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NEA Document
Benchmarking Calculations on Halden IFA-650 LOCA Test Results
NEA/CSNI/R(2010)6

The NEA Working Group on Fuel Safety (WGFS) is tasked with advancing understanding of fuel safety issues by assessing the technical basis for current safety criteria and their applicability to high b...

English Nuclear safety research CSNI Benchmark WGFS …
Published date: 15 November 2010
Publications and Reports
CSNI Technical Opinion Paper No. 19 - Applicability of Nuclear Fuel Safety Criteria to Accident-Tolerant Fuel Designs

Following the accident at the Fukushima Daiichi Nuclear Power Plant, many countries began funding research and development on nuclear fuel designs with enhanced accident tolerance (ATFs). ATFs have i...

Fuel in nuclear safety English Nuclear safety research Accident tolerant fuels WGFS Technical Opinion Papers …
Published date: 18 July 2022
Publications and Reports
CSNI Technical Opinion Papers – No. 13

Acceptance criteria for emergency core cooling systems (ECCS) define the maximum temperature and degree of oxidation in order to avoid excessive embrittlement and hence failure of the fuel cladding, ...

English CSNI Nuclear safety regulation WGFS Technical Opinion Papers …
Published date: 21 September 2011
NEA Document
CSNI Technical Opinion Papers No.13: LOCA Criteria Basis and Test Methodology
NEA/CSNI/R(2011)7

The NEA Committe on the Safety of Nuclear Installations (CSNI), noting that different approaches to determining cladding embrittlement criteria produced nearly identical limits, asked the Working Gro...

English Nuclear safety research CSNI WGFS
Published date: 1 January 2011
NEA Document
Leaking Fuel Impacts and Practices
NEA/CSNI/R(2014)10

The impact of leaking fuel rods on the operation of nuclear power plants and the practices of handling leaking fuel has been reviewed by the CSNI Working Group on Fuel Safety (WGFS) in order to promo...

English Nuclear safety research CSNI WGFS
Published date: 18 July 2014
NEA Document
Nuclear Fuel Behaviour during Reactivity Initiated Accidents (RIA): Workshop Proceedings
NEA/CSNI/R(2010)7

The NEA Working Group on Fuel Safety (WGFS) is tasked with advancing the current understanding of fuel safety issues by assessing the technical basis for current safety criteria and their applicabili...

English Nuclear safety research CSNI Proceedings WGFS …
Published date: 15 December 2010
Publications and Reports
English CSNI Nuclear safety regulation WGFS
Published date: 29 June 2009
NEA Document
Nuclear Fuel Behaviour in Loss-of-coolant Accident (LOCA) Conditions: State-of-the-art Report
NEA/CSNI/R(2009)15

The present report has been prepared by the Committee on the Safety of Nuclear Installations (CSNI) Working Group on Fuel Safety (WGFS) and covers the following technical aspects:

  • description of dif...
English State-of-the-art report Collective opinion Nuclear safety research Consensus position CSNI WGFS …
Published date: 1 January 2009
Publications and Reports
English CSNI Nuclear safety regulation WGFS
Published date: 24 March 2010
NEA Document
Nuclear Fuel Behaviour under Reactivity-initiated Accident (RIA) Conditions: State-of-the-art Report 2010
NEA/CSNI/R(2010)1

In 1986, a working group of the NEA Committee on the Safety of Nuclear Installations issued a state-of-the-art report on water reactor fuel behaviour in design-basis accident (DBA) conditions. The re...

Fuel in nuclear safety English Nuclear safety research CSNI WGFS …
Published date: 23 April 2010
Publications and Reports
English CSNI Nuclear safety regulation WGFS
Published date: 14 September 2012
NEA Document
Nuclear Fuel Safety Criteria Technical Review: Second Edition
NEA/CSNI/R(2012)3

A set of fuel-related safety criteria was presented – along with both the rationale for having such criteria and possible new design and operational issues which could have an effect on them – in the...

Fuel in nuclear safety English Nuclear safety research CSNI WGFS …
Published date: 1 January 2012
NEA Document
Pellet-Cladding Interaction (PCI) in Water-Cooled Reactors: Proceedings of a WGFS Workshop
NEA/CSNI/R(2018)9

This report documents the proceedings of the Workshop on Pellet-Cladding Interaction (PCI) in Water-Cooled Reactors held in Lucca, Italy on 22-24 June 2016. The workshop was organised jointly by the ...

English Nuclear safety research CSNI Proceedings WGFS …
Published date: 11 June 2018
NEA Document
Phenomena Identification and Ranking Table: R&D Priorities for Loss-of-Cooling and Loss-of-Coolant Accidents in Spent Nuclear Fuel Pools
NEA/CSNI/R(2017)18
The main objective of the report is to identify research and development priorities related to loss-of-cooling and loss-of-coolant accidents in spent fuel pools. This is done by applying a PIRT proc...
English Spent fuel Nuclear safety research CSNI WGFS …
Published date: 11 June 2018
News
Progress in reactivity-initiated accident research

Two new reports from the WGFS highlight the latest developments in RIA research.

News brief Fuel studies Accident analysis and management Nuclear safety research CSNI WGFS Safety research …
Published date: 30 November 2022
NEA Document
Reactivity Initiated Accident (RIA) Fuel Codes Benchmark Phase-II – Volume 1: Simplified Cases Results Summary and Analysis
NEA/CSNI/R(2016)6/VOL1

Reactivity-initiated accident (RIA) fuel rod codes have been developed for a significant period of time and validated against their own available database. However, the high complexity of the scenari...

English Nuclear safety research CSNI Benchmark WGFS …
Published date: 19 April 2016
NEA Document
Reactivity Initiated Accident (RIA) Fuel Codes Benchmark Phase-II – Volume 2: Task No. 1 Specifications
NEA/CSNI/R(2016)6/VOL2

Reactivity-initiated accident (RIA) fuel rod codes have been developed for a significant period of time and validated against their own available database. However, the high complexity of the scenari...

English Nuclear safety research CSNI Benchmark WGFS …
Published date: 1 February 2016
NEA Document
Reactivity Initiated Accident Benchmark Phase III Report
NEA/CSNI/R(2020)10

Following the recommendations from the technical workshop on “Nuclear Fuel Behaviour during Reactivity-Initiated Accidents” organised by the Nuclear Energy Agency (NEA) in September 2009, a first ben...

Fuel studies Nuclear safety Nuclear technology Nuclear security Nuclear safety research CSNI PRG CSNI Safety CNRA Uncertainty analysis Nuclear safety regulation WGFS …
Published date: 18 October 2022
Publications and Reports
Reactivity-Initiated Accident Fuel Rod Codes Benchmark Phases I-III: Synthesis Report

One of the key areas in fuel safety is the analysis of fuel behaviour under reactivity-initiated accident conditions. Reactivity-initiated accident fuel rod codes have been developed for a significan...

Fuel in nuclear safety English Nuclear safety research CSNI WGFS …
Published date: 13 April 2022
NEA Document
Report on Fuel Fragmentation, Relocation and Dispersal (FFRD)
NEA/CSNI/R(2016)16

Since the time of the first LOCA experiments, which were largely conducted with fresh fuel, changes in the fuel design, the introduction of new cladding materials and in particular the move to high b...

English Nuclear safety research CSNI WGFS
Published date: 10 October 2016