The ICARE/CATHARE code system has been developed by the French “Institut de Radioprotection et de Suˆrete´ Nucle´aire” (IRSN) in the last decade for the detailed evaluation of Severe Accident (SA) consequences in a primary system. It is composed of the coupling of the core degradation IRSN code ICARE2 and of the thermalhydraulics French code CATHARE2. It has been extensively used to support the level 2 Probabilistic Safety Assessment (PSA-2) of the 900 MWe PWR. This paper presents the synthesis of the ICARE/CATHARE V1 assessment which was conducted in the frame of the “International ICARE/CATHARE Users’ Club”, under the management of IRSN. The ICARE/CATHARE V1 validation matrix is composed of more than 60 experiments, distributed in few thermal-hydraulics non-regression tests (to handle the front end phase of a severe accident), numerous Separate-Effect Tests, about 30 Integral Tests covering both the early and the late degradation phases, as well as a “circuit” experiment including hydraulics loops. Finally, the simulation of the TMI-2 accident was also added to assess the code against real conditions. This validation task was aimed at assessing the ICARE/CATHARE V1 capabilities (including the standalone ICARE2 V3mod1 version) and also at proposing recommendations for an optimal use of this version (“Users’ Guidelines”). Thus, with a correct account for the recommended guidelines, it appeared that the last ICARE/CATHARE V1 version could be reasonably used to perform best-estimate reactor studies up to a large corium slumping into the lower head.
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14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
0-7918-4246-0
PROCEEDINGS PAPER
Assessment of ICARE/CATHARE V1 Severe Accident Code Available to Purchase
Patrick Chatelard,
Patrick Chatelard
IRSN–Institut de Radioprotection et de Suˆrete´ Nucle´aire, Saint-Paul-lez-Durance, France
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Joe¨lle Fleurot,
Joe¨lle Fleurot
IRSN–Institut de Radioprotection et de Suˆrete´ Nucle´aire, Saint-Paul-lez-Durance, France
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Olivier Marchand,
Olivier Marchand
IRSN–Institut de Radioprotection et de Suˆrete´ Nucle´aire, Saint-Paul-lez-Durance, France
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Patrick Drai
Patrick Drai
IRSN–Institut de Radioprotection et de Suˆrete´ Nucle´aire, Saint-Paul-lez-Durance, France
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Patrick Chatelard
IRSN–Institut de Radioprotection et de Suˆrete´ Nucle´aire, Saint-Paul-lez-Durance, France
Joe¨lle Fleurot
IRSN–Institut de Radioprotection et de Suˆrete´ Nucle´aire, Saint-Paul-lez-Durance, France
Olivier Marchand
IRSN–Institut de Radioprotection et de Suˆrete´ Nucle´aire, Saint-Paul-lez-Durance, France
Patrick Drai
IRSN–Institut de Radioprotection et de Suˆrete´ Nucle´aire, Saint-Paul-lez-Durance, France
Paper No:
ICONE14-89307, pp. 145-154; 10 pages
Published Online:
September 17, 2008
Citation
Chatelard, P, Fleurot, J, Marchand, O, & Drai, P. "Assessment of ICARE/CATHARE V1 Severe Accident Code." Proceedings of the 14th International Conference on Nuclear Engineering. Volume 5: Safety and Security; Low Level Waste Management, Decontamination and Decommissioning; Nuclear Industry Forum. Miami, Florida, USA. July 17–20, 2006. pp. 145-154. ASME. https://doi.org/10.1115/ICONE14-89307
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