한국초전도저온공학회:학술대회논문집 (Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference)

한국초전도저온학회 (The Korean Society of Superconductivity and Cryogenics)
권호 표지

고온초전도 테이프를 이용한 다단 전류 도입선의 최적설계

Optimal Design of Multi-Step Current Leads Using HTS Tapes

  • 김민수 (전남대학교 자동차공학부) ;
  • 나필선 (전남대학교 자동차공학부) ;
  • 설승윤 (전남대학교 자동차공학부)
  • 발행 : 2001.02.01
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초록

The optimum cross-sectional area Profile of gas-cooled high-temperature superconductor (HTS) current lead is analyzed to have minimum helium boil-off rate. The conventional constant area HTS lead has much higher helium consumption than the optimum HTS lead considered in this study. The optimum HTS lead has variable cross-sectional area to have constant safety factor. An analytical formula of optimum shape of lead and temperature profile are obtained. For multi-step HTS current leads, the optimum tape lengths and minimum heat dissipation rate are also formulated. The developed formulations are applied to the Bi-2223 material, and the differences between constant area, constant safety-factor, and multi-step current leads are discussed.

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