86 research outputs found
The European “Severe Accident Phenomenology” (SAP) short course
No full textThe European “Severe Accident Phenomenology” (SAP) short course was launched in 2006 under the 6th EURATOM Framework programme in the frame of the European Severe Accident Research Network of Excellence (SARNET). It established the basis for keeping and transmitting the main knowledge about severe accidents (SA) gained after the Chernobyl accident. Since then, a total of ten SAP short courses have been held between 2006 and 2023. The last three courses, linked to NUGENIA TA2, were held in Ljubljana (2017), Cadarache (2019) and Bologna (2021, online). After the COVID-19pandemic, the first in-person course was held in Madrid from 19 to 23 June 2023, at ETSII-UPM, in the framework of the SEAKNOT projecta. It has been co‐organized by UPM (ES), CEA-IRESNE (FR), CIEMAT (ES), University of Pisa (IT) and Jožef Stefan Institute (SI)
Systematisation of Knowledge on Severe Accident Phenomena and Experiments for Preservation and Transmission
No full textAs a contribution to the transmission of knowledge on severe accidents, a methodology for developing a Phenomena Identification and Ranking Table (PIRT) for severe accident phenomena in light water nuclear reactors is proposed. The methodology takes into account the current state of knowledge as well as the importance for nuclear safety. The developed PIRT should identify the priorities for further research direction
Status of the TA2/SARNET R&D activities
No full textThe Technical Area N°2 “Severe accidents / SARNET” continues to be very active since severe accidents in Gen.II-III-III+ nuclear power plants are still a major R&D subject in a post-Fukushima accidents context. Six technical general issues are addressed: in-vessel corium/debris coolability, ex-vessel corium interactions and coolability, containment behaviour including hydrogen risk, source term released to the environment, impact of severe accidents on the environment and emergency management, and severe accident scenarios.
The presentation will summarize the current activities of diverse types:
- Periodic technical workshops: one on corium behaviour will take place mid-April during 1 week,
- ERMSAR international conferences every 2 years: the last one in April 2017, hosted by NCBJ in Warsaw (Poland) was a big success and the next one in March 2019 will be hosted by UJV in Prague (Czech Republic),
- Education and training courses on SA phenomenology and management: the last one, hosted by JSI in Ljubljana (Slovenia), was a success with 60 participants, and a course is under preparation in China,
- Periodic ranking of R&D priorities by the SARP group composed of experts from 16 organizations, the last exercise at end of 2017 being used as basis for the current update of the NUGENIA roadmap.
In addition several R&D “in-kind” projects were launched without external funding, thus based on partners’ own resources and competencies. They will be shortly described: CORE-SOAR on the update of the state-of-the art on core degradation, QUESA on code interpretation of air ingress experiments from SAFEST FP7 project, IPRESCA on pool scrubbing process of retention of fission products, and recently ASCOM on mutualisation of R&D on the ASTEC IRSN integral code.
Maintaining all these activities at their current level in the future is essential for sharing the knowledge, maintaining the competencies, training new researchers in the domain, and improving the severe accident management guidelines
Severe accident research in NUGENIA: the SARNET network
No full textSARNET (Severe Accident Research Network) was set up under the aegis of the Framework Programmes of the European Commission from 2004 to 2013 and coordinated by IRSN to perform R&D on severe accidents in water-cooled nuclear power plants
Severe accident research in Europe: SARNET network from Euratom to NUGENIA
No full textSARNET (Severe Accident Research Network) has been set up under the aegis of the Framework Programmes of the European Commission from 2004 to 2013 and under the IRSN coordination to perform R&D on severe accidents in water-cooled nuclear power plants. The network self-sustainability was achieved through integration mid-2013 in the NUGENIA European association devoted to R&D on fission technology of Generation II and III. The SARNET activities continue in the Technical Area “Severe accidents” through technical workshops, ranking of R&D priorities, improvements of severe accident codes, ERMSAR international conferences, and education and training courses.
Six technical domains are addressed in this Technical Area: in-vessel corium/debris coolability, ex-vessel corium interactions and coolability, containment behaviour, including hydrogen risk, source term released to the environment, impact of severe accidents on the environment and emergency management, and severe accident scenarios.
The ranking of research priorities in the NUGENIA R&D roadmap that was published in 2015 underlined the need to focus efforts in the next years on the improvement of prevention of severe accidents and on the mitigation of their consequences, as highlighted by the Fukushima Dai-ichi accidents. Several current or soon starting projects on mitigation of severe accident consequences in Euratom or NUGENIA frame are shortly described in this paper
L'explosion de vapeur (hors cuve) - Etat de la R&D et résultats récents ; positions au plan mondial
No full text
- …
