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      KCI등재 SCOPUS

      A comparison on the heat load of HTS current leads with respect to uniform and non-uniform cross-sectional areas

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      https://www.riss.kr/link?id=A105114048

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      다국어 초록 (Multilingual Abstract)

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      Current lead is a device that connects the power supply and superconducting magnets. High temperature superconductor (HTS) has lower thermal conductivity and higher current density than normal metal. For these reasons, the heat load can be reduced by replacing the normal metal of the current lead with the HTS. Conventional HTS current lead has same cross-sectional area in the axial direction. However, this is over-designed at the cold-end (4.2 K) in terms of current. The heat load can be reduced by reducing this part because the heat load is proportional to the cross-sectional area. Therefore, in this paper, heat load was calculated from the heat diffusion equation of HTS current leads with uniform and non-uniform cross-sectional areas. The cross-sectional area of the warm-end (65K) is designed considering burnout time when cooling system failure occurs. In cold-end, Joule heat and heat load due to current conduction occurs at the same time, so the cross-sectional area where the sum of the two heat is minimum is obtained. As a result of simulation, current leads for KSTAR TF coils with uniform and non-uniform cross-sectional areas were designed, and it was confirmed that the non-uniform cross-sectional areas could further reduce the heat load.
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      Current lead is a device that connects the power supply and superconducting magnets. High temperature superconductor (HTS) has lower thermal conductivity and higher current density than normal metal. For these reasons, the heat load can be reduced by ...

      Current lead is a device that connects the power supply and superconducting magnets. High temperature superconductor (HTS) has lower thermal conductivity and higher current density than normal metal. For these reasons, the heat load can be reduced by replacing the normal metal of the current lead with the HTS. Conventional HTS current lead has same cross-sectional area in the axial direction. However, this is over-designed at the cold-end (4.2 K) in terms of current. The heat load can be reduced by reducing this part because the heat load is proportional to the cross-sectional area. Therefore, in this paper, heat load was calculated from the heat diffusion equation of HTS current leads with uniform and non-uniform cross-sectional areas. The cross-sectional area of the warm-end (65K) is designed considering burnout time when cooling system failure occurs. In cold-end, Joule heat and heat load due to current conduction occurs at the same time, so the cross-sectional area where the sum of the two heat is minimum is obtained. As a result of simulation, current leads for KSTAR TF coils with uniform and non-uniform cross-sectional areas were designed, and it was confirmed that the non-uniform cross-sectional areas could further reduce the heat load.

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      참고문헌 (Reference)

      1 P. Bauer, "Test results of 52/68 kA trial HTS current leads for ITER" 20 (20): 1718-1721, 2010

      2 P. Bauer, "Test of a 10 kA HTS Current Lead for ITER" 21 (21): 1074-1078, 2011

      3 K. Ding, "Safety research of the 68 kA trial-HTS current lead for ITER" 20 (20): 1729-1732, 2010

      4 P. Bauer, "R&D towards HTS current leads for ITER" 19 (19): 1500-1503, 2009

      5 T. Zhou, "R & D on 52kA HTS Trial Current Lead for ITER ITR / P1-55"

      6 S. Y. Seol, "Optimum Design of Multi-Stacking Current Lead Using HTS Tapes" 35-39, 2001

      7 F. P. Incropera, "Fundamentals of Heat and Mass Transfer" John Wiley & Sons 2011

      8 Y. Iwasa, "Case Studies in Superconducting Magnets" Springer-Verlag 2009

      9 S. Nam, "A Study on the YBCO-Coated Conductor Current Lead With Asymmetric Structure Tape Considering Temperature Distribution" 27 (27): 4-8, 2017

      1 P. Bauer, "Test results of 52/68 kA trial HTS current leads for ITER" 20 (20): 1718-1721, 2010

      2 P. Bauer, "Test of a 10 kA HTS Current Lead for ITER" 21 (21): 1074-1078, 2011

      3 K. Ding, "Safety research of the 68 kA trial-HTS current lead for ITER" 20 (20): 1729-1732, 2010

      4 P. Bauer, "R&D towards HTS current leads for ITER" 19 (19): 1500-1503, 2009

      5 T. Zhou, "R & D on 52kA HTS Trial Current Lead for ITER ITR / P1-55"

      6 S. Y. Seol, "Optimum Design of Multi-Stacking Current Lead Using HTS Tapes" 35-39, 2001

      7 F. P. Incropera, "Fundamentals of Heat and Mass Transfer" John Wiley & Sons 2011

      8 Y. Iwasa, "Case Studies in Superconducting Magnets" Springer-Verlag 2009

      9 S. Nam, "A Study on the YBCO-Coated Conductor Current Lead With Asymmetric Structure Tape Considering Temperature Distribution" 27 (27): 4-8, 2017

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      공동연구자 (7)

      유사연구자 (20) 활용도상위20명

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      학술지 이력

      학술지 이력
      연월일 이력구분 이력상세 등재구분
      2023 평가예정 해외DB학술지평가 신청대상 (해외등재 학술지 평가)
      2021-06-23 학회명변경 한글명 : 한국초전도.저온공학회 -> 한국초전도저온학회
      영문명 : 미등록 -> The Korean Society of Superconductivity and Cryogenics (KSSC)      		 KCI등재
      2020-01-01 평가 등재학술지 유지 (해외등재 학술지 평가) KCI등재
      2017-08-01 평가 SCOPUS 등재 (기타) KCI등재
      2016-01-01 평가 등재학술지 유지 (계속평가) KCI등재
      2013-03-26 학술지명변경 한글명 : 한국초전도.저온공학회논문지 -> 한국초전도.저온논문지
      외국어명 : Superconductivity and Cryogenics -> Progress in Superconductivity and Cryogenics      		 KCI등재
      2013-03-01 평가 등재학술지 유지 (기타) KCI등재
      2011-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2009-04-06 학술지명변경 외국어명 : Journal of the Koera Institute of Applied Superconductivity and Cryogenics -> Superconductivity and Cryogenics KCI등재
      2008-01-01 평가 등재학술지 선정 (등재후보2차) KCI등재
      2007-01-01 평가 등재후보 1차 PASS (등재후보1차) KCI등재후보
      2005-01-01 평가 등재후보학술지 선정 (신규평가) KCI등재후보
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      학술지 인용정보

      학술지 인용정보
      기준연도 WOS-KCI 통합IF(2년) KCIF(2년) KCIF(3년)
      2016 0.22 0.22 0.17
      KCIF(4년) KCIF(5년) 중심성지수(3년) 즉시성지수
      0.11 0.08 0.253 0.15
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