Application of inter-linked superconducting coils for central solenoid and advanced divertor configuration of DEMO

Hiroyasu Utoh, Nobuyuki Asakura, Kenji Tobita, Yoshiteru Sakamoto, Youji Someya, Kazuo Hoshino, Makoto Nakamura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

To determine the engineering feasibility of an "inter-linked" (IL) superconducting central solenoid (CS) and poloidal field (PF) coil, we studied the basic engineering design of the IL-CS and PF coil. We were able to use IL superconducting coils in a tokamak fusion demonstration power plant (DEMO) reactor to achieve a sufficient amount of the CS magnetic flux swing for the current ramp-up while maintaining plasma size and also achieving an advanced divertor concepts of "super-X divertor (SXD)" by locating near the plasma. A basic idea of the IL superconducting CS and PF coil concept is to wind a CS (PF coil) such that it is linked in a set of toroidal field (TF) coils. In this study, we considered the conductor and feeder design of the IL-CS and PF coil including the superconducting strand type, cooling, and winding and assembly methods, and determined that react and wind Nb3Al is a candidate for use in an IL coil and feeder in this specification. This paper presents the preliminary engineering design results of the IL superconducting CS and PF coil for creating a SXD equilibrium configuration.

Original languageEnglish
Pages (from-to)2456-2460
Number of pages5
JournalFusion Engineering and Design
Volume89
Issue number9-10
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes

Fingerprint

Solenoids
Plasmas
Magnetic flux
Superconducting coils
Power plants
Demonstrations
Fusion reactions
Cooling
Specifications

Keywords

  • Central solenoid
  • Fusion reactor design
  • Inter-linked
  • Magnetic flux swing
  • Super-X divertor
  • Superconducting magnet

ASJC Scopus subject areas

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

Cite this

Application of inter-linked superconducting coils for central solenoid and advanced divertor configuration of DEMO. / Utoh, Hiroyasu; Asakura, Nobuyuki; Tobita, Kenji; Sakamoto, Yoshiteru; Someya, Youji; Hoshino, Kazuo; Nakamura, Makoto.

In: Fusion Engineering and Design, Vol. 89, No. 9-10, 01.01.2014, p. 2456-2460.

Research output: Contribution to journalArticle

Utoh, Hiroyasu ; Asakura, Nobuyuki ; Tobita, Kenji ; Sakamoto, Yoshiteru ; Someya, Youji ; Hoshino, Kazuo ; Nakamura, Makoto. / Application of inter-linked superconducting coils for central solenoid and advanced divertor configuration of DEMO. In: Fusion Engineering and Design. 2014 ; Vol. 89, No. 9-10. pp. 2456-2460.
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