Generalized drying rate curves in conductive/convective paper drying

Detalhes bibliográficos
Autor(a) principal: Motta Lima, Oswaldo Curty da
Data de Publicação: 2008
Outros Autores: Pereira, Nehemias Curvelo, Machado, Marlon Alessandro Lincoln dos Santos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3055
Resumo: The drying of paper (cellulose) sheets over heated surfaces, under natural and forced air conditions is studied. Samples were placed over the upper surface of a metallic box heated by a thermostatic bath. The system is exposed to ambient air under two different conditions: natural convection and forced convection provided by an adjustable blower. Samples consisted of pure eucalyptus pressed cellulose (about 1 mm thick). Moisture content of sheets (dry basis, d.b.) was determined from their constant weight in an oven at a temperature of 105ºC. The influence of initial paper moisture content, drying (heated surface) temperature and air velocity on the drying rate curves behavior was analyzed under different drying conditions and studied through generalized drying rate curves. A model was then successfully employed to fit them.
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spelling Generalized drying rate curves in conductive/convective paper dryingTaxas de secagem generalizadas na secagem condutiva/convectiva de papelsecagemsecagem de papeltaxas de secagem generalizadas3.06.00.00-6 Engenharia QuímicaThe drying of paper (cellulose) sheets over heated surfaces, under natural and forced air conditions is studied. Samples were placed over the upper surface of a metallic box heated by a thermostatic bath. The system is exposed to ambient air under two different conditions: natural convection and forced convection provided by an adjustable blower. Samples consisted of pure eucalyptus pressed cellulose (about 1 mm thick). Moisture content of sheets (dry basis, d.b.) was determined from their constant weight in an oven at a temperature of 105ºC. The influence of initial paper moisture content, drying (heated surface) temperature and air velocity on the drying rate curves behavior was analyzed under different drying conditions and studied through generalized drying rate curves. A model was then successfully employed to fit them.Este trabalho teve como objetivo estudar alguns aspectos relacionados à secagem de folhas de papel (celulose) sobre superfícies aquecidas, em regime de convecção natural e forçada. Os experimentos foram realizados com folhas de celulose de eucalipto prensadas colocadas sobre a face superior de uma caixa metálica aquecida por um banho termostático, submetida, ou não, a uma corrente de ar fornecida por um soprador. O conteúdo de umidade (base seca, b.s.) das amostras era determinado a partir de seu peso seco em estufa a 105ºC. A influência da umidade inicial das amostras, da temperatura de secagem (placa aquecida) e da velocidade do ar no comportamento das curvas de taxa de secagem foi observada para diferentes condições de secagem, sendo posteriormente estudada a partir de uma proposta de curvas de taxa de secagem generalizadas. Em seguida, os resultados obtidos foram adequadamente ajustados por um modelo.Universidade Estadual De Maringá2008-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/305510.4025/actascitechnol.v22i0.3055Acta Scientiarum. Technology; Vol 22 (2000); 1229-1233Acta Scientiarum. Technology; v. 22 (2000); 1229-12331806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3055/2212Motta Lima, Oswaldo Curty daPereira, Nehemias CurveloMachado, Marlon Alessandro Lincoln dos Santosinfo:eu-repo/semantics/openAccess2024-05-17T13:02:53Zoai:periodicos.uem.br/ojs:article/3055Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:53Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Generalized drying rate curves in conductive/convective paper drying
Taxas de secagem generalizadas na secagem condutiva/convectiva de papel
title Generalized drying rate curves in conductive/convective paper drying
spellingShingle Generalized drying rate curves in conductive/convective paper drying
Motta Lima, Oswaldo Curty da
secagem
secagem de papel
taxas de secagem generalizadas
3.06.00.00-6 Engenharia Química
title_short Generalized drying rate curves in conductive/convective paper drying
title_full Generalized drying rate curves in conductive/convective paper drying
title_fullStr Generalized drying rate curves in conductive/convective paper drying
title_full_unstemmed Generalized drying rate curves in conductive/convective paper drying
title_sort Generalized drying rate curves in conductive/convective paper drying
author Motta Lima, Oswaldo Curty da
author_facet Motta Lima, Oswaldo Curty da
Pereira, Nehemias Curvelo
Machado, Marlon Alessandro Lincoln dos Santos
author_role author
author2 Pereira, Nehemias Curvelo
Machado, Marlon Alessandro Lincoln dos Santos
author2_role author
author
dc.contributor.author.fl_str_mv Motta Lima, Oswaldo Curty da
Pereira, Nehemias Curvelo
Machado, Marlon Alessandro Lincoln dos Santos
dc.subject.por.fl_str_mv secagem
secagem de papel
taxas de secagem generalizadas
3.06.00.00-6 Engenharia Química
topic secagem
secagem de papel
taxas de secagem generalizadas
3.06.00.00-6 Engenharia Química
description The drying of paper (cellulose) sheets over heated surfaces, under natural and forced air conditions is studied. Samples were placed over the upper surface of a metallic box heated by a thermostatic bath. The system is exposed to ambient air under two different conditions: natural convection and forced convection provided by an adjustable blower. Samples consisted of pure eucalyptus pressed cellulose (about 1 mm thick). Moisture content of sheets (dry basis, d.b.) was determined from their constant weight in an oven at a temperature of 105ºC. The influence of initial paper moisture content, drying (heated surface) temperature and air velocity on the drying rate curves behavior was analyzed under different drying conditions and studied through generalized drying rate curves. A model was then successfully employed to fit them.
publishDate 2008
dc.date.none.fl_str_mv 2008-05-13
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3055
10.4025/actascitechnol.v22i0.3055
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3055
identifier_str_mv 10.4025/actascitechnol.v22i0.3055
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3055/2212
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 22 (2000); 1229-1233
Acta Scientiarum. Technology; v. 22 (2000); 1229-1233
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
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