Surveillance and diagnostics of the beam mode vibrations of the ringhlas PWRs

Montalvo Martín, Cristina; Pázsit, Imre y Nylén, Henrik (2012). Surveillance and diagnostics of the beam mode vibrations of the ringhlas PWRs. En: "Reactor Noise Knowledge Transfer Meeting 2012", 16/10/2012 - 19/10/2012, Praga. ISBN 1805-6156.. pp. 1-11.

Descripción

Título: Surveillance and diagnostics of the beam mode vibrations of the ringhlas PWRs
Autor/es:
  • Montalvo Martín, Cristina
  • Pázsit, Imre
  • Nylén, Henrik
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Reactor Noise Knowledge Transfer Meeting 2012
Fechas del Evento: 16/10/2012 - 19/10/2012
Lugar del Evento: Praga
Título del Libro: Reactor Noise Knowledge Transfer Meeting 2012
Fecha: 2012
ISBN: 1805-6156.
Materias:
Escuela: E.T.S.I. Minas (UPM) [antigua denominación]
Departamento: Física Aplicada a los Recursos Naturales [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Surveillance of core barrel vibrations has been performed in the Swedish Ringhals PWRs for several years. This surveillance is focused mainly on the pendular motion of the core barrel, which is known as the beam mode. The monitoring of the beam mode has suggested that its amplitude increases along the cycle and decreases after refuelling. In the last 5 years several measurements have been taken in order to understand this behaviour. Besides, a non-linear fitting procedure has been implemented in order to better distinguish the different components of vibration. By using this fitting procedure, two modes of vibration have been identified in the frequency range of the beam mode. Several results coming from the trend analysis performed during these years indicate that one of the modes is due to the core barrel motion itself and the other is due to the individual flow induced vibrations of the fuel elements. In this work, the latest results of this monitoring are presented.

Más información

ID de Registro: 22882
Identificador DC: http://oa.upm.es/22882/
Identificador OAI: oai:oa.upm.es:22882
URL Oficial: http://www.teris.cz/rnktm2012.htm
Depositado por: Memoria Investigacion
Depositado el: 19 Mar 2014 08:16
Ultima Modificación: 22 Sep 2014 11:33
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