Analysis of the protective actions in the Emergency Planning Zones (EPZs) in the Angra dos Reis region through the calculation of the dose for public individuals due to a severe accident at the Angra 2 Nuclear Plant

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dc.contributor.authorAGUIAR, ANDRE S.pt_BR
dc.contributor.authorLEE, SEUNG M.pt_BR
dc.contributor.authorSABUNDJIAN, G.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2020-01-15T19:21:06Z
dc.date.available2020-01-15T19:21:06Z
dc.date.eventoOctober 21-25, 2019pt_BR
dc.description.abstractThis work presents the results of the computational simulations of the consequences of a severe accident in Angra 2 nuclear power plant. The severe accident was supposed to be caused by a rupture of 380cm2 in the primary reactor coolant system resulting in loss of coolant. Since the area of the rupture is quite smaller than the total flow area of the pipe of the primary coolant system, 4418cm2, the accident is classified as a small break loss of coolant accident. However, this rupture by itself would not bring the system about a severe accident, which must involve a considerable damage in the nuclear core. Thus, some boundary conditions were added to the problem in order to set a scenario of this kind of accident, which was simulated by means of the MELCOR code. The results obtained by this code show that the release of the radionuclide to the environment starts at the opening of the containment relief valve, and this valve, in turn, opens when the containment pressure reaches 7bar, at 168 hours after the break of the pipe of the coolant system, according to the simulation. The program used for calculation of the release of the radionuclides to the surrounding region of the nuclear plant was the CALMET/CALPUFF code, so that the atmospheric and transport model were elaborated for this code. A source term was used in order to carry out an analysis of the protective actions in the emergency planning zones by means dose calculation for individuals of the public, and it was based on two different scenarios: first scenario, release of the total activity to the atmosphere of Xe, Cs, Ba and Te, after 2h simulation and second scenario, release of the total activity to the atmosphere of Xe, Cs, Ba and Te, after 168h of simulation.pt_BR
dc.event.siglaINACpt_BR
dc.format.extent5862-5876pt_BR
dc.identifier.citationAGUIAR, ANDRE S.; LEE, SEUNG M.; SABUNDJIAN, G. Analysis of the protective actions in the Emergency Planning Zones (EPZs) in the Angra dos Reis region through the calculation of the dose for public individuals due to a severe accident at the Angra 2 Nuclear Plant. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 21-25, 2019, Santos, SP. <b>Proceedings...</b> Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2019. p. 5862-5876. Disponível em: http://repositorio.ipen.br/handle/123456789/30735.
dc.identifier.orcid0000-0001-9544-4509pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9544-4509
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/30735
dc.localRio de Janeiropt_BR
dc.local.eventoSantos, SPpt_BR
dc.publisherAssociação Brasileira de Energia Nuclear
dc.rightsopenAccesspt_BR
dc.subjectangra-2 reactor
dc.subjectboundary conditions
dc.subjectc codes
dc.subjectemergency plans
dc.subjectfission product release
dc.subjectloss of coolant
dc.subjectm codes
dc.subjectradiation doses
dc.subjectradiation protection
dc.subjectradioactive materials
dc.subjectradioactivity
dc.subjectreactor accident simulation
dc.subjectsevere accidents
dc.titleAnalysis of the protective actions in the Emergency Planning Zones (EPZs) in the Angra dos Reis region through the calculation of the dose for public individuals due to a severe accident at the Angra 2 Nuclear Plantpt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorGAIANE SABUNDJIAN
ipen.autorSEUNG MIN LEE
ipen.autorANDRE SILVA DE AGUIAR
ipen.codigoautor202
ipen.codigoautor6057
ipen.codigoautor14938
ipen.contributor.ipenauthorGAIANE SABUNDJIAN
ipen.contributor.ipenauthorSEUNG MIN LEE
ipen.contributor.ipenauthorANDRE SILVA DE AGUIAR
ipen.date.recebimento20-01
ipen.event.datapadronizada2019pt_BR
ipen.identifier.ipendoc26388pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication915b9343-9eaf-4b03-b709-85699f77b71c
relation.isAuthorOfPublication69d76f4d-78f0-482e-be90-d5e2187fcf32
relation.isAuthorOfPublicationa7b5a58a-93dc-45db-86ba-f1c077561ce8
relation.isAuthorOfPublication.latestForDiscoverya7b5a58a-93dc-45db-86ba-f1c077561ce8
sigepi.autor.atividadeSABUNDJIAN, G.:202:420:Npt_BR
sigepi.autor.atividadeLEE, SEUNG M.:6057:420:Npt_BR
sigepi.autor.atividadeAGUIAR, ANDRE S.:14938:-1:Spt_BR
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