Analysis of the damage domains of sbo sequences with rcp passive thermal shutdown

Queral Salazar, José Cesar; Mena-Rosell, L.; Jiménez Varas, Gonzalo; Sánchez-Perea, M.; Hortal, J. y Gómez-Magán, J. (2014). Analysis of the damage domains of sbo sequences with rcp passive thermal shutdown. En: "ICONE22.Proceedings of the 22th International Conference on Nuclear Engineering", 7-11 Julio 2014, Praga. pp. 1-8.

Descripción

Título: Analysis of the damage domains of sbo sequences with rcp passive thermal shutdown
Autor/es:
  • Queral Salazar, José Cesar
  • Mena-Rosell, L.
  • Jiménez Varas, Gonzalo
  • Sánchez-Perea, M.
  • Hortal, J.
  • Gómez-Magán, J.
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: ICONE22.Proceedings of the 22th International Conference on Nuclear Engineering
Fechas del Evento: 7-11 Julio 2014
Lugar del Evento: Praga
Título del Libro: ICONE 22.Proceedings of the 22th International Conference on Nuclear Engineering
Fecha: 2014
Materias:
Escuela: E.T.S.I. de Minas y Energía (UPM)
Departamento: Energía y Combustibles
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The integrated Safety Assessment (ISA) methodology, developed by the Spanish Nuclear Safety Council (CSN), has been applied to a thermal-hydraulic analysis of PWR Station Blackout (SBO) sequences in the context of the IDPSA (Integrated Deterministic-Probabilistic Safety Assessment) network objectives. The ISA methodology allows obtaining the damage domain (the region of the uncertain parameters space where the damage limit is exceeded) for each sequence of interest as a function of the operator actuations times. Given a particular safety limit or damage limit, several data of every sequence are necessary in order to obtain the exceedance frequency of that limit. In this application these data are obtained from the results of the simulations performed with MAAP code transients inside each damage domain and the time-density probability distributions of the manual actions. Damage limits that have been taken into account within this analysis are: local cladding damage (PCT>1477 K); local fuel melting (T>2499 K); fuel relocation in lower plenum and vessel failure. Therefore, to every one of these damage variables corresponds a different damage domain. The operation of the new passive thermal shutdown seals developed by several companies since Fukushima accident is considered in the paper. The results show the capability and necessity of the ISA methodology, or similar, in order to obtain accurate results that take into account time uncertainties.

Más información

ID de Registro: 36321
Identificador DC: http://oa.upm.es/36321/
Identificador OAI: oai:oa.upm.es:36321
URL Oficial: http://www.asmeconferences.org/icone22/
Depositado por: Memoria Investigacion
Depositado el: 02 Jul 2015 08:42
Ultima Modificación: 01 Mar 2017 16:40
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