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Investigation of the heating of wood in an industrial microwave applicator: theory and practice
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.
2000 (English)In: Drying Technology, ISSN 0737-3937, E-ISSN 1532-2300, Vol. 18, no 8, p. 1665-1676Article in journal (Refereed) Published
Abstract [en]

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 the 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.

Place, publisher, year, edition, pages
2000. Vol. 18, no 8, p. 1665-1676
National Category
Bio Materials
Research subject
Wood Physics
Identifiers
URN: urn:nbn:se:ltu:diva-4950Local ID: 2f486e70-bb52-11db-b560-000ea68e967bOAI: oai:DiVA.org:ltu-4950DiVA, id: diva2:977824
Note
Validerad; 2000; 20061017 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Antti, Lena

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