Development and assessment of ASTEC-Na fuel pin thermo-mechanical models performed in the European JASMIN project

S. Perez-Martin,W. Pfrang,N. Girault, L. Cloarec,L. Laborde,Michael Buck,V. Matuzas,A. Flores y Flores,P. Raison,A.L. Smith, N. Mozzani,F. Feria,L.E. Herranz, B. Farges

Annals of Nuclear Energy（2018）

Cited 5|Views14

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Abstract

•ASTEC-Na fuel pin thermo-mechanical models have been assessed in the JASMIN project.•A cladding mechanical model and an in-pin fuel relocation model have been developed.•ASTEC-Na predictions for 4 CABRI transient tests are compared to experimental data.•Conclusions on the overall ASTEC-Na fuel pin models performance are presented.

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Key words

Fuel pin thermo-mechanics,Fission gas behavior,Cladding mechanical model,Pin failure,Transient overpower,Power ramp,CABRI programs,Sodium-cooled Fast Reactors

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