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Analytical Modeling of the Emergency Draining Tank for a Molten Salt Reactor

Massone, Mattia; Wang, Shisheng; Rineiski, Andrei

Abstract (englisch):
The Molten Salt Fast Reactor is a reactor concept developed by the European Union based
on a liquid fuel salt circulating through the reactor core. A peculiar emergency system,
which takes advantage of the liquid fuel state, is represented by a tank located underneath
the core, where the fuel can be passively drained and cooled; its geometry ensures that
the fuel remains in subcritical conditions.
In the framework of the SAMOFAR project, a design for the Emergency Draining Tank has been proposed: the tank shall be equipped with vertical cooling elements, arranged in a hexagonal grid; the liquid fuel salt, which heats up due to decay heat, will fill the gaps between the elements.
In this work, analytical methods (Green’s functions and orthogonal decomposition) are employed to study the transient heat transfer associated with the proposed design and to perform a preliminary dimensioning of the system, such that overheating is avoided in any moment of the transient and the fuel salt is kept in a liquid state and in safe conditions for a long time. The models are constituted by multilayer monodimensional slabs and cylinders, with a pure heat conduction model. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000097963
Veröffentlicht am 05.09.2019
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Kern- und Energietechnik (IKET)
Publikationstyp Buchaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISBN: 978-3-7315-0942-4
KITopen-ID: 1000097963
HGF-Programm 32.01.12 (POF III, LK 01) Transmutation:Sicherheitsanal.u.Studien
Erschienen in Annual Report 2017-2018 of the Institute for Nuclear and Energy Technologies. Ed.: T. Schulenberg
Verlag KIT Scientific Publishing
Seiten 19-28
Serie KIT Scientific Reports ; 7756
Schlagwörter MSFR, reactor safety, transient, heat conduction, emergency draining, Green’s function
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