Parametric thermo-hydraulic analysis of the TF system of JT-60SA during fast discharge

Gian Mario Polli, Benoit Lacroix, Louis Zani, Ugo Besi Vetrella, Antonio Cucchiaro

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Abstract

The evolution of the conductor temperature and of the helium pressure of the central pancake of the TF superconducting magnet of the JT-60SA tokamak in a quench scenario are here discussed. The quench is triggered by a heat disturbance applied at the end of burning and followed by a fast safety discharge. A parametric study aimed at assessing the robustness of the calculation is also addressed with special regard to the voltage threshold, used to define the occurrence of the quench, and to the time delay, that cover all the possible delays in the fast discharge after quench detection. Finally, due to sensitivity analyses the influences of different parameters were assessed: the material properties of the strands (RRR, copper fraction), the magnitude and the spatial length of the triggering disturbance and the magnetic field distribution. The numerical evaluations were performed in the framework of the Broader Approach Agreement in collaboration with CEA, ENEA and the JT-60SA European Home Team using the 1D code Gandalf [1]. © 2013 Elsevier B.V.
Original languageEnglish
Pages (from-to)1631 - 1634
Number of pages4
JournalFusion Engineering and Design
Volume88
Issue number9-10
DOIs
Publication statusPublished - Oct 2013
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Civil and Structural Engineering
  • Mechanical Engineering

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