THE SCANAIR CODE VERSION 3.2: MAIN FEATURES AND STATUS OF QUALIFICATION

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10/09/2001

IAEA Technical Committee Meeting on Fuel Behavior under Transient and LOCA Conditions, Halden, Norway, 10-14 September 2001

Type de document > *Congrès/colloque
Mots clés publication scientifique > CABRI , code de calcul , combustible nucléaire , RIA
Unité de recherche > Département de recherche en sécurité (DRS)
Auteurs > BESSIRON Vincent , LAMARE François , PAPIN Joëlle

Abstract The SCANAIR code is developed in order to describe the thermo-mechanical behavior of highly irradiated PWR fuel rods under Reactivity-Initiated Accident (RIA). The main features of the newly delivered version of the code (version 3.2) are presented. Zircaloy-4 cladding mechanical properties have been updated with the results of tests performed in the frame of the PROMETRA program. Fuel-cladding gap thermal conductance modeling, and its behavior at high temperature and large contact pressure, is presented. Current features of the fission gas behavior modeling are described. Then, the status of the physical qualification of the code is given, and focuses on the cladding-related mechanical behavior (cladding hoop strain and transient elongation), and on the fission gas release. Finally, the planned evolution of the code is outlined.

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