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Codes And Methods Improvements for VVER comprehensive safety assessment

Description du projet

Améliorer les codes et les méthodes pour les réacteurs VVER

Le réacteur énergétique eau-eau (connu sous l’acronyme VVER) représente une part importante du marché européen de l’énergie. Son fonctionnement sûr à long terme repose sur l’utilisation industrielle de codes et de méthodes neutroniques et thermo-hydrauliques nous permettant d’étudier le comportement de la centrale dans des conditions normales et en cas d’accident. Toutefois, ces codes et méthodes sont soumis à des contrôles d’exportation internationaux et extraeuropéens. Une nouvelle génération de codes et de méthodes innovants permettant l’ouverture du marché VVER à l’industrie nucléaire européenne a été développée. Le projet CAMIVVER, financé par l’UE, entend améliorer les codes et méthodes européens pour l’évaluation de sécurité inclusive des réacteurs VVER. Il s’attaquera aux développements nécessaires pour rendre entièrement applicables les nouveaux codes aux VVER, généralisera le couplage multiphysique en 3D et testera l’évaluation de la sécurité.

Objectif

VVER reactors constitute a significant and dynamic part of the European energy market. The safe LTO of VVER (maintenance, refuelling, safety-upgrade, revamping) is based on the industrial use of neutronics and thermal-hydraulics codes and methods that allow studying the behaviour of the plant in normal and accidental conditions. The objective of CAMIVVER project is to develop and improve codes and methods for VVER comprehensive safety assessment. Such development is strongly required for the following reasons:

1) Current codes and methods used for VVER safety assessment are subjected to international export controls from outside EU. Export controls from major countries have increase in the last years, threatening the EU sovereignty and security in terms of energy supply.

2) A new generation of innovative codes and methods are being developed within Europe. These new codes and methods are improving 3D-multiphysics modelling capabilities, and uncertainty quantification capabilities. These codes and methods are worth being transferred from lab to industry as they will substantially improve the physics comprehension of PWR and VVER behaviour.

3) European codes and methods development for VVER safety assessment will open the VVER market to the European nuclear industry and will support a free and fair competition on this market. To achieve this objective, CAMIVVER will perform developments required for the new generation codes to be fully applied on VVER scope (and to PWR scope too), CAMIVVER will generalise 3D-multiphysics coupling, CAMIVVER will perform experimental validation and benchmark against current industrial codes used for VVER safety assessment, and CAMIVVER will demonstrate CFD utility and compatibility with uncertainty propagation in the frame of a safety assessment.

Finally, CAMIVVER will provide guidance to European Safety Authorities, to VVER operators, and to the international research community, concerning the use of these innovative approaches of codes and methods development.

Coordinateur

FRAMATOME
Contribution nette de l'UE
€ 1 346 047,50
Adresse
1 PLACE JEAN MILLIER TOUR AREVA
92400 Courbevoie
France

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Région
Ile-de-France Ile-de-France Hauts-de-Seine
Type d’activité
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Liens
Coût total
€ 1 346 047,50

Participants (6)