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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Study on Hydrogen Gas Pre-cooling Temperature and Heat Exchanger Area of Pre-cooling System for Production of Liquid Hydrogen

액체 수소 생산을 위한 예냉 시스템의 수소 가스 예냉 온도 및 열 교환기 면적에 관한 연구

  • MIN GWAN BAE (R&D Center, Daeha Corporation) ;
  • 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) ;
  • SEUNG BIN WOO (R&D Center, Daeha Corporation) ;
  • KI HEO (R&D Center, Daeha Corporation) ;
  • YOUNG MIN SEO (Hydrogen Electric Research Team, Electric Mobility Research Division, Korea Electrotechnology Research Institute)
  • 배민관 ((주)대하 R&D센터) ;
  • 하동우 (한국전기연구원 전기모빌리티연구단 수소전기연구팀) ;
  • 노현우 (한국전기연구원 전기모빌리티연구단 수소전기연구팀) ;
  • 우승빈 ((주)대하 R&D센터) ;
  • 허기 ((주)대하 R&D센터) ;
  • 서영민 (한국전기연구원 전기모빌리티연구단 수소전기연구팀)
  • Received : 2024.04.05
  • Accepted : 2024.05.28
  • Published : 2024.06.30
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Abstract

In this study, a theoretical study was conducted on the pre-cooling temperature of hydrogen gas and the heat exchanger area in a small-scale liquefied hydrogen system. The small-scale liquefaction system was built and liquid hydrogen production experiments were performed. In this process, the temperature of precooled hydrogen gas was measure to be about 120 K, and then the possibility of a cause was analyzed through pressure analysis of hydrogen gas and container, and analysis of the amount of liquid hydrogen produced. It was found that some reasonable results were obtained from the theoretical approaches. Based on this theoretical approach, we aim to improve the production of liquid hydrogen by optimizing the heat exchange area according to flow rate.

Keywords

Acknowledgement

본연구는중소벤처기업부의재원으로 중소기업기술정보진흥원의 지원을 받아 수행된 연구임(RS-2022-00165233, 액체수소 부품 개발을 위한 액체수소 압축 장치 개발)

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