Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media

Detalhes bibliográficos
Autor(a) principal: An, Chen
Data de Publicação: 2017
Outros Autores: Silva, Alice Cunha da, Su, Jian
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRJ
Texto Completo: http://hdl.handle.net/11422/8402
Resumo: Indisponível.
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spelling An, ChenSilva, Alice Cunha daSu, Jian2019-06-10T16:24:21Z2023-11-30T03:03:30Z2017-02-221024-123Xhttp://hdl.handle.net/11422/840210.1155/2017/8303021Indisponível.In this work, we studied the transient combined convection and radiation of multilayer spherical media with volumetric heat generation, extending the previous work on the particular case of a spherical body subjected to radiative cooling. The proposed lumped models were obtained through two-point Hermite approximations for the average temperature and heat flux in each layer. For the average temperature, the plain trapezoidal rule (0,0 approximation) was employed in all layers, except for the innermost layer, where the second-order two-side corrected trapezoidal rule (2,1 approximation) was utilized. For the heat flux, the plain trapezoidal rule (0,0 approximation) was employed for all the layers.The transient heat conduction in a TRISO-coated fuel particle being composed of five layers (namely, fuel kernel, buffer of porous carbon, inner pyrocarbon, silicon carbide, and outer pyrocarbon) was analyzed using the proposed lumpedmodels, the results ofwhichwere verified by comparisonwith the finite difference solution of the original distributed parameter model. Parametric studies were conducted to examine the effects of the dimensionless heat generation rate, the radiation-conduction parameter, and the Biot number on the temporal variations of the average temperatures.Submitted by Jairo Amaro (jairo.amaro@sibi.ufrj.br) on 2019-06-10T16:24:21Z No. of bitstreams: 1 12-2017_Improved-Lumped-Models-min.pdf: 1905882 bytes, checksum: d895ea3b911ce3298376f77205da024f (MD5)Made available in DSpace on 2019-06-10T16:24:21Z (GMT). No. of bitstreams: 1 12-2017_Improved-Lumped-Models-min.pdf: 1905882 bytes, checksum: d895ea3b911ce3298376f77205da024f (MD5) Previous issue date: 2017-02-22engHindawiBrasilNúcleo Interdisciplinar de Dinâmica dos FluidosMathematical Problems in EngineeringCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOSMultilayer structuresHigh temperature gas-cooled reactorsTransient heat conductionImproved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Mediainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article201719abertoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRJinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJORIGINAL12-2017_Improved-Lumped-Models-min.pdf12-2017_Improved-Lumped-Models-min.pdfapplication/pdf1905882http://pantheon.ufrj.br:80/bitstream/11422/8402/1/12-2017_Improved-Lumped-Models-min.pdfd895ea3b911ce3298376f77205da024fMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81853http://pantheon.ufrj.br:80/bitstream/11422/8402/2/license.txtdd32849f2bfb22da963c3aac6e26e255MD5211422/84022023-11-30 00:03:30.767oai:pantheon.ufrj.br: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Repositório de PublicaçõesPUBhttp://www.pantheon.ufrj.br/oai/requestopendoar:2023-11-30T03:03:30Repositório Institucional da UFRJ - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.en.fl_str_mv Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
title Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
spellingShingle Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
An, Chen
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Multilayer structures
High temperature gas-cooled reactors
Transient heat conduction
title_short Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
title_full Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
title_fullStr Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
title_full_unstemmed Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
title_sort Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
author An, Chen
author_facet An, Chen
Silva, Alice Cunha da
Su, Jian
author_role author
author2 Silva, Alice Cunha da
Su, Jian
author2_role author
author
dc.contributor.author.fl_str_mv An, Chen
Silva, Alice Cunha da
Su, Jian
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
topic CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Multilayer structures
High temperature gas-cooled reactors
Transient heat conduction
dc.subject.eng.fl_str_mv Multilayer structures
High temperature gas-cooled reactors
Transient heat conduction
description Indisponível.
publishDate 2017
dc.date.issued.fl_str_mv 2017-02-22
dc.date.accessioned.fl_str_mv 2019-06-10T16:24:21Z
dc.date.available.fl_str_mv 2023-11-30T03:03:30Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/11422/8402
dc.identifier.issn.pt_BR.fl_str_mv 1024-123X
dc.identifier.doi.pt_BR.fl_str_mv 10.1155/2017/8303021
identifier_str_mv 1024-123X
10.1155/2017/8303021
url http://hdl.handle.net/11422/8402
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.en.fl_str_mv Mathematical Problems in Engineering
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Hindawi
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Núcleo Interdisciplinar de Dinâmica dos Fluidos
publisher.none.fl_str_mv Hindawi
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRJ
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Repositório Institucional da UFRJ
collection Repositório Institucional da UFRJ
bitstream.url.fl_str_mv http://pantheon.ufrj.br:80/bitstream/11422/8402/1/12-2017_Improved-Lumped-Models-min.pdf
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