Evaluation of the Thermal Performance of the SC Feeders for the Magnetic System of the Divertor Tokamak Test Facility

The Divertor Tokamak Test (DTT) facility, under construction in Frascati, Italy, will rely on a fully-superconductive magnetic system. Superconductive feeders, designed as Nb-Ti cable-in-conduit conductors, will run into the cryostat from the cold boxes to the magnet winding terminations. They will...

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Bibliographic Details
Published inIEEE transactions on applied superconductivity Vol. 32; no. 6; pp. 1 - 5
Main Authors Placido, D., De Marzi, G., Di Zenobio, A., Ramogida, G., Savoldi, L., Viarengo, S.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Cables
Coils
Conductors
current feeders
Feeders
finite-element analysis
Fusion energy
Heating systems
Ohmic dissipation
Plasma temperature
Plasmas
Resistance heating
Superconducting magnets
Superconductors
temperature margin
Test facilities
Tokamak devices
Toroidal magnetic fields
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Summary:The Divertor Tokamak Test (DTT) facility, under construction in Frascati, Italy, will rely on a fully-superconductive magnetic system. Superconductive feeders, designed as Nb-Ti cable-in-conduit conductors, will run into the cryostat from the cold boxes to the magnet winding terminations. They will be cooled by Supercritical Helium at 0.6 MPa and 4.5 K, entering the cables at the location of the peak field. The feeders will be subject to AC losses during plasma operation, as well as radiative parasitic load from the thermal shield and Joule heating in the terminations. The minimum temperature margin, computed for the different feeders in the worst operating condition, is presented and discussed in this paper, showing the conservativeness of the design for such components.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2022.3161249