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Titre: Safety analysis of reactivity insertion accidents in a heavy water nuclear research reactor core using coupled 3D neutron kinetics thermal-hydraulic system code technique
Auteur(s): Titouche Kouidri, W
Letaim, F
Boucenna, A
Boulhaouchet, M H
Mots-clés: Three dimensional neutron kinetics
Best estimate thermal-hydraulic codes
Steady state and accidents related to
positive reactivity insertion transients
Date de publication: 8-aoû-2018
Collection/Numéro: Progress in Nuclear Energy;Volume 85, November 2015, Pages 384-390
Résumé: Nuclear power plant Safety analysis using coupled 3D neutron kinetics/thermal-hydraulic codes technique is increasingly used nowadays. Actually, the use of this technique allows getting less conservatism and more realistic simulations of the physical phenomena. The challenge today is oriented toward the application of this technique to the operating conditions of nuclear research reactors. In the current study, a three-Dimensional Neutron Kinetics and best estimate Thermal-Hydraulic model based upon the coupled PARCS/RELAP5 codes has been developed and applied for a heavy water research reactor. The objective is to perform safety analysis related to design accidents of this reactor types. In the current study two positive reactivity insertion transients are considered, SCRAM protected and self-limiting power excursion cases. The results of the steady state calculations were compared with results obtained from conventional diffusion codes, while transient calculations were assessed using the point kinetic model of the RELAP5 code. Through this study, the applicability and the suitability of using the coupled code technique with respect to the classical models are emphasized and discussed.
URI/URL: http://dspace.univ-setif.dz:8888/jspui/handle/123456789/2549
ISSN: 0149-1970
Collection(s) :Articles

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