High-Frequency Energy-Assisted Vacuum Drying of Fresh Eucalyptus globulus

Worldwide, eucalyptus tree plantations have been established in appropriate climates because of fast growth and wood qualities suitable mainly for pulp. A potential exists of converting eucalyptus trees into lumber that may be of higher value than pulp. Conventional drying of lumber of Eucalyptus gl...

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Published inDrying technology Vol. 26; no. 5; pp. 611 - 616
Main Authors Hansmann, Christian, Stingl, Robert, Prieto, Oscar González, Lopez, Carlos Baso, Resch, Helmuth
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 07.04.2008
Subjects
Cell collapse
Cracking
Drying quality
Drying rate
Moisture content
Rapid drying
Wood
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Summary:Worldwide, eucalyptus tree plantations have been established in appropriate climates because of fast growth and wood qualities suitable mainly for pulp. A potential exists of converting eucalyptus trees into lumber that may be of higher value than pulp. Conventional drying of lumber of Eucalyptus globulus is often difficult because of the occurrence of drying stresses, leading to collapse and checking. The special method of vacuum drying while heating the wood with high-frequency energy (75-77 mbar, 46-51°C) was used to obtain short drying times (5-13 days from green state to 10% final moisture content) and low crack amount.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0737-3937
1532-2300
DOI:10.1080/07373930801946759