CFD analysis of blockage length on a partially blocked fuel rod

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dc.contributor.authorSCURO, NIKOLAS L.
dc.contributor.authorANGELO, GABRIEL
dc.contributor.authorANGELO, EDVALDO
dc.contributor.authorANDRADE, DELVONEI A. de
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2018-01-03T10:47:12Z
dc.date.available2018-01-03T10:47:12Z
dc.date.eventoOctober 22-27, 2017pt_BR
dc.description.abstractIn LOCA accidents, fuel rods may balloon by the increasing of pressure difference between fuel rod and core vessel. With the balloon effect, the swelling can partially block the flow channel, affecting the coolability during reflood phase. In order to analyze the influence of blockage length after LOCA events, many numerical simulations using Ansys-CFX code have been done in steady state condition, characterizing the final phase of reflood. Peaks of temperature are observed in the middle of the fuel rod, followed by a temperature drop. This effect is justified by the increasing of heat transfer coefficient, originated from the high turbulence effects. Therefore, this paper considers a radial blockage of 90%, varying just the blockage length. This study observed that, for the same boundary conditions, the longer the blockage length originated after LOCA events, the higher are the central temperatures in the fuel rod.pt_BR
dc.event.siglaINACpt_BR
dc.identifier.citationSCURO, NIKOLAS L.; ANGELO, GABRIEL; ANGELO, EDVALDO; ANDRADE, DELVONEI A. de. CFD analysis of blockage length on a partially blocked fuel rod. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. <b>Proceedings...</b> Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28205.
dc.identifier.orcidhttps://orcid.org/0000-0002-6689-3011
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28205
dc.localRio de Janeiro, RJpt_BR
dc.local.eventoBelo Horizonte, MGpt_BR
dc.publisherAssociação Brasileira de Energia Nuclearpt_BR
dc.rightsopenAccesspt_BR
dc.subjectboundary conditions
dc.subjectcomputerized simulation
dc.subjectflow blockage
dc.subjectfluid mechanics
dc.subjectfuel rods
dc.subjectheat transfer
dc.subjectloss of coolant
dc.subjectnumerical analysis
dc.subjectsteady-state conditions
dc.subjectturbulence
dc.titleCFD analysis of blockage length on a partially blocked fuel rodpt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorDELVONEI ALVES DE ANDRADE
ipen.autorNIKOLAS LYMBERIS SCURO
ipen.codigoautor1258
ipen.codigoautor14552
ipen.contributor.ipenauthorDELVONEI ALVES DE ANDRADE
ipen.contributor.ipenauthorNIKOLAS LYMBERIS SCURO
ipen.date.recebimento18-01pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24030pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication0eeb4436-68e5-4573-a603-35f5fc912178
relation.isAuthorOfPublication21cc9120-e6dd-4e0d-8a42-6fe0737cada6
relation.isAuthorOfPublication.latestForDiscovery21cc9120-e6dd-4e0d-8a42-6fe0737cada6
sigepi.autor.atividadeSCURO, NIKOLAS L.:14552:-1:Spt_BR
sigepi.autor.atividadeANDRADE, DELVONEI A. DE:1258:420:Npt_BR
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