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Basic density determination for Swedish softwoods and its influence on average moisture content of wood packages estimated by measuring their mass
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0003-3298-1416
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-0744-5868
2016 (English)In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 11, no 4, p. 248-253Article in journal (Refereed) Published
Abstract [en]

In this work, a set-up with a device measuring the mass of wood packages is examined as an aid to estimate the average moisture content (MC) of wood packages. As the basic density needs to be presumed in the set-up, an estimator of the basic density as a function of log diameter is determined for Norway spruce (Picea abies (L.) Karst) and Scots pine (Pinus sylvestris). In total, 1920 specimens were collected at two different sawmills and analysed for this purpose. Specimens collected at the butt-end of pine had the greatest variation in basic density and it is recommended that they should be omitted when sawmills create their own functions for basic density estimation. Furthermore, the variation in basic density was shown to have the greatest impact on the estimated MC. A maximum error estimator of the MC became 14% at a MC of 70% and 9% at a MC of 10%. It was therefore concluded that the described method should not be used to estimate the MC of packages after drying but can serve as a valuable indicator of average green MC of a drying batch.

Place, publisher, year, edition, pages
2016. Vol. 11, no 4, p. 248-253
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-4249DOI: 10.1080/17480272.2015.1090481ISI: 000385568100007Scopus ID: 2-s2.0-84945231902Local ID: 22b38437-29ea-4e30-bc60-77409a90c393OAI: oai:DiVA.org:ltu-4249DiVA, id: diva2:977113
Note

Validerad; 2016; Nivå 2; 20151006 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Vikberg, TommyElustondo, Diego

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