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

  • 제34권5호
  • /
  • Pages.526-534
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  • 2023
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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액체질소의 연속 누출 실험

Experiments of Continuous Release of Liquid Nitrogen

  • 한용식 (한국기계연구원 신에너지플랜트연구실) ;
  • 김명배 (한국기계연구원 신에너지플랜트연구실) ;
  • 르-두이 응옌 (한국기계연구원 신에너지플랜트연구실) ;
  • 김민창 (한국기계연구원 신에너지플랜트연구실) ;
  • 김창현 (한국기계연구원 신에너지플랜트연구실) ;
  • 김태훈 (한국기계연구원 신에너지플랜트연구실) ;
  • 도규형 (한국기계연구원 신에너지플랜트연구실) ;
  • 최병일 (한국기계연구원 신에너지플랜트연구실)
  • YONG-SHIK HAN (Department of Energy Plant Technology, Korea Institute of Machinery & Materials) ;
  • MYUNGBAE KIM (Department of Energy Plant Technology, Korea Institute of Machinery & Materials) ;
  • LE-DUY NGUYEN (Department of Energy Plant Technology, Korea Institute of Machinery & Materials) ;
  • MINCHANG KIM (Department of Energy Plant Technology, Korea Institute of Machinery & Materials) ;
  • CHANGHYUN KIM (Department of Energy Plant Technology, Korea Institute of Machinery & Materials) ;
  • TAE-HOON KIM (Department of Energy Plant Technology, Korea Institute of Machinery & Materials) ;
  • KYU HYUNG DO (Department of Energy Plant Technology, Korea Institute of Machinery & Materials) ;
  • BYUNG-IL CHOI (Department of Energy Plant Technology, Korea Institute of Machinery & Materials)
  • 투고 : 2023.10.05
  • 심사 : 2023.10.25
  • 발행 : 2023.10.30
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초록

To evaluate the risk of leakage when using liquid hydrogen, a leakage test was conducted using liquid nitrogen in an outdoor environment rather than a laboratory environment. To assume a real-scale continuous leak, liquid nitrogen was allowed to leak for 5 minutes through a pipe with a diameter of 25.4 mm at a design spill rate of 60 L/min. The measurement system consisted of devices for climate conditions, LN2 spread and vapor clouds. The main experimental results are the liquid pool radius and the concentration of vapor cloud, and the radius of the liquid pool was compared with the numerical analysis results.

키워드

과제정보

본 연구는 산업통상자원부 및 한국에너지기술평가원의 지원을 받은 연구 프로그램(Grant number: 20215810100020)에 의하여 수행되었습니다.

참고문헌

  1. American Petroleum Institute (API), "Overview of API RP 581: risk based inspection", API, 2016.
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  3. J. Hall, "Ignited releases of liquid hydrogen", Health and Safety Laboratory, 2014. Retrieved from https://www.hse.gov.uk/Research/rrpdf/rr987.pdf.
  4. J. Aaneby, T. Gjesdal, and O. A. Voie, "Large scale leakage of liquid hydrogen (LH2) - tests related to bunkering and maritime use of liquid hydrogen", Norwegian Defence Research Establishment (FFI), 2021. Retrieved from https://www.ffi.no/en/publications-archive/large-scale-leakage-of-liquidhydrogen-lh2-tests-related-to-bunkering-and-maritimeuse-of-liquid-hydrogen.
  5. D. M. Webber, "A model for pool spreading and vaporization and its implementation in the computer code GASP", Health & Safety Executive (HSE), 1990. Retrieved from https://www.esrtechnology.com/images/srm/Webber_1987.pdf.
  6. DNV, "Process Hazard Analysis Software Tool (PHAST) 8.23", DNV, 2020.