Coupling Techniques for Multiphysics Modeling of Molten Salt Reactors

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    Abstract

    Molten Salt Reactors (MSRs) are receiving increased attention arising from their potential advantages compared to conventional reactors; these include inherent safety features and reduced costs. The circulating fuel in an MSR induces a strong coupling between neutronics and thermal hydraulics, in part due to the delayed neutron field being affected by the fuel velocity fields, thus requiring new modelling approaches. In this paper a conventional operator-splitting and a multiphysics coupling technique between neutronics and thermal hydraulics, applied to a simple test geometry, are compared. Commercial software, ANSYS CFX for thermal hydraulics and MCNP for neutronics, are applied in the conventional operator-splitting technique, whereas multiphysics coupling is investigated by means of open source software OpenFOAM. In particular, fuel temperature, velocity and power distribution fields obtained by the two approaches are presented and compared.
    Original languageEnglish
    Publication date2018
    Number of pages12
    Publication statusPublished - 2018
    Event1st International Conference on Generation IV and Small Reactors - Ottawa Marriott Hotel, Ontario, Canada
    Duration: 6 Nov 20188 Nov 2018
    Conference number: 1

    Conference

    Conference1st International Conference on Generation IV and Small Reactors
    Number1
    LocationOttawa Marriott Hotel
    CountryCanada
    CityOntario
    Period06/11/201808/11/2018

    Cite this

    Nalbandyan, A., Klinkby, E. B., & Lauritzen, B. (2018). Coupling Techniques for Multiphysics Modeling of Molten Salt Reactors. Paper presented at 1st International Conference on Generation IV and Small Reactors, Ontario, Canada.