WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/508 |
Resumo: | Eight loads of sawn lumber of slash pine, with 25 mm of thickness, were exposed to four drying temperatures (50, 70, 90 and 110°C) and two air speed levels (2.3 and 5.0 m/s) for correlating wood temperature and moisture content (MC), as well as to establish statistical models to be applied in kiln drying process control. Diode type temperature sensors, introduced into ¼ of the piece thickness, and a tension type load cell was used to weight the lumber pile, which allowed the determination of temperature and MC of the wood, respectively. The drying process was managed by an automated process control consisting of a PC and a data acquisition system. The results showed that, for high temperature drying, exists an excellent correlation between wood temperature and MC. Models that include wet bulb temperature explained better the two variables relationship and can be used as an end of the drying schedule indicator, specially for temperatures above 100°C. |
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WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROLKiln dryingwood MCdrying controlwood temperatureslash pineEight loads of sawn lumber of slash pine, with 25 mm of thickness, were exposed to four drying temperatures (50, 70, 90 and 110°C) and two air speed levels (2.3 and 5.0 m/s) for correlating wood temperature and moisture content (MC), as well as to establish statistical models to be applied in kiln drying process control. Diode type temperature sensors, introduced into ¼ of the piece thickness, and a tension type load cell was used to weight the lumber pile, which allowed the determination of temperature and MC of the wood, respectively. The drying process was managed by an automated process control consisting of a PC and a data acquisition system. The results showed that, for high temperature drying, exists an excellent correlation between wood temperature and MC. Models that include wet bulb temperature explained better the two variables relationship and can be used as an end of the drying schedule indicator, specially for temperatures above 100°C.CERNECERNE2015-10-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/508CERNE; Vol. 6 No. 2 (2000); 112-121CERNE; v. 6 n. 2 (2000); 112-1212317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttps://cerne.ufla.br/site/index.php/CERNE/article/view/508/436Copyright (c) 2015 CERNEinfo:eu-repo/semantics/openAccessSantini, Elio José2015-10-22T09:01:14Zoai:cerne.ufla.br:article/508Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:53:55.641871Cerne (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL |
title |
WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL |
spellingShingle |
WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL Santini, Elio José Kiln drying wood MC drying control wood temperature slash pine |
title_short |
WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL |
title_full |
WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL |
title_fullStr |
WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL |
title_full_unstemmed |
WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL |
title_sort |
WOOD TEMPERATURE AS AN ALTERNATIVE TO THE KILN DRYING PROCESS CONTROL |
author |
Santini, Elio José |
author_facet |
Santini, Elio José |
author_role |
author |
dc.contributor.author.fl_str_mv |
Santini, Elio José |
dc.subject.por.fl_str_mv |
Kiln drying wood MC drying control wood temperature slash pine |
topic |
Kiln drying wood MC drying control wood temperature slash pine |
description |
Eight loads of sawn lumber of slash pine, with 25 mm of thickness, were exposed to four drying temperatures (50, 70, 90 and 110°C) and two air speed levels (2.3 and 5.0 m/s) for correlating wood temperature and moisture content (MC), as well as to establish statistical models to be applied in kiln drying process control. Diode type temperature sensors, introduced into ¼ of the piece thickness, and a tension type load cell was used to weight the lumber pile, which allowed the determination of temperature and MC of the wood, respectively. The drying process was managed by an automated process control consisting of a PC and a data acquisition system. The results showed that, for high temperature drying, exists an excellent correlation between wood temperature and MC. Models that include wet bulb temperature explained better the two variables relationship and can be used as an end of the drying schedule indicator, specially for temperatures above 100°C. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/508 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/508 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/508/436 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 CERNE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 CERNE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 6 No. 2 (2000); 112-121 CERNE; v. 6 n. 2 (2000); 112-121 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1799874941000089600 |