Conference paper Open Access
Evaluation of the ESFR end of cycle state and detailed analysis of spatial distributions of reactivity coefficients
Davies, Una; Margulis, Marat; Shwageraus, Eugene; Fridman, Emil; Garcia-Herranz, Nuria; Jimenez-Carrascosa, Antonio; Cabellos, Oscar; Gregg, Robbie; Krepel, Jiri
The ESFR-SMART project is the latest iteration of research into the behaviour of a commercial-size SFR core throughout its lifetime. As part of this project the ESFR core has been modelled by a range of different reactor physics simulation codes at its end of cycle state, and the important safety relevant parameters evaluated. These parameters are found to agree well between the different codes, giving good confidence in the results. A detailed mapping of the local sodium void worth is also performed due to the problems associated with the positive void coefficient seen in large SFR designs. The local void worth maps show that the use of zone-wise coefficients replicates the important reactivity feedbacks to a high degree, indicating their suitability for use in SFR simulations.
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- Publication date:
- November 8, 2020
- DOI:
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- Grants:
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European Commission:
- ESFR-SMART - European Sodium Fast Reactor Safety Measures Assessment and Research Tools (754501)
- Meeting:
- International Conference on Physics of Reactors 2020 (PHYSOR 2020), Cambridge, United Kingdom, 29 March - 2 April 2020
- License (for files):
- Creative Commons Attribution 4.0 International