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NEA Document
Examination of Approaches for Screening External Hazards for Nuclear Power Plants
NEA/CSNI/R(2018)7

It has long been recognised that external hazards can present a potential common cause source of initiating events that could challenge nuclear power plant safety. Modelling of these hazards is a com...

English WGEV Nuclear safety research CSNI
Published date: 2 April 2019
NEA Document
Comparison of Methodologies for the Simulation of Electrical Systems in Nuclear Power Plants: Working Group on Electrical Power Systems Activity 3 Report
NEA/CSNI/R(2018)10

One of the major conclusions of this workshop was that simulation of electrical systems has not been adequately discussed at the international level despite the fact that it is used more and more fre...

English WGELEC Nuclear safety research CSNI
Published date: 19 February 2019
NEA Document
NEA Benchmark Exercise: Computational Fluid Dynamic Prediction and Uncertainty Quantification of a GEMIX Mixing Layer Test
NEA/CSNI/R(2017)19
The main objectives of the current activity are the promotion, test and evaluation of various methodologies for uncertainty quantification in computational fluid dynamics (UQCFD) for nuclear reactor...
English Uncertainty quantification Nuclear safety research CSNI
Published date: 6 February 2019
NEA Document
Phase II of the Assessment of Structures Subjected to Concrete Pathologies (ASCET): Final Report
NEA/CSNI/R(2018)4

The objective of the CSNI ASCET activity is to make general recommendations for ageing management of concrete nuclear facilities taking into account the effect of concrete pathologies on structural d...

English WGIAGE Nuclear safety research CSNI
Published date: 21 January 2019
NEA Document
NEA Component Operational Experience, Degradation & Ageing Programme (CODAP): Second Term (2015-2017) Status Report
NEA/CSNI/R(2019)7
Several Nuclear Energy Agency (NEA) member countries have agreed to establish the Component Operational Experience, Degradation and Ageing Programme (CODAP) to encourage multilateral co-operation in...
English Nuclear safety research CSNI
Published date: 21 January 2019
NEA Document
Phase II of the Assessment of Structures Subjected to Concrete Pathologies (ASCET): Final Report (Appendix)
NEA/CSNI/R(2018)4/ADD1

Increasingly engineers are confronted with the need to perform predictive structural assessment based on limited or incomplete data set. This may include damage up to failure assessment (in the conte...

English WGIAGE Nuclear safety research CSNI
Published date: 1 January 2019
NEA Document
Status of Practice for Level 3 Probabilistic Safety Assessments
NEA/CSNI/R(2018)1

The mission of the Nuclear Energy Agency (NEA) Committee on the Safety of Nuclear Installations (CSNI) Working Group on Risk Assessment (WGRISK) is to advance understanding of probabilistic safety as...

English WGRISK Nuclear safety research CSNI
Published date: 19 December 2018
NEA Document
Cable Ageing in Nuclear Power Plants: Report on the First and Second Terms (2012-2017) of the NEA Cable Ageing Data and Knowledge (CADAK) Project
NEA/CSNI/R(2018)8

The number of ageing nuclear power plants (NPPs) is increasing in NEA member countries. Accordingly, maintenance programmes, in-service inspection and testing of structures, systems and components im...

English Nuclear safety research CSNI Safety of components and structures
Published date: 6 December 2018
NEA Document
Resolving Complex Safety Relevant Issues Related to Hydrogen Release in Nuclear Power Plant Containments During a Postulated Severe Accident
NEA/CSNI/R(2018)11

This is a summary report by the Hydrogen Mitigation Experiments for Reactor Safety (HYMERES) project on the PANDA and MISTRA experiments.

Phase 1 of the Project, between 2013 and 2016, focused on imp...

English Nuclear safety research CSNI Joint project
Published date: 23 November 2018
NEA Document
Integrity of Structures, Systems and Components Under Design and Beyond Design Loads in Nuclear Power Plants: Final Report of the Project on Metallic Component Margins Under High Seismic Loads (MECOS)
NEA/CSNI/R(2018)3

The Metallic Component Margins under High Seismic Loads (MECOS) Project is an international programme organised under an initiative of the NEA. The main objective of the MECOS Project is to quantify ...

English WGIAGE Nuclear safety research CSNI
Published date: 12 November 2018