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Modeling microwave heating and moisture redistribution in wood
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknologi.ORCID-id: 0000-0002-5869-2236
2008 (engelsk)Inngår i: Drying Technology, ISSN 0737-3937, E-ISSN 1532-2300, Vol. 26, nr 5, s. 552-559Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A finite element model was developed to describe and explain microwave heating of wood and the following moisture redistribution in wood. Dielectric and thermal properties are of great importance, since they are continuously affected during the process by moisture content, density, grain direction, temperature, and more. Computer tomography was used to detect wood density and moisture content. Heat distribution was verified by fiber-optic temperature sensors. The tests were performed in a designed microwave dryer based on 1-kW generators, 2.45GHz. The results show that finite element modeling is a powerful tool to simulate heat and mass transfer in wood, providing the material is well described.

sted, utgiver, år, opplag, sider
2008. Vol. 26, nr 5, s. 552-559
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Träfysik
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URN: urn:nbn:se:ltu:diva-13183DOI: 10.1080/07373930801944713ISI: 000254700000007Scopus ID: 2-s2.0-41949101029Lokal ID: c5ec89b0-0f70-11dd-ab53-000ea68e967bOAI: oai:DiVA.org:ltu-13183DiVA, id: diva2:986135
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Validerad; 2008; 20080421 (pafi)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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