AN INVESTIGATION OF THE HEATING OF WOOD IN AN INDUSTRIAL MICROWAVE APPLICATOR: THEORY AND PRACTICE
作者:
A. L. Antti,
H. Zhao,
I. Turner,
期刊:
Drying Technology
(Taylor Available online 2000)
卷期:
Volume 18,
issue 8
页码: 1665-1676
ISSN:0737-3937
年代: 2000
DOI:10.1080/07373930008917805
出版商: Taylor & Francis Group
关键词: distribution;electromagnetic field;EMFV-TD method;IR;model;power;temperature
数据来源: Taylor
摘要:
In this work a comprehensive set of experimental results are used as an excellent means to understand the coupling that exists between the material and die electromagnetic fields in a specific industrial microwave applicator. The analysis of the infrared images allows an accurate map of the power and temperature distributions within the wood sample to be determined. This map, together with the simulation results of a previously developed computational electromagnetic model, can provide a detailed understanding of the design features of the microwave applicator. In particular, it is possible to locate the occurrence of localised hot spots and to examine the uniformity of the heat distribution throughout the sample. The simulation results provide the evolution of the electromagnetic fields inside the entire applicator and the sample. The coupling of theory and practice is the best way to proceed in optimising the design and for proposing new applicator geometry that can heat the material more effectively.
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