RMB experimental program on the hydrodynamical behavior of fuel assemblies

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dc.contributor.authorTORRES, WALMIR M.pt_BR
dc.contributor.authorUMBEHAUN, PEDRO E.pt_BR
dc.contributor.authorMATTAR NETO, MIGUELpt_BR
dc.contributor.authorBELCHIOR JUNIOR, ANTONIOpt_BR
dc.contributor.authorFREITAS, ROBERTO L.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2020-01-15T00:32:35Z
dc.date.available2020-01-15T00:32:35Z
dc.date.eventoOctober 21-25, 2019pt_BR
dc.description.abstractThe Brazilian Multipurpose Reactor - RMB is a 30 MW pool type research reactor, that uses Materials Testing Reactor - MTR type fuel assemblies. It has a 5x5 square array core with 23 fuel assemblies and two in-core irradiation positions, operating with upward flow and average velocities nearly 10 m/s in the fuel plates channels. The IEA-R1 is a 5 MW pool type research reactor, which also has a 5x5 square array core with 19 standard fuel assemblies, four control fuel assemblies and a central beryllium irradiation device. It operates with downward flow nearly 1.8 m/s in the channels. In order to verify and provide data and information about the dynamical behavior of fuel assemblies under nominal and critical conditions, the experimental circuit ORQUÍDEA is being designed. This information will be very important for the licensing process of the fuel assembly before its use in the reactor core. This circuit will permits upward and downward flow and dynamical behavior of the fuel assemblies and its parts will be tested and verified. Flow rate, temperature, pressure and differential pressure transducers are the instruments of the circuit. Endurance and critical flow velocity tests will be performed. Dummy fuel assemblies will be used in the tests. It will be instrumented with pressure, strain-gages and flow velocity instruments. The COLIBRI experimental circuit is being designed to make tests that allow the studies of the fluid-structure phenomenology of fuel plates similar to those of the RMB fuel assemblies when subjected to high flow velocities, which can induce pressure differences between the channels formed by the fuel plates. Preliminary structural response studies of the plate’s behavior were performed using a Finite Element Analysis model generated by ANSYS Mechanical. The pressure loadings caused by the fluid flow were calculated using a Computational Fluid Dynamics model created with ANSYS CFX. The fluid-structure interactions will be verified for different channel configurations. In this circuit, vibrations and collapse of the dummy fuel plates will be tested. Experimental data will be compared with CFD (Computational Fluid Dynamics) calculations. This work presents a preliminary design for the ORQUÍDEA and COLIBRI experimental circuits to be built at the Instituto de Pesquisas Energéticas e Nucleares - IPEN of the Comissão Nacional de Energia Nuclear - CNEN.pt_BR
dc.event.siglaINACpt_BR
dc.format.extent4440-4449pt_BR
dc.identifier.citationTORRES, WALMIR M.; UMBEHAUN, PEDRO E.; MATTAR NETO, MIGUEL; BELCHIOR JUNIOR, ANTONIO; FREITAS, ROBERTO L. RMB experimental program on the hydrodynamical behavior of fuel assemblies. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 21-25, 2019, Santos, SP. <b>Proceedings...</b> Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2019. p. 4440-4449. Disponível em: http://repositorio.ipen.br/handle/123456789/30695.
dc.identifier.orcid0000-0002-2295-1021pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2295-1021
dc.identifier.orcidhttps://orcid.org/0000-0002-2887-0759
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/30695
dc.localRio de Janeiropt_BR
dc.local.eventoSantos, SPpt_BR
dc.publisherAssociação Brasileira de Energia Nuclear
dc.rightsopenAccesspt_BR
dc.subjectcomparative evaluations
dc.subjectcomputerized simulation
dc.subjectcritical flow
dc.subjectcritical velocity
dc.subjectexperimental data
dc.subjectfinite element method
dc.subjectflow rate
dc.subjectfuel assemblies
dc.subjectfuel plates
dc.subjecthydrodynamics
dc.subjectpressure range mega pa 10-100
dc.subjectrmb reactor
dc.subjecttemperature range 0065-0273 k
dc.subjecttemperature range 0400-1000 k
dc.titleRMB experimental program on the hydrodynamical behavior of fuel assembliespt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorMIGUEL MATTAR NETO
ipen.autorANTONIO BELCHIOR JUNIOR
ipen.autorPEDRO ERNESTO UMBEHAUN
ipen.autorWALMIR MAXIMO TORRES
ipen.codigoautor70
ipen.codigoautor6367
ipen.codigoautor754
ipen.codigoautor188
ipen.contributor.ipenauthorMIGUEL MATTAR NETO
ipen.contributor.ipenauthorANTONIO BELCHIOR JUNIOR
ipen.contributor.ipenauthorPEDRO ERNESTO UMBEHAUN
ipen.contributor.ipenauthorWALMIR MAXIMO TORRES
ipen.date.recebimento20-01
ipen.event.datapadronizada2019pt_BR
ipen.identifier.ipendoc26344pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
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relation.isAuthorOfPublicationc1502b5a-764f-4f7b-bae0-b04b2a264aae
relation.isAuthorOfPublication5e952755-d8a5-427d-9298-6d6b76897aac
relation.isAuthorOfPublication.latestForDiscovery5e952755-d8a5-427d-9298-6d6b76897aac
sigepi.autor.atividadeBELCHIOR JUNIOR, ANTONIO:6367:450:Npt_BR
sigepi.autor.atividadeMATTAR NETO, MIGUEL:70:420:Npt_BR
sigepi.autor.atividadeUMBEHAUN, PEDRO E.:754:420:Npt_BR
sigepi.autor.atividadeTORRES, WALMIR M.:188:450:Spt_BR
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