Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres

Autores
Fernandez Brizuela, Anabel Alejandra; Román Barón, María Celia; Mazza, German Delfor; Rodriguez, Rosa Ana
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
During the thermal process to transform lignocellulosic wastes in energy, the drying process is an important stage because it requires energy and decreases overall process yield. Considering this process, moisture diffusivity is an important factor that is considered essential to understand for design, analysis, and its optimization. In this work, this parameter was analyzed at non-isothermal condition and considering the process under inert and oxidative atmospheres. Lower diffusivities were obtained under low heating rates, due to the disfavoring the moisture diffusion in the particles. Higher effective diffusivity (Deff) values were obtained when the drying is carried out under the atmosphere oxidative. Moreover, the thermodynamic parameters and DTA curves were determined. ΔH values are positive in all cases, showing that the drying process is endothermic. ΔG are positive and ΔS negative, indicating that the process is non-spontaneous. DTA curves show that the drying process is endothermic, according with the calculated ΔH.
Fil: Fernandez Brizuela, Anabel Alejandra. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Román Barón, María Celia. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mazza, German Delfor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina
Fil: Rodriguez, Rosa Ana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina
Materia
DIFFERENTIAL THERMAL ANALYSIS
DRYING PROCESS
MOISTURE DIFFUSIVITY
REGIONAL WASTES
THERMOGRAVIMETRIC ANALYSIS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/88813
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/88813
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheresFernandez Brizuela, Anabel AlejandraRomán Barón, María CeliaMazza, German DelforRodriguez, Rosa AnaDIFFERENTIAL THERMAL ANALYSISDRYING PROCESSMOISTURE DIFFUSIVITYREGIONAL WASTESTHERMOGRAVIMETRIC ANALYSIShttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2During the thermal process to transform lignocellulosic wastes in energy, the drying process is an important stage because it requires energy and decreases overall process yield. Considering this process, moisture diffusivity is an important factor that is considered essential to understand for design, analysis, and its optimization. In this work, this parameter was analyzed at non-isothermal condition and considering the process under inert and oxidative atmospheres. Lower diffusivities were obtained under low heating rates, due to the disfavoring the moisture diffusion in the particles. Higher effective diffusivity (Deff) values were obtained when the drying is carried out under the atmosphere oxidative. Moreover, the thermodynamic parameters and DTA curves were determined. ΔH values are positive in all cases, showing that the drying process is endothermic. ΔG are positive and ΔS negative, indicating that the process is non-spontaneous. DTA curves show that the drying process is endothermic, according with the calculated ΔH.Fil: Fernandez Brizuela, Anabel Alejandra. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Román Barón, María Celia. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mazza, German Delfor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; ArgentinaFil: Rodriguez, Rosa Ana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; ArgentinaElsevier2018-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/88813Fernandez Brizuela, Anabel Alejandra; Román Barón, María Celia; Mazza, German Delfor; Rodriguez, Rosa Ana; Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres; Elsevier; Case Studies in Thermal Engineering; 12; 9-2018; 248-2572214-157XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2214157X18300546?via%3Dihubinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.csite.2018.04.015info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:49Zoai:ri.conicet.gov.ar:11336/88813instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:40:49.74CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres
title Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres
spellingShingle Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres
Fernandez Brizuela, Anabel Alejandra
DIFFERENTIAL THERMAL ANALYSIS
DRYING PROCESS
MOISTURE DIFFUSIVITY
REGIONAL WASTES
THERMOGRAVIMETRIC ANALYSIS
title_short Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres
title_full Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres
title_fullStr Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres
title_full_unstemmed Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres
title_sort Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres
dc.creator.none.fl_str_mv Fernandez Brizuela, Anabel Alejandra
Román Barón, María Celia
Mazza, German Delfor
Rodriguez, Rosa Ana
author Fernandez Brizuela, Anabel Alejandra
author_facet Fernandez Brizuela, Anabel Alejandra
Román Barón, María Celia
Mazza, German Delfor
Rodriguez, Rosa Ana
author_role author
author2 Román Barón, María Celia
Mazza, German Delfor
Rodriguez, Rosa Ana
author2_role author
author
author
dc.subject.none.fl_str_mv DIFFERENTIAL THERMAL ANALYSIS
DRYING PROCESS
MOISTURE DIFFUSIVITY
REGIONAL WASTES
THERMOGRAVIMETRIC ANALYSIS
topic DIFFERENTIAL THERMAL ANALYSIS
DRYING PROCESS
MOISTURE DIFFUSIVITY
REGIONAL WASTES
THERMOGRAVIMETRIC ANALYSIS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv During the thermal process to transform lignocellulosic wastes in energy, the drying process is an important stage because it requires energy and decreases overall process yield. Considering this process, moisture diffusivity is an important factor that is considered essential to understand for design, analysis, and its optimization. In this work, this parameter was analyzed at non-isothermal condition and considering the process under inert and oxidative atmospheres. Lower diffusivities were obtained under low heating rates, due to the disfavoring the moisture diffusion in the particles. Higher effective diffusivity (Deff) values were obtained when the drying is carried out under the atmosphere oxidative. Moreover, the thermodynamic parameters and DTA curves were determined. ΔH values are positive in all cases, showing that the drying process is endothermic. ΔG are positive and ΔS negative, indicating that the process is non-spontaneous. DTA curves show that the drying process is endothermic, according with the calculated ΔH.
Fil: Fernandez Brizuela, Anabel Alejandra. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Román Barón, María Celia. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mazza, German Delfor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina
Fil: Rodriguez, Rosa Ana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina
description During the thermal process to transform lignocellulosic wastes in energy, the drying process is an important stage because it requires energy and decreases overall process yield. Considering this process, moisture diffusivity is an important factor that is considered essential to understand for design, analysis, and its optimization. In this work, this parameter was analyzed at non-isothermal condition and considering the process under inert and oxidative atmospheres. Lower diffusivities were obtained under low heating rates, due to the disfavoring the moisture diffusion in the particles. Higher effective diffusivity (Deff) values were obtained when the drying is carried out under the atmosphere oxidative. Moreover, the thermodynamic parameters and DTA curves were determined. ΔH values are positive in all cases, showing that the drying process is endothermic. ΔG are positive and ΔS negative, indicating that the process is non-spontaneous. DTA curves show that the drying process is endothermic, according with the calculated ΔH.
publishDate 2018
dc.date.none.fl_str_mv 2018-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/88813
Fernandez Brizuela, Anabel Alejandra; Román Barón, María Celia; Mazza, German Delfor; Rodriguez, Rosa Ana; Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres; Elsevier; Case Studies in Thermal Engineering; 12; 9-2018; 248-257
2214-157X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/88813
identifier_str_mv Fernandez Brizuela, Anabel Alejandra; Román Barón, María Celia; Mazza, German Delfor; Rodriguez, Rosa Ana; Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres; Elsevier; Case Studies in Thermal Engineering; 12; 9-2018; 248-257
2214-157X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2214157X18300546?via%3Dihub
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.csite.2018.04.015
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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