Neutronic modeling strategies for a liquid fuel transient calculation

J.A. Blanco (1) , P. Rubiolo (1) , E. Dumonteil (2)

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 IRSN/PSN-EXP/SNC/LN - Laboratoire de Neutronique

Framework • A detailed and highly flexible numerical tool to study criticality accidents has been developed • The tool implements a Multi-Physics coupling using neutronics, thermal-hydraulics and thermal-mechanics models based on Open FOAM and SERPENT codes • Two neutronics models: Quasi-Static Monte Carlo and SPN Objective: In this work a system composed by a 2D square liquid fuel cavity filled with a fuel molten salt has been used to: • Investigate the performance of the tool’s thermal-hydraulics and neutronics solvers coupling numerical scheme • Evaluate possible strategies for the implementation of the Quasi-Static (QS) method with the Monte Carlo (MC) neutronics code • Compare the QS-MC approach precision and computational cost against the Simplified P3 (SP3) method

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

J.A. Blanco, P. Rubiolo, E. Dumonteil. Neutronic modeling strategies for a liquid fuel transient calculation. International Conference on Physics of Reactors 2020: Transition to a Scalable Nuclear Future, Mar 2020, Cambridge, United Kingdom. pp.06013, ⟨10.1051/epjconf/202124706013⟩. ⟨hal-03325385⟩