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Feasible study on improvement of superconducting properties of a cable-in-conduit conductor by additional twist.

Research Project

Project/Area Number 23561004
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionNational Institute for Fusion Science

Principal Investigator

IMAGAWA Shinsaku  核融合科学研究所, ヘリカル研究部, 教授 (10232604)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords超伝導 / ねじりひずみ / ケーブル・イン・コンジット導体 / ボイド率 / ひずみゲージ / ケーブル・イン・コンジット導体 / ケーブル・イン・コンジット / ねじり / ひずみ
Research Abstract

A sub-size sample of Cable-In-Conduit conductor is prepared. Six sub-cables made of 3x4 copper wires are twisted, and they are inserted into a SUS304 pipe (conduit) of the diameter of 17 mm and the length of 0.5 m. A special tool is manufactured to twist or to pull and push the conductor sample. One end of the conduit is fixed, and the opposite end is rotated or pulled with the tool. It is shown that the tensile strain is induced in the wire by twisting the conduit in the same direction to the wire twisting direction and that the strain change of wires is in the order of 1/10 of the conduit.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (6 results)

All 2013

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (2 results)

  • [Journal Article] Joint resistance measurement of pancake and terminal joints for JT-60SA EF coils2013

    • Author(s)
      T. Obana, K. Takahata, S. Hamaguchi, T. Mito, S. Imagawa, K. Kizu, H. Murakami, and K. Yoshida
    • Journal Title

      Fusion Engineering and Design

      Volume: Vol. 888 Pages: 2773-2776

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of bending on critical current and n-value of react-and-jacket processed Nb_3Sn conductor2013

    • Author(s)
      K. Takahata, H. Tamura, T. Mito, S. Imagawa, and A. Sagara
    • Journal Title

      Plasma and Fusion Research

      Volume: Vol. 8 Pages: 2405008-2405008

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Joint resistance measurements of pancake and terminal joints for JT-60SA EF coils.2013

    • Author(s)
      T. Obana, K. Takahata, S. Hamaguchi, T. Mito, S. Imagawa, K. Kizu, H. Murakami, K. Yoshida
    • Journal Title

      Fusion Engineering and Design

      Volume: 88 Issue: 11 Pages: 2773-2776

    • DOI

      10.1016/j.fusengdes.2013.04.022

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Bending on Critical Current and n-Value of React-and-Jacket Processed Nb<sub>3</sub>Sn Conductor2013

    • Author(s)
      K. Takahata, H. Tamura, T. Mito, S. Imagawa, A. Sagara
    • Journal Title

      Plasma and Fusion Research

      Volume: 8 Issue: 0 Pages: 2405008-2405008

    • DOI

      10.1585/pfr.8.2405008

    • NAID

      130005076169

    • ISSN
      1880-6821
    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] Experimental study on stress change of wires in a cable-in-conduit conductor by being twisted2013

    • Author(s)
      S. Imagawa
    • Organizer
      23rd International TOKI Conference
    • Place of Presentation
      Toki, GIFU, Japan
    • Related Report
      2013 Final Research Report
  • [Presentation] Experimental study on stress change of wires in a cable-in-conduit conductor by being twisted.2013

    • Author(s)
      S. Imagawa
    • Organizer
      23rd International TOKI Conference
    • Place of Presentation
      Toki, GIFU, Japan
    • Related Report
      2013 Annual Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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