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MHD Flow in Curved Pipes Under a Nonuniform Magnetic Field

Mistrangelo, Chiara 1; Bühler, Leo 1
1 Karlsruher Institut für Technologie (KIT)

Abstract:

In fusion reactors, a very hot deuterium–tritium plasma is confined in a toroidal volume by means of a strong magnetic field. In the blanket structure that surrounds the fusion plasma, high-energy neutrons, produced in the D-T fusion reaction, are absorbed by the lithium-containing liquid metal releasing their kinetic energy in the form of volumetric thermal load and breeding the fuel component tritium. The liquid metal flows from the blanket toward external ancillary systems for purification and tritium extraction. When the electrically conducting fluid moves in the strong plasma-confining magnetic field, induced electric currents generate electromagnetic Lorentz forces, which modify velocity distribution and increase pressure losses compared with hydrodynamic flows. These magnetohydrodynamic (MHD) effects have to be investigated to determine their impact on blanket performance. A number of studies on pressure -driven and buoyant MHD flows in geometries related to blanket modules are available, while only few works consider MHD flows in pipelines connecting blanket and ancillary systems. In the present study, we investigate numerically liquid metal MHD flows in the pipes, which cross the shield that protects the superconducting magnets from neutron radiation-induced damages. ... mehr

Zugehörige Institution(en) am KIT Institut für Thermische Energietechnik und Sicherheit (ITES)
KIT-Bibliothek (BIB)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 09.2024
Sprache Englisch
Identifikator ISSN: 0093-3813, 1939-9375
KITopen-ID: 1000168961
HGF-Programm 31.13.04 (POF IV, LK 01) In Vessel Components
Erschienen in IEEE Transactions on Plasma Science
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Band 52
Heft 9
Seiten 3455–3461
Nachgewiesen in Dimensions
Scopus
Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie

Verlagsausgabe §
DOI: 10.5445/IR/1000168961
Veröffentlicht am 01.03.2024
Originalveröffentlichung
DOI: 10.1109/TPS.2024.3358018
Scopus
Zitationen: 2
Dimensions
Zitationen: 4
Seitenaufrufe: 58
seit 01.03.2024
Downloads: 30
seit 06.03.2024
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