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Core LOSS during a severe accident

Objective

R&D work for 1300-PWR, BWR, VVER on risk-relevant core degradation issues is proposed with experiments at different scales up to integral tests.
Selected topics with large databases uncertainties are:
a)impact of high burn-up on UO2 and MOX dissolution
b)identification of fuel or collapse conditions
c)oxidation of B4C by steam and B4C control rod degradation / oxidation with related gas generated (H2, CH4,..) U-o-Zr oxidation kinetics.
Topics b) and c) include different plant design components. The lack of exp. data means also non-validated or missing models in SA codes in spite of safety consequences e.g. H2 rate or production of CH4 with favour organic Iodine formation. Models developed will be implemented in SA codes. Expected results: 1/H2 and B4C decomposition gas release during core collapse, 2/ B4C/burn-up/collapse models included in SA codes, 3/ >Feedback on safety and consequences on AMMs for various plant designs.

Coordinator

INSTITUT DE RADIOPROTECTION ET DE SURETE NUCLEAIRE
Address
77/83 Av. Du General De Gaule
92140 Clamart
France

Participants (15)

COMMISSION OF THE EUROPEAN COMMUNITIES
Italy
Address
Via Enrico Fermi 1
21020 Ispra
COMMISSION OF THE EUROPEAN COMMUNITIES
Germany
Address
Hermann-von-helmholtz Platz 1
76125 Karlsruhe
ELECTRICITE DE FRANCE SERVICE NATIONAL*
France
Address
Avenue Du Général De Gaulle 1
92141 Clamart
FORSCHUNGSZENTRUM KARLSRUHE GMBH - TECHNIK UND UMWELT
Germany
Address

76021 Karlsruhe
FRAMATOME ANP GMBH
Germany
Address
Freyeslebenstrasse 1
91058 Erlangen
ITALIAN AGENCY FOR NEW TECHNOLOGY, ENERGY AND THE ENVIRONMENT
Italy
Address
Via Martiri Di Monte Sole 4
40129 Bologna
KFKI - ATOMIC ENERGY RESEARCH INSTITUTE - HUNGARIAN ACADEMY OF SCIENCES
Hungary
Address
Konkoly-thege Miklos Ut 29-33
1121 Budapest
LAPPEENRANTA UNIVERSITY OF TECHNOLOGY
Finland
Address
34,Skinnarilankatu 34
53851 Lappeenranta
PAUL SCHERRER INSTITUT
Switzerland
Address

5232 Villigen
RUHR-UNIVERSITY BOCHUM
Germany
Address
150,Universitätsstraße 150
44780 Bochum
SIEMENS AG
Germany
Address
1,Freyeslebenstrasse 1
91058 Erlangen
SKODA - UJP, PRAHA A.S.
Czechia
Address
Nad Kaminkou 1345
15610 Praha 5
SOCIETE FRAMATOME
France
Address
Tour Framatome
92084 Paris La Défense
UNIVERSIDAD POLITECNICA DE MADRID
Spain
Address
C/josé Gutiérrez Abascal 2
28006 Madrid
UNIVERSITAET STUTTGART
Germany
Address
31,Pfaffenwaldring 31
70569 Stuttgart