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Different conditions for
drying of beech lumbers in Kosovo
Agron Bajraktari
Wood Technology Department, Faculty of Technical
Applied Sciences, University of Prishtina, 10000 Prishtina,
Republic of Kosovo. E-mail:
a_bajraktari@yahoo.com.
Accepted 8 June, 2009 |
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The aim of
the study is to present the coefficients of swelling and
shrinkage for the beech wood. Mostly, the values of swelling
and shrinkage, obtained from of heart of red wood, are
higher than white beech wood. The swelling is smaller in
naturally drying lumbers than in kiln drying. Because of
calculated values of over dimensions needed for swelling,
there was calculated also the coefficient of partial
swelling, during the relative humidity from 30 to 10%. The
coefficient of shrinkage increases in white wood of beech,
but it remains nearly the same in heart red wood of beech.
Key
words:
Swelling, shrinkage, density, radial cutting, tangential
cutting, longitudinal cutting. |
