Coupled thermalhydraulic-neutronic stability extended criterion in a SFR core

F. Bertrand, X. Manchon,N. Marie,J.B. Droin,D. Schmitt,M. Lance,P. Sciora

Nuclear Engineering and Design（2019）

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摘要

•A coupled thermalhydraulic-neutronic flow stability criterion is established for SFRs.•Pressure drop and power evolutions are considered in the criterion.•A linear stability analysis of 2 equations expressing flow and power evolution is done.•Reactivity feedback of enthalpy change on SA power is modelled.•The capability of the criterion to predict ULOF flow behavior is shown.

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关键词

SFR,ULOF,Flow stability criterion,Flow excursion,CFV core,Severe accident

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