Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Characteristics of Sub-cooled Nitrogen Cryogenic System for Applied High-Tc Superconducting Devices

고온초전도 응용기기용 과냉질소 냉각시스템의 냉각특성

  • 강형구 (연세대 공과대 전기전자공학과) ;
  • 김형진 (홍대 과학기술연구소) ;
  • 배덕권 (연세대 공과대 전기전자공학과) ;
  • 안민철 (연세대 공과대 전기전자공학과) ;
  • 윤용수 (안산공대 공과대 전기과) ;
  • 장호명 (홍대 공대 기계시스템 디자인공학과) ;
  • 고태국 (연세대 공대 전기전자공학과)
  • Published : 2004.03.01
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Abstract

The cryogenic system for 6.6 kV/200 A inductive superconducting fault current limiter (SFCL) was developed at Yonsei university in 2003. The sub-cooled nitrogen cryogenic system could be applied to not only SFCL but also many other applied high-Tc superconducting (HTS) devices like superconducting motor, superconducting generator and superconducting magnetic energy storage (SMES). Generally, the cooling capacity of GM-cryocooler depends on the load temperature. Therefore it is necessary to perform the cooling capacity test at no load condition to calculate the exact cooling power and heat load of cryogenic system. In this research, the cooling capacity test of GM-cryocooler was executed and the heat load of developed cryogenic system was calculated. The long run operation test results of sub-cooled nitrogen cryogenic system were successful in pressure and temperature condition. Moreover, the design and fabrication method of cryogenic system were introduced and the test results were described.

Keywords

References

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