Description du projet
Des solutions prometteuses de systèmes de sûreté pour l’énergie nucléaire
L’énergie nucléaire est susceptible de constituer un élément important du futur paysage énergétique. Avec peu d’accidents, les centrales nucléaires présentent un excellent bilan sécuritaire. L’Europe s’est toutefois engagée à l’améliorer plus encore grâce à des mesures innovantes qui stimuleront l’adoption de ses centrales et augmentera leur impact positif. C’est dans ce contexte que le projet PASTELS, financé par l’UE, travaille à l’optimisation des outils numériques permettant de simuler avec précision certains des systèmes de sûreté les plus prometteurs (les systèmes dits passifs) adoptés actuellement à un rythme élevé par les centrales nucléaires non européennes. Ces outils soutiendront les lignes directrices et fourniront une feuille de route pour l’adoption et l’autorisation de ces technologies dans les futures centrales nucléaires européennes.
Objectif
PASTELS aims to significantly increase the knowledge within Europe of innovative passive systems, namely SACOs and CWCs, and the ability of several European system and CFD computational codes to be able to accurately model key phenomena such as natural circulation loops and condensation. This is very challenging due to their very specific properties, i.e. small driving forces working against high resistive forces which are specific to the concept of these technologies. Given the growing use of the SACO and CWC technologies in non-European NPPs, it is essential, especially with the foreseen future use of Small Medium Reactors (SMR) that the European nuclear community is able to adapt its current numerical tools to this promising technology. Extensive experimental testing (SET, CET and integral experiments) with representative operating conditions on semi-industrial full scale test facilities (PKL facility [DE] and PASI facility [FI]) will provide essential data to support the improvement of the numerical activities. Existing data from PERSEO and HERO-2 facilities will also be used. The numerical and experimental activities will be conducted in an integrated step-by-step approach. PASTELS will investigate improvements to models, novel methodologies for the coupling of system and CFD codes working at different scales. Additionally, important knowledge on the behaviour of the SACO and CWC will be captured through the observation of their behaviour during the test campaigns. Different and similar computational codes will be used by the partners in order to be able to benchmark and compare the different results obtained, understand the causes and propose strategies to improve them. All project results will feed into extensive methodology guidelines and a roadmap to achieving licensing and implementation of these innovative passive system technologies in future European NPPs.
Champ scientifique
Mots‑clés
Programme(s)
- H2020-Euratom - Euratom Main Programme
- H2020-Euratom-1. - Indirect actions
Régime de financement
IA - Innovation actionCoordinateur
75008 Paris
France