Reliability Assessment of Passive Safety Systems for Nuclear Energy Applications: State-of-the-Art and Open Issues

Francesco Di Maio , Nicola Pedroni , Barnabás Tóth , Luciano Burgazzi , Enrico Zio (1)

1 CRC - Centre de recherche sur les Risques et les Crises

Passive systems are fundamental for the safe development of Nuclear Power Plant (NPP) technology. The accurate assessment of their reliability is crucial for their use in the nuclear industry. In this paper, we present a review of the approaches and procedures for the reliability assessment of passive systems. We complete the work by discussing the pending open issues, in particular with respect to the need of novel sensitivity analysis methods, the role of empirical modelling and the integration of passive safety systems assessment in the (static/dynamic) Probabilistic Safety Assessment (PSA) framework.

Mots clés: reliability assessment; Probabilistic Safety Assessment; passive safety systems; nuclear power plants

Domaines: Physique [physics]

Francesco Di Maio, Nicola Pedroni, Barnabás Tóth, Luciano Burgazzi, Enrico Zio. Reliability Assessment of Passive Safety Systems for Nuclear Energy Applications: State-of-the-Art and Open Issues. Energies, 2021, 14 (15), pp.4688. ⟨10.3390/en14154688⟩. ⟨hal-03481389⟩