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Containment thermal-hydraulics of current and future LWRs for severe accident management

Objective

"The presence of a stratification in a NPP containment is a source of concern, as pockets of hydrogen in high concentration could lead to a deflagration or detonation risk. The objectives of the project are two folds: one is to establish whether in a test sequence representative of a severe accident in a LWR a hydrogen (helium) stratification can be established during part of the transient starting from the initiation of the loss of coolant accident (LOCA) blowdown until the end of bulk hydrogen release from the reactor vessel into the containment, and the second is how this stratification can be broken down by the operation of Severe Accident Management systems (SAMs); sprays, coolers and Passive Auto-catalytic Recombiners. Experiments will be performed in the “smaller scale” TOSQAN (IRSN, Saclay), ""medium scale"" in the MISTRA (CEA, Saclay) and PANDA (PSI, Villigen) facilities. The specifications of the counterpart tests to be designed for the desired tests in the KMS facility (NITI, St Petersburg) will provide basis for code benchmarking at ""nearly prototypical scale”. State of art tools, lump parameter to CFD codes, are planned for pre- and post-test calculations and scenario analyses. A synthesis report to be produced will integrate the outcome of test results from the facilities as well as the code analysis in view of highlighting the anticipated behaviour in a LWR and point out to strengths and deficiencies in the predictive capabilities of the tools. To be coupled at the technical and administrative levels, the research will be conducted by two parallel running projects. One project consortium is composed of PSI (Switzerland), IRSN and CEA (France), KIT (Germany), NRG (The Netherlands) and AECL (Canada) and the second project to be run by the Russian organizations: IBRAE, SPbAEP, IPPE, and NITI (the Russian Federation). These two strongly interlinked and coordinated research projects will foster cooperation and provide means to reach a common safety goal."

Call for proposal

FP7-Fission-2009
See other projects for this call

Funding Scheme

CP-FP - Small or medium-scale focused research project

Coordinator

PAUL SCHERRER INSTITUT
Address
Forschungstrasse 111
5232 Villigen Psi
Switzerland
Activity type
Research Organisations
EU contribution
€ 419 610
Administrative Contact
Domenico Paladino (Dr.)

Participants (7)

INSTITUT DE RADIOPROTECTION ET DE SURETE NUCLEAIRE
France
EU contribution
€ 150 390
Address
Av De La Division Leclerc 31
92260 Fontenay Aux Roses
Activity type
Research Organisations
Administrative Contact
Didier Mestraletti (Mr.)
COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
France
EU contribution
€ 250 000
Address
Rue Leblanc 25
75015 Paris 15
Activity type
Research Organisations
Administrative Contact
Philippe Billot (Dr.)
KARLSRUHER INSTITUT FUER TECHNOLOGIE
Germany
EU contribution
€ 90 000
Address
Kaiserstrasse 12
76131 Karlsruhe
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Natascha Wallburg (Ms.)
NUCLEAR RESEARCH AND CONSULTANCY GROUP
Netherlands
EU contribution
€ 90 000
Address
Westerduinweg 3
1755 LE Petten
Activity type
Other
Administrative Contact
Ed Komen (Mr.)
Atomic Energy of Canada Limited
Canada
Address
Speakman Drive 2251
L5K 1B2 Mississauga
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Matthias Krause (Mr.)
FORSCHUNGSZENTRUM JULICH GMBH
Germany
Address
Wilhelm Johnen Strasse
52428 Julich
Activity type
Research Organisations
Administrative Contact
Alexandra De Schepper (Ms.)
U.S. Nuclear Regulatory Commission
United States
Address
Rockville Pike 11555
20555-0001 Rockville
Activity type
Public bodies (excluding Research Organisations and Secondary or Higher Education Establishments)
Administrative Contact
Richard Lee (Dr.)