Improved performances of the fast reactor calculational system ERANOS-ERALIB1 due to improved a priori nuclear data and consideration of additional specific integral data - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Annals of Nuclear Energy Année : 2003

Improved performances of the fast reactor calculational system ERANOS-ERALIB1 due to improved a priori nuclear data and consideration of additional specific integral data

Résumé

A single consistent scheme of calculational methods and nuclear data called ERANOSERALIB1 was produced in 1996 to calculate fast reactor neutronic parameters.It represents a significant improvement on previous schemes such as CARNAVAL-IV, PROPANE and VASCO, each of which were required in order to calculate one specific application.The nuclear data library ERALIB1 has been obtained by a consistent statistical adjustment based on 355 integral data from 71 different systems.The performance of ERALIB1 is excellent, as demonstrated during its validation for which all the k eff SUPER-PHENIX data were reproduced to within 70 pcm. The only restriction on this satisfactory performance is related to the rather poor prediction of the sodium void reactivity effect.This was due to very bad nuclear data for 23Na, and the unsatisfactory methods used to calculate the sensitivity coefficients for the sodium void reactivity variation deltap Na.To improve the performance relative to this point and to enlarge the domain of validation several actions have been undertaken:

Dates et versions

hal-02864389 , version 1 (11-06-2020)

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E. Fort, G. Rimpault, J.-C. Bosq, B. Camous, V. Zammit, et al.. Improved performances of the fast reactor calculational system ERANOS-ERALIB1 due to improved a priori nuclear data and consideration of additional specific integral data. Annals of Nuclear Energy, 2003, 30 (18), pp.1879-1898. ⟨10.1016/S0306-4549(03)00161-0⟩. ⟨hal-02864389⟩

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