Uncertainty quantification for severe-accident reactor modelling: Set-up and first results of the Horizon-2020 project MUSA
The current Horizon-2020 project on “Management and Uncertainties of Severe Accidents (MUSA)” aims at applying Uncertainty Quantification (UQ) in the modelling of Severe Accidents (SA), particularly in predicting the radiological source term of mitigated and unmitigated accident reactor scenarios. A selected number of severe accident sequences of different nuclear power plant designs (e.g. PWR, VVER, and BWR) are addressed.
The application of the Best Estimate Plus Uncertainty (BEPU) methodology to reactor accident scenarios requires a number of key steps.
This paper describes each of these steps such as settled in the reactor applications work package of the EU MUSA project and pays particular attention to the choices made by partners. It presents preliminary results also with an emphasis on the major challenges posed by BEPU application in the field of SA analysis.
BRUMM Stephan;
GABRIELLI F.;
SANCHEZ ESPINOZA Victor Hugo;
STAKHANOVA A.;
NUDI M;
GROUDEV P.;
OU Pingwen;
HERRANZ L.;
2023-06-05
PERGAMON-ELSEVIER SCIENCE LTD
JRC131960
0306-4549 (online),
https://www.sciencedirect.com/science/article/pii/S0306454923002384?via%3Dihub,
https://publications.jrc.ec.europa.eu/repository/handle/JRC131960,
10.1016/j.anucene.2023.109919 (online),
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