DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBER

Although the increasing economic importance of Eucalyptus lumber to furniture and other value added products manufacturing, its industrial use is still small. One of the main reasons is the difficulty to dry the lumber and related loses of raw material. There is a general recommendation in literatur...

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Autores principales:	Jankowsky,Ivaldo P, Santos,Gilson Roberto V. dos
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2005
Materias:	lumber drying Eucalipt lumber characteristic drying curve
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2005000100002
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spelling	oai:scielo:S0718-221X20050001000022008-05-20DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBERJankowsky,Ivaldo PSantos,Gilson Roberto V. dos lumber drying Eucalipt lumber characteristic drying curve Although the increasing economic importance of Eucalyptus lumber to furniture and other value added products manufacturing, its industrial use is still small. One of the main reasons is the difficulty to dry the lumber and related loses of raw material. There is a general recommendation in literature to use a low drying rate in initial stages of the process, and changing to a more aggressive drying after removal of liquid water from the lumber. According classical theory about drying of porous material, this point should coincide with the predominance of diffusion phenomena in the moisture movement; which could be determined through the characteristic drying curve of the material. With the objective to get better knowledge about the drying of Eucalyptus grandis lumber, its characteristic drying curve was determined, and the results proved that Eucalyptus grandis lumber is not permeable to liquid flow. Based on its characteristic drying curve, it is possible to suggest the change of drying conditions when lumber moisture content, dry basis, is between 35% and 40%, then starting a more aggressive dryinginfo:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.7 n.1 20052005-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2005000100002en10.4067/S0718-221X2005000100002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	lumber drying Eucalipt lumber characteristic drying curve
spellingShingle	lumber drying Eucalipt lumber characteristic drying curve Jankowsky,Ivaldo P Santos,Gilson Roberto V. dos DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBER
description	Although the increasing economic importance of Eucalyptus lumber to furniture and other value added products manufacturing, its industrial use is still small. One of the main reasons is the difficulty to dry the lumber and related loses of raw material. There is a general recommendation in literature to use a low drying rate in initial stages of the process, and changing to a more aggressive drying after removal of liquid water from the lumber. According classical theory about drying of porous material, this point should coincide with the predominance of diffusion phenomena in the moisture movement; which could be determined through the characteristic drying curve of the material. With the objective to get better knowledge about the drying of Eucalyptus grandis lumber, its characteristic drying curve was determined, and the results proved that Eucalyptus grandis lumber is not permeable to liquid flow. Based on its characteristic drying curve, it is possible to suggest the change of drying conditions when lumber moisture content, dry basis, is between 35% and 40%, then starting a more aggressive drying
author	Jankowsky,Ivaldo P Santos,Gilson Roberto V. dos
author_facet	Jankowsky,Ivaldo P Santos,Gilson Roberto V. dos
author_sort	Jankowsky,Ivaldo P
title	DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBER
title_short	DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBER
title_full	DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBER
title_fullStr	DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBER
title_full_unstemmed	DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBER
title_sort	drying behavior and permeability of eucalyptus grandis lumber
publisher	Universidad del Bío-Bío
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2005000100002
work_keys_str_mv	AT jankowskyivaldop dryingbehaviorandpermeabilityofeucalyptusgrandislumber AT santosgilsonrobertovdos dryingbehaviorandpermeabilityofeucalyptusgrandislumber
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DRYING BEHAVIOR AND PERMEABILITY OF Eucalyptus grandis LUMBER

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