Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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Analysis of Safety Regulation and Chemical Reactivity of Hypergolic Propellant

접촉점화성 추진제 안전기준 및 상호반응성 분석

  • Eungwoo Lee (Launch Vehicle Research Directorate, Korea Aerospace Research Institute) ;
  • Ahntae Shin (Naro Space Center, Korea Aerospace Research Institute) ;
  • Sangyeon Cho (Launch Vehicle Research Directorate, Korea Aerospace Research Institute) ;
  • Byeongmun Park (Naro Space Center, Korea Aerospace Research Institute)
  • 이응우 (한국항공우주연구원 발사체연구소) ;
  • 신안태 (한국항공우주연구원 나로우주센터) ;
  • 조상연 (한국항공우주연구원 발사체연구소) ;
  • 박병문 (한국항공우주연구원 나로우주센터)
  • Received : 2023.04.11
  • Accepted : 2023.09.13
  • Published : 2023.09.30
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Abstract

Although hydrazine is an excellent liquid propellant, caution is required during storage and handling due to its high toxicity and reactivity. Safety guidelines should be established in consideration of the chemical reactivity by unintended leakage. In this study, the status of hydrazine facilities at launch site and safety standards for storing and handling were investigated and then, the reactivity between chemicals and hydrazine was analyzed. As a result of the analysis, hydrazine has reactivity with the exception of fuel oil. This paper emphasizes the imperative nature of constructing a dedicated hydrazine storage facility. Ensuring compatibility between hydrazine and the materials used in storage containers and handling equipment is crucial to prevent undesired reactions that could compromise safety. It was intended to be used as basic data to secure the range safety when handling hydrazine.

하이드라진은 우수한 액체추진제이지만 독성과 반응성이 높아 저장 및 취급 시 주의가 요구된다. 발사장 안전을 확보하기 위해서는 화학물질의 누출로 인한 상호반응성을 고려한 안전지침을 수립하여야 한다. 본 연구에서는 해외 발사장의 하이드라진 충전시설 현황에 대해서 조사하고 저장 및 취급과 관련된 안전기준을 검토하였으며, 발사장에서 주로 취급되는 화학물질과 위험물안전관리법상 유별 혼재기준에 따라 혼합 보관이 가능한 물질을 선정하여 하이드라진과의 상호반응성을 분석하였다. 분석 결과 발사장에서 취급되는 화학물질에는 연료유를 제외하고는 상호반응성이 있는 것으로 분석되었으며 혼재가 가능한 위험물과도 상호반응성이 있는 것으로 나타났다. 그렇기 때문에 발사장에 하이드라진 전용의 저장소 구축이 필요함을 강조하며, 충전작업 중에는 저장용기와 처리 장비에 사용되는 물질과의 상호반응성을 피하기 위한 세심한 관리의 중요성을 강조한다. 이러한 분석 결과를 바탕으로 발사장에서 하이드라진 저장 보관 및 취급 시 발사장 안전을 확보하기 위한 기초자료로 활용할 예정이다.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부의 재원으로 수행된 한국형발사체 고도화사업의 연구결과이며 이에 감사드립니다.

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