Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Study on Validity of Pre-cooling System for Hydrogen Gas Using Cryocooler Part I: Experimental Investigation and Theoretical Analysis

극저온 냉동기를 활용한 기체수소 예냉 시스템의 검증에 관한 연구 Part I: 실험적 연구 및 이론적 분석

  • DONG WOO HA (Hydrogen Electric Research Team, Electric Mobility Research Division, Korea Electrotechnology Research Institute) ;
  • HYUN WOO NOH (Hydrogen Electric Research Team, Electric Mobility Research Division, Korea Electrotechnology Research Institute) ;
  • YOUNG MIN SEO (Hydrogen Electric Research Team, Electric Mobility Research Division, Korea Electrotechnology Research Institute) ;
  • TAE HYUNG KOO (Hydrogen Electric Research Team, Electric Mobility Research Division, Korea Electrotechnology Research Institute) ;
  • ROCK KIL KO (Hydrogen Electric Research Team, Electric Mobility Research Division, Korea Electrotechnology Research Institute)
  • 하동우 (한국전기연구원 전기모빌리티연구단 수소전기연구팀) ;
  • 노현우 (한국전기연구원 전기모빌리티연구단 수소전기연구팀) ;
  • 서영민 (한국전기연구원 전기모빌리티연구단 수소전기연구팀) ;
  • 구태형 (한국전기연구원 전기모빌리티연구단 수소전기연구팀) ;
  • 고락길 (한국전기연구원 전기모빌리티연구단 수소전기연구팀)
  • Received : 2023.08.04
  • Accepted : 2023.08.21
  • Published : 2023.08.30
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Abstract

In this study, the experimental investigation and theoretical analysis were conducted to verify the cooling capacity of the cryocooler used for pre-cooling of hydrogen gas. The effect of the flow rate on a copper pipe attached to the bottom of the cryocooler, which has a coil shape in a hydrogen line, was investigated. Temperature sensors were strategically placed at various positions on the cryocooler to analyze the temperature variations with respect to the flow rate. In this study, the thermal properties of hydrogen for the pressure and temperature were utilized using REFPROP to analyze the cooling capacity of the cryocooler. Based on the experimental results derived from this study, the cooling capacity of the cryocooler for pre-cooling hydrogen gas was considered by calculating the cooling temperature according to the flow rate through theoretical analysis.

Keywords

Acknowledgement

이 논문은 2023년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원을 받아 수행된 연구임(23A02135, 액화수소 저장탱크를 적용한 대용량 수소충전소 전환기술 및 실증). 이 연구는 2023년도 정부(과학기술정보통신부)의 재원으로 국가과학기술연구회의 지원을 받아 수행된 한국전기연구원 기본 사업임(No. 23A01043).

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