MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBER

A dynamic kiln-wide wood drying model was developed previously to solve the integral form of the unsteady-state mass, momentum and energy balance equations in the air side. For the wood side, an empirical model, characteristic drying curve, for the internal moisture movement is used, which was obtai...

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Autores principales:	Sun,Z. F, Carrington,C. G, Davis,C, Sun,Q, Pang,S
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2005
Materias:	characteristic drying curve dehumidifier drying kiln stack mathematical model Pinus radaiata sapwood timber
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2005000200003
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spelling	oai:scielo:S0718-221X20050002000032005-11-28MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBERSun,Z. FCarrington,C. GDavis,CSun,QPang,S characteristic drying curve dehumidifier drying kiln stack mathematical model Pinus radaiata sapwood timber A dynamic kiln-wide wood drying model was developed previously to solve the integral form of the unsteady-state mass, momentum and energy balance equations in the air side. For the wood side, an empirical model, characteristic drying curve, for the internal moisture movement is used, which was obtained for low and medium temperature drying of Pinus radiata, with a medium velocity of 1.4-4.1 m s-1. As part of the research programme to improve the design and control of dehumidifier wood drying kilns, the wood drying model has been assessed using the experimental data measured under drying conditions similar to those in dehumidifier kiln. It is noted that close agreement between the modelled results and the experimental data can be obtained for Pinus radiata drying processes with a medium air velocity (<; 5 m s-1). However, larger discrepancy between the modelled results and the measured data has been observed with a higher velocity (8 m s-1). To solve this problem a new characteristic drying curve, based on a two-zone diffusion model, has been used in the kiln-wide wood drying model and more accurate results have been obtainedinfo:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.7 n.2 20052005-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2005000200003en10.4067/S0718-221X2005000200003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	characteristic drying curve dehumidifier drying kiln stack mathematical model Pinus radaiata sapwood timber
spellingShingle	characteristic drying curve dehumidifier drying kiln stack mathematical model Pinus radaiata sapwood timber Sun,Z. F Carrington,C. G Davis,C Sun,Q Pang,S MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBER
description	A dynamic kiln-wide wood drying model was developed previously to solve the integral form of the unsteady-state mass, momentum and energy balance equations in the air side. For the wood side, an empirical model, characteristic drying curve, for the internal moisture movement is used, which was obtained for low and medium temperature drying of Pinus radiata, with a medium velocity of 1.4-4.1 m s-1. As part of the research programme to improve the design and control of dehumidifier wood drying kilns, the wood drying model has been assessed using the experimental data measured under drying conditions similar to those in dehumidifier kiln. It is noted that close agreement between the modelled results and the experimental data can be obtained for Pinus radiata drying processes with a medium air velocity (<; 5 m s-1). However, larger discrepancy between the modelled results and the measured data has been observed with a higher velocity (8 m s-1). To solve this problem a new characteristic drying curve, based on a two-zone diffusion model, has been used in the kiln-wide wood drying model and more accurate results have been obtained
author	Sun,Z. F Carrington,C. G Davis,C Sun,Q Pang,S
author_facet	Sun,Z. F Carrington,C. G Davis,C Sun,Q Pang,S
author_sort	Sun,Z. F
title	MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBER
title_short	MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBER
title_full	MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBER
title_fullStr	MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBER
title_full_unstemmed	MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBER
title_sort	mathematical modelling and experimental investigation of dehumidifier drying of radiata pine timber
publisher	Universidad del Bío-Bío
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2005000200003
work_keys_str_mv	AT sunzf mathematicalmodellingandexperimentalinvestigationofdehumidifierdryingofradiatapinetimber AT carringtoncg mathematicalmodellingandexperimentalinvestigationofdehumidifierdryingofradiatapinetimber AT davisc mathematicalmodellingandexperimentalinvestigationofdehumidifierdryingofradiatapinetimber AT sunq mathematicalmodellingandexperimentalinvestigationofdehumidifierdryingofradiatapinetimber AT pangs mathematicalmodellingandexperimentalinvestigationofdehumidifierdryingofradiatapinetimber
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MATHEMATICAL MODELLING AND EXPERIMENTAL INVESTIGATION OF DEHUMIDIFIER DRYING OF RADIATA PINE TIMBER

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