Prague, 28 June 2017
Towards spatial kinetics in a low void effect sodium fast reactor: core analysis and validation of the TFM neutronic approach
CEA, DEN, DER, Cadarache, 13108
Saint-Paul Les Durance Cedex, France
⁎ e-mail: firstname.lastname@example.org
Received in final form: 4 March 2017
Accepted: 17 March 2017
Published online: 14 June 2017
The studies presented in this paper are performed in the general framework of transient coupled calculations with accurate neutron kinetics models able to characterize spatial decoupling in the core. An innovative fission matrix interpolation model has been developed with a correlated sampling technique associated to the Transient Fission Matrix (TFM) approach. This paper presents a validation of this Monte Carlo based kinetic approach on sodium fast reactors. An application case representative of an assembly of the low void effect sodium fast reactor ASTRID is used to study the physics of this kind of system and to illustrate the capabilities provided by this approach. To validate the interpolation model developed, different comparisons have been performed with direct Monte Carlo and ERANOS deterministic S N calculations on spatial kinetics parameters (flux redistribution, reactivity estimation, etc.) together with point kinetics feedback estimations.
© A. Laureau et al., published by EDP Sciences,
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