EPJ Web Conf.
Volume 247, 2021PHYSOR2020 – International Conference on Physics of Reactors: Transition to a Scalable Nuclear Future
|Number of page(s)||8|
|Section||Advanced Modelling and Simulation|
|Published online||22 February 2021|
THE LiCore POWER PLANT SIMULATOR OF THE MOLTEN SALT FAST REACTOR
1 Laboratory for Reactor Physics and Systems behaviour (LRS) Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
2 Framatome 10 rue Juliette Récamier, 69006 Lyon, France
3 LPSC-IN2P3-CNRS / Université Grenoble Alpes / Grenoble INP LPSC 53 rue des Martyrs, 38026 Grenoble Cedex, France
4 CORYS 44 rue des Berges, 38024 Grenoble Cedex 01, France
Published online: 22 February 2021
Molten salt reactors as liquid-fuelled reactors are flexible in terms of operation or design choices, but they are very different in terms of design, operation and safety approach compared to solid-fuelled reactors. Such reactors call for a new definition of their operating procedures and safety approach. Dedicated developments and studies have been performed in the frame of the European SAMOFAR project of Horizon2020 and in parallel in France involving CNRS, CORYS and Framatome to develop a system code called LiCore adapted to such reactors, corresponding to a basic-principle power plant simulator. The neutronic model LiCore, at the centre of the simulator, corresponds to an improved point-kinetics model to take into account the specificities of a MSR, notably the circulation of the delayed neutron precursors out of the core. Coupled to a simple piston model for the fuel motion in the core, this code can perform calculations faster than real time to simulate the behaviour of the fuel circuit. Transient calculations performed with LiCore are presented, together with comparisons first to a simple point-kinetics model and then to 3D calculations with the TFM-OpenFOAM coupled code. Finally, the LiCore code has recently been integrated in the ALICES platform, the integrated simulation toolset designed by CORYS for the development, maintenance and operation of major simulator such as power plant simulators.
Key words: Molten salt reactors / power plant simulator / real time transient calculations
© The Authors, published by EDP Sciences, 2021
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