Ageing PSA incorporating effectiveness of maintenance and testing

This paper proposes a new approach to Ageing Probabilistic Safety Assessment (APSA) modelling, which is intended to be used to support risk-informed decisions on the effectiveness of maintenance management programs and technical specification requirements of critical equipment of Nuclear Power Plants (NPP) within the framework of the Risk Informed Decision Making according to R.G. 1.174 principles. This approach focuses on the incorporation of not only equipment ageing but also effectiveness of maintenance and efficiency of surveillance testing explicitly into APSA models and data. An example of application is presented, which centres on a critical safety-related equipment of a NPP in order to evaluate the risk impact of considering different approaches to APSA and the combined effect of equipment ageing and maintenance and testing alternatives along NPP design life. The risk impact of the several alternatives is quantified and the results shows that such risk depends largely on the model parameters, such as ageing factor, maintenance effectiveness, test efficiency.Authors are grateful to the Spanish Ministry of Science and Innovation for the financial support of this work (Research Project ENE2013-45540-R) and the Doctoral Fellow (BES-2011-043906).Martón Lluch, I.; Sánchez Galdón, AI.; Martorell Alsina, SS. (2015). Ageing PSA incorporating effectiveness of maintenance and testing. Reliability Engineering and System Safety. 139:131-140. https://doi.org/10.1016/j.ress.2015.03.022S13114013

Joan Solà

Obres ressenyades: Neus NOGUÉ ; Emili BOIX ; Sebastià BONET ; Lluís PAYRATÓ (eds.), Joan Solà. 10 textos d'homenatge. Barcelona: Empúries, 2010 ; Joan SOLÀ, L'última lliçó. Parlaments polítics i acadèmics. Barcelona: Empúries, 201

Bibliografia

Obra ressenyada: Francis BEZLER, Les pénitentiels espagnols. Contributions a l'étude de la civilization de l'Espagne Chrétienne du Haut Moyen Age. Münster, 1994

Portada

PORTADA: El voltor comú avui en dia és present als cingles del Collsacabra, on era accidental fa tot just uns anys. Foto: Carles Martorell i Gendr