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    NEA Document
    ICDE Project report: Lessons learnt from common-cause failures of motor-operated valves
    NEA/CSNI/R(2021)7

    This report presents a study performed on a set of common cause failure (CCF) events of motor operated valves (MOV) within the International Common Cause Failure Data Exchange (ICDE) project. In July...

    Nuclear safety Nuclear safety research CSNI PRG Databases CSNI Joint project Safety …
    Published date: 7 April 2025
    NEA Document
    ICDE Topical Report Operational Experience on Common-Cause Failures due to External Environmental Factors
    NEA/CSNI/R(2020)15

    This report presents a study performed on a set of common-cause failure (CCF) events within the International Common-cause failure Data Exchange (ICDE) project. The topic of the study was external fa...

    Nuclear safety Nuclear technology Nuclear safety research CSNI PRG Databases CSNI Joint project Safety Safety research …
    Published date: 4 April 2025
    NEA Document
    SOCRAT (Seismic Simulation of Overhead Crane on Shaking Table) International Benchmark Final Report
    NEA/CSNI/R(2023)11

    Background
    Bridge cranes, which are components that handle devices designed to lift and transfer heavy loads, are widely used in the nuclear sector. Assessing the dynamic behaviour of bridge cranes is...

    Nuclear safety Nuclear safety research CSNI PRG CSNI Safety Benchmark Safety research …
    Published date: 19 March 2025
    NEA Document
    Best Practice Guidelines for the Use of CFD in Nuclear Reactor Safety Applications – 2024 Update
    NEA/CSNI/R(2022)10

    The aim of this second revision of the Best Practice Guidelines (BPG) is to provide guidance to the user of computational fluid dynamics (CFD) codes, both novice and experienced, in the field of nucl...

    Nuclear safety Nuclear safety research CSNI PRG CSNI Safety Safety of components and structures Reactor technology Safety research CFD Best practices …
    Published date: 19 March 2025
    NEA Document
    NEA Kappa Workshop on Earthquake Ground Motions on Rock Sites 25-28 May 2021
    NEA/CSNI/R(2023)10

    The objective of this “Kappa Workshop on Earthquake Ground Motions on Rock Sites” (held remotely from 25-28 May 2021), organised by the NEA Working Group on Integrity and Ageing of Components and Str...

    WGIAGE Nuclear safety Nuclear safety research CSNI PRG CSNI …
    Published date: 17 March 2025
    NEA Document
    Proceedings of the International Workshop on Developments in Safety Assessment Approaches and Safety Management Practices of Fuel Cycle Facilities
    NEA/CSNI/R(2021)5

    The Working Group on Fuel Cycle Safety (WGFCS), which is part of the Committee on the Safety of Nuclear Installation (CSNI) of the Nuclear Energy Agency (NEA), held an international workshop on devel...

    Nuclear fuel Fuel studies France Nuclear safety WGFCS CSNI PRG Safety assessment CSNI Safety Nuclear fuel cycle …
    Published date: 10 February 2025
    NEA Document
    Improving Robustness Assessment Methodologies for Structures Impacted by MissileS – IRIS Phase 3
    NEA/CSNI/R(2023)5

    This report presents the description and the interpretation of the tests carried out in the third phase of the NEA Working Group on Integrity and Ageing of Components and Structures (WGIAGE) activity...

    WGIAGE Nuclear safety Nuclear safety research CSNI PRG CSNI Safety Safety of components and structures Safety research …
    Published date: 2 January 2025
    NEA Document
    Metallic Component Margins under High Seismic Loads (MECOS): Towards a New Approach for Seismic Design of Piping Systems
    NEA/CSNI/R(2021)12

    The seismic design rules for nuclear power plant piping systems that have been in practice since the 1960s have been applied to hundreds of piping supports and seismic restraints for nuclear power pl...

    WGIAGE Nuclear safety Nuclear safety research CSNI PRG CSNI Safety Safety research …
    Published date: 11 December 2024
    NEA Document
    Status Report on Reliability of Thermal-Hydraulic Passive Systems
    NEA/CSNI/R(2021)2

    Passive thermal-hydraulic systems are widely used in nuclear reactor safety and design. For example, primary circuits in existing boiling and pressurised water reactors are designed to take advantage...

    English WGAMA WGRISK Nuclear safety Accident analysis and management Nuclear technology Nuclear safety research CSNI PRG CSNI Safety Risk assessment Thermal hydraulics Accident management …
    Published date: 26 November 2024
    NEA Document
    WGAMA PERSEO Benchmark Results Report
    NEA/CSNI/R(2021)2/ADD

    PERSEO was built at SIET laboratory (Piacenza, Italy) to study a new passive decay heat removal system operating in natural circulation. The main innovation in PERSEO is the presence of two pools con...

    English WGAMA Nuclear safety Accident analysis and management Italy Nuclear safety research CSNI PRG CSNI Safety Accident management Pressurised water reactors …
    Published date: 26 November 2024
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