Design prospect of remountable high-temperature superconducting magnet

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11 Citations (Scopus)

Abstract

The remountable (mountable and demountable repeatedly) high-temperature superconducting (HTS) magnet has been proposed for huge and complex superconducting magnets in future fusion reactors to fabricate and repair easily the magnet and access inner structural components. This paper summarizes progress in R&D activities of mechanical joints of HTS conductors in terms of the electrical resistance and heat transfer performance at the joint region. The latest experimental results show the low joint resistance, 4 nΩ under 70 kA current condition using REBCO HTS conductor with mechanical lap joint system, and for the cooling system the maximum heat flux of 0.4 MW/m2 is removed by using bronze sintered porous media with sub-cooled liquid nitrogen. These values indicate that there is large possibility to design the remountable HTS magnet for fusion reactors.

Original languageEnglish
Pages (from-to)2241-2245
Number of pages5
JournalFusion Engineering and Design
Volume89
Issue number9-10
DOIs
Publication statusPublished - 2014 Oct

Keywords

  • Cryogenic coolant
  • Heat transfer enhancement
  • High-temperature superconductor
  • Mechanical joint
  • Porous media
  • Superconducting magnet

ASJC Scopus subject areas

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

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