ASTEC-Na is a computer code system which evaluates protected and unprotected accidents in Sodium-cooled Fast Reactors throughout the Initiation Phase. The fuel pin behavior models implemented in ASTEC-Na sum up the essential aspects of the thermal and mechanical behavior of SFR fuel pins undergoing an accidental transient. A specific cladding mechanical model and an in-pin fuel relocation model have been developed all through the project where the later has been already implemented in the code and is already available. ASTEC-Na fuel pin behavior models are described in this paper and their transient predictions for four CABRI transient tests are compared to available experimental data as well as to SAS-SFR and SIMMER-III code calculations. Conclusions on the overall performance of ASTEC-Na fuel pin models are also presented.
PEREZ-MARTIN S.;
PFRANG W.;
GIRAULT N.;
CLOAREC L.;
LABORDE L.;
BUCK M.;
MATUZAS Vaidas;
FLORES Y FLORES Alain;
RAISON Philippe;
SMITH Anna;
MOZZANI N.;
FERIA F.;
HERRANZ L.;
FARGUES B.;
2018-06-13
PERGAMON-ELSEVIER SCIENCE LTD
JRC106258
0306-4549,
https://publications.jrc.ec.europa.eu/repository/handle/JRC106258,
10.1016/j.anucene.2017.12.061,
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