radiometry
Microwave theory and techniques
power-controlled
temperature distribution
Water heating
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Summary:Due to the nonuniform energy distribution in a microwave (MW) cavity, MW-based heating applications remain a substantial barrier. A continuous power-controlled MW conveyor-belt drier using multiple 2.45-GHz MW sources improves heating uniformity. By controlling the input power of MW sources sequentially, the electric field and temperature variations, hot and cold spots in the MW cavity, have been significantly reduced. Experimental results show that the MW heating using the proposed continuous power-controlled method can achieve an improved heating uniformity of approximately 34% compared with a simultaneous multiple input method (conventional mode).
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2017.2690849