Earticle

초록

영어

To ensure stable operation and high system reliability of high-temperature superconducting (HTS) rotating systems, researches on uniform thermal management under cryogenic conditions are actively progressing. Conventional solid conduction-based cooling structures using Stainless steel blocks transport heat solely by solid-state conduction. However, they are prone to generating localized temperature gradients due to the structural complexity of the coil, long heat transfer paths, and low thermal conductivity. Accordingly, to achieve more uniform cooling of the HTS coils, this paper proposes an STS bobbin-integrated heat pipe cooling channel for the HTS rotating system. The heat pipe utilizes the latent heat of the working fluid through a phase-change-driven evaporation-condensation cycle. Therefore, it has the advantage of much lower effective thermal resistance than the conventional solid conduction method, effectively suppressing temperature non-uniformity. To evaluate the thermal performance of the proposed cooling channel, three-dimensional numerical analysis and cryogenic similarity experiments using liquid nitrogen are conducted with a fabricated heat pipe specimen under various gravity orientations.

목차

Abstract
1. 서론
2. 설계 및 수치해석
2.1. 히트파이프가 적용된 고온초전도 레이스트랙 코일 구조
2.2. 수치해석 모델 및 경계조건
2.3. 수치해석 결과 및 분석
3. 실험 장치 및 방법
3.1. 실험 장치 구성
3.2. 작동유체 충전 및 비교 조건
3.3. 위치 의존성 검증을 위한 방향별 실험 구성
4. 실험 결과
4.1. 열부하 인가에 따른 작동유체 거동 및 안정성
4.2. 중력 방향별 열전달 성능 비교
4.3. 기존 전도 냉각 방식 대비 종합 성능 개선 효과
5. 결론
ACKNOWLEDGMENT
REFERENCES

키워드

저자

• Jungeon Park [ Changwon National University, Changwon, Korea ]
• Yubin Kim [ Changwon National University, Changwon, Korea ]
• Jangdon Kim [ Changwon National University, Changwon, Korea ]
• Jiho Son [ Changwon National University, Changwon, Korea ]
• Soeun Kim [ Changwon National University, Changwon, Korea ]
• Seokho Kim [ Changwon National University, Changwon, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 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