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In Situ CT-Scanning of Checking and Collapse Behaviour of Eucalyptus nitens During Drying
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0001-7270-1920
SP Technical Research Institute of Sweden .ORCID iD: 0000-0003-3298-1416
Natural Sciences and Preliminary Courses, NTNU Ålesund, Norway .ORCID iD: 0000-0002-5869-2236
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.
Number of Authors: 42016 (English)In: Proceedings of the 59th International Convention of Society of Wood Science and Technology March 6-10, 2016 – Curitiba, Brazil, 2016Conference paper, Published paper (Other academic)
Abstract [en]

Eucalyptus nitens has become a commercially important species in Chile and it isrepresenting one of the fastest growing wood-stock in the country. Today, it is widelyused for pulp and paper production, but the interest in using the solid wood has increasedin recent years. Before the sawn timber can be utilized, its moisture content must bereduced. Often during drying, hydrostatic tension forces within the cell exceed thecompressive strength of the thin cell wall of Eucalyptus nitens and the cell collapses. Thisphenomenon usually leads to severe surface deformation and both surface and internalcracks (honeycombing). Yield and quality of the final product, and thereby sawmills’profitability, are decreased by these cracks and deformations. The aim of this study wasto investigate, by CT-scanning samples throughout the drying process, if it is possible todetect when and how cracking and deformation occurs and develops in specimens ofEucalyptus nitens from Chile. Based on this knowledge, better drying schedules canhopefully be developed to improve the yield and provide a higher end-quality of the sawntimber.

Place, publisher, year, edition, pages
2016.
Keywords [en]
CT-scanning, Eucalyptus nitens, wood drying, image processing, cell collapse
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-61768OAI: oai:DiVA.org:ltu-61768DiVA, id: diva2:1070722
Conference
59th International Convention of Society of Wood Science and Technology, Curitiba, Brazil, March 6-10, 2016
Available from: 2017-02-02 Created: 2017-02-01 Last updated: 2018-05-22Bibliographically approved

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CiteExportLink to record
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