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Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T08A021, July 13–15, 2021
Paper No: PVP2021-61742
...) countermeasures against beyond design basis external hazards including earthquakes, tsunami and so on have been considered and the plans of installation of them have been accepted by Nuclear Regulatory Authority. On the other hand, since Probabilistic Risk Assessment (PRA) and Safety Margin Analysis (SMA...
Proc. ASME. PVP2011, Volume 6: Materials and Fabrication, Parts A and B, 1069-1075, July 17–21, 2011
Paper No: PVP2011-58073
... Conventional probabilistic risk assessments (PRAs) are not well-suited to addressing long-term reactor operations. Since passive structures, systems and components are among those for which refurbishment or replacement can be least practical, they might be expected to contribute increasingly...
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 6, Parts A and B, 1151-1155, July 18–22, 2010
Paper No: PVP2010-25750
... is problematic because the principal tool for risk-informed decision-making, Probabilistic Risk Assessment (PRA), is not ideally-suited to addressing aging systems. The components most likely to drive risk in an aging reactor - the passives - receive limited treatment in PRA, and furthermore, standard PRA...