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NEA Document
The Effect of Temperature on the Neutron Multiplication Factor for Pressurised Water Reactor Fuel Assemblies: A Temperature Analysis Benchmark
NEA/NSC/R(2022)1

10.1787/3ea69249-en

There is significant international interest in the effects of temperature on criticality safety evaluations. Improved access to nuclear data, notably thermal scattering data S(α,β...

Nuclear science WPNCS Benchmark Pressurised water reactors
Published date: 12 June 2025
Publications and Reports
Nuclear Safety Research Support Facilities for Existing and Advanced Reactors: 2021 Update

Experimental facilities in nuclear energy are key to addressing safety issues. The recent loss of some critical infrastructure, from facilities to industry expertise, has therefore become a concern f...

English Boiling water reactors Molten salt reactors Nuclear safety Light water reactors Safety Advanced reactors Safety research Sodium-cooled reactor Gas-cooled reactors Pressurised heavy water reactors Pressurised water reactors …
Published date: 8 September 2021
Activity
Benchmark Activities on Reactor Single- and Multi-Physics of the Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS)

The Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) and its expert groups co-ordinate benchmark activities on Reactor Single- and Multi-Physics. The benchmark ac...

Multi-physics simulations Boiling water reactors Nuclear science Light water reactors Artificial Intelligence Liquid metal reactors WPRS Advanced reactors Reactor physics Machine Learning Verification and validation Uncertainty quantification Benchmark Pressurised water reactors …
Published date: 11 December 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
Joint project
Bubbler Condenser Project

General view of the EREC test facility BC V-213, source: EREC

 

There are several VVER-440/213* type nuclear power plants operating in the Czech Republic, Hungary, Slovak Republic, Russia and Ukraine...

Nuclear safety research Joint project Accident management Pressurised water reactors
Published date: 6 October 2023
Joint project
PSB-VVER Project

Scheme of the PSB-VVER facility, EREC

The NEA PSB-VVER project provided unique and useful experimental data for code validation using the PSB-VVER test facility. The PSB-VVER facility is a large-scal...

Accident analysis and management Thermal hydraulics Nuclear safety research Joint project Pressurised water reactors Safety research …
Published date: 6 October 2023
Activity
Benchmark for Uncertainty Analysis in Best-Estimate Modelling for Design, Operation and Safety Analysis of Light Water Reactors (LWR-UAM)

The goal of the Benchmark for Uncertainty Analysis in Best-Estimate Modelling for Design, Operation and Safety Analysis of Light Water Reactors (LWR-UAM) is to determine the uncertainty in light wate...

Modelling and simulation Reactor physics Light water reactors Verification and validation Validation Uncertainty quantification Uncertainty analysis Benchmark Reactor physics Pressurised water reactors …
Published date: 25 April 2023
NEA Document
International Benchmark on Pressurised Water Reactor Sub-channel and Bundle Tests - Volume III: Departure from nucleate boiling
NEA/NSC/R(2015)7

The need to refine models for best-estimate calculations based on good-quality experimental data has arisen for various nuclear applications. One of the most extensive and valuable databases availabl...

English Nuclear science WPRS Multiphysics Thermal hydraulics and mechanics EGTHM Reactor physics Reactor physics NSC Nuclear science Benchmark Pressurised water reactors …
Published date: 2 October 2015
NEA Document
OECD/NRC Benchmark Based on NUPEC Pressurised Water Reactor Sub-channel and Bundle Tests (PSBT) - Volume I: Experimental database and final problem specifications
NEA/NSC/DOC(2012)1

Based on the success of the OECD/NRC BFBT Benchmark, Japan released data based on the NUPEC PWR Sub-channel and Bundle Tests (PSBT) Benchmark and asked Pennsylvania State University (PSU) in the Unit...

English Nuclear science WPRS Multiphysics EGTHM Reactor physics Multiphysics Reactor physics NSC Nuclear science Benchmark Pressurised water reactors …
Published date: 4 January 2012
Publications and Reports
Pressurised Water Reactor Main Steam Line Break (MSLB) Benchmark - Volume I

Since the beginning of benchmark activities, two benchmark workshops took place. The first was held in Madrid, Spain (June 1998), and the second in Garching near Munich, Germany (March 1999). It was ...

English Nuclear science Nuclear safety research Safety of components and structures Thermal hydraulics and mechanics Modelling and simulation Thermal hydraulics Verification and validation Uncertainty analysis Nuclear science Benchmark Pressurised water reactors …
Published date: 1 January 1999