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Commissioning result of the KSTAR in-vessel cryo-pump

첫 페이지 보기
  • 발행기관
    한국초전도저온학회 (구 한국초전도저온공학회) 바로가기
  • 간행물
    한국초전도·저온논문지 (구 한국초전도저온공학회논문지) KCI 등재 바로가기
  • 통권
    Vol.15 No.4 (2013.12)바로가기
  • 페이지
    pp.53-58
  • 저자
    Y-B Chang, H-J Lee, Y-M Park, Y-J LEE, S-W Kwag, N-H Song, D-S Park, J-J Joo, K-M Moon, N-W Kim, H-L Yang, Y.-K. Oh
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A212573

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원문정보

초록

영어
KSTAR in-vessel cryo-pump has been installed in the vacuum vessel top and bottom side with up-down symmetry for the better plasma density control in the D-shape H-mode. The cryogenic helium lines of the in-vessel cryo-pump are located at the vertical positions from the vacuum vessel torus center 2,000 mm. The inductive electrical potential has been optimized to reduce risk of electrical breakdown during plasma disruption. In-vessel cryo-pump consists of three parts of coaxial circular shape components; cryo-panel, thermal shield and particle shield. The cryo-panel is cooled down to below 4.5 K. The cryo-panel and thermal shields were made by Inconel 625 tube for higher mechanical strength. The thermal shields and their cooling tubes were annealed in air environment to improve the thermal radiation emissivity on the surface. Surface of cryo-panel was electro-polished to minimize the thermal radiation heat load. The in-vessel cryo-pump was pre-assembled on a test bed in 180 degree segment base. The leak test was carried out after the thermal shock between room temperature to LN2 one before installing them into vacuum vessel. Two segments were welded together in the vacuum vessel and final leak test was performed after the thermal shock. Commissioning of the in-vessel cryo-pump was carried out using a temporary liquid helium supply system.

목차

Abstract
 1. INTRODUCTION
 2. IN-VESSEL CRYO-PUMP SYSTEM
  2.1. Cryo-pump
  2.2. Cryogenic system for the cryo-pump
 3. FABRICATION AND INSTALLATION OF THE ICPS
 4. COMMISSIONING RESULT
 5. CONCLUSIONS
 ACKNOWLEDGEMENT
 REFERENCES

키워드

Korea Superconducting Tokamak Advanced Research In-vessel Cryo Pump Cryo-panel Thermal shields Warm particle shields Cryogenic helium system Distribution system Temporary liquid helium supply system

저자

  • Y-B Chang [ National Fusion Research Institute, Daejeon, Korea ] Corresponding author
  • H-J Lee [ National Fusion Research Institute, Daejeon, Korea ]
  • Y-M Park [ National Fusion Research Institute, Daejeon, Korea ]
  • Y-J LEE [ National Fusion Research Institute, Daejeon, Korea ]
  • S-W Kwag [ National Fusion Research Institute, Daejeon, Korea ]
  • N-H Song [ National Fusion Research Institute, Daejeon, Korea ]
  • D-S Park [ National Fusion Research Institute, Daejeon, Korea ]
  • J-J Joo [ National Fusion Research Institute, Daejeon, Korea ]
  • K-M Moon [ National Fusion Research Institute, Daejeon, Korea ]
  • N-W Kim [ National Fusion Research Institute, Daejeon, Korea ]
  • H-L Yang [ National Fusion Research Institute, Daejeon, Korea ]
  • Y.-K. Oh [ National Fusion Research Institute, Daejeon, Korea ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국초전도저온학회 (구 한국초전도저온공학회) [The Korean Society of Superconductivity and Cryogenics (KSSC)]
  • 설립연도
    1998
  • 분야
    공학>전기공학
  • 소개
    21세기 핵심기술인 초전도공학과 저온공학분야의 기술 수준을 향상시키고, 선진 외국의 관련 학회와의 국제 교류 뿐만 아니라 이 분야에서 산.학.연의 학술활동 및 기술교류의 구심점으로의 그 역할을 성실히 수행하고자 한다.

간행물

  • 간행물명
    한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]
  • 간기
    계간
  • pISSN
    1229-3008
  • eISSN
    2287-6251
  • 수록기간
    1999~2026
  • 등재여부
    KCI 등재,SCOPUS
  • 십진분류
    KDC 427 DDC 537

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