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Erschienen in: Wood Science and Technology 1-2/2009

01.02.2009 | Original

Reaction wood drying kinetics: tension wood in Fagus sylvatica and compression wood in Picea abies

verfasst von: A. Tarmian, R. Remond, M. Faezipour, A. Karimi, P. Perré

Erschienen in: Wood Science and Technology | Ausgabe 1-2/2009

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Abstract

The drying kinetics of reaction woods in Picea abies (compression wood) and Fagus sylvatica (tension wood) in comparison with their corresponding normal woods was investigated under constant convective drying conditions. Moisture profiles along the thickness of small flat-sawn boards taken from reaction and opposite wood zones were evaluated using a polychromatic X-ray system, a non-destructive method. The results revealed substantial differences in the drying behavior between the reaction and opposite woods. Both reaction woods represented slower drying rate than their matching normal woods mainly during the period of free water loss. However, the reaction and opposite woods reached the final moisture content (MC) of about 12% at the same time due to higher initial MC in the opposite woods. In the case of reaction wood, it took a longer time for the moisture profile to become approximately uniform. Overall, a more striking difference was observed in the drying behavior of compression and opposite wood in P. abies. Some important anatomical differences like the cell and pit dimensions and their proportion give some explanations for these drying behaviors.

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Metadaten
Titel
Reaction wood drying kinetics: tension wood in Fagus sylvatica and compression wood in Picea abies
verfasst von
A. Tarmian
R. Remond
M. Faezipour
A. Karimi
P. Perré
Publikationsdatum
01.02.2009
Verlag
Springer-Verlag
Erschienen in
Wood Science and Technology / Ausgabe 1-2/2009
Print ISSN: 0043-7719
Elektronische ISSN: 1432-5225
DOI
https://doi.org/10.1007/s00226-008-0230-5

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