Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Liquid Hydrogen/Liquid Oxygen Rocket Engine Technology

액체수소/액체산소 로켓엔진 기술 검토

  • Cho, Nam-Kyung (Division of Rocket Engine Development, Korea Aerospace Research Institute) ;
  • Park, Soon-Young (Division of Rocket Engine Development, Korea Aerospace Research Institute) ;
  • Kim, Seong-Han (Division of Rocket Engine Development, Korea Aerospace Research Institute) ;
  • Han, Yeong-Min (Division of Rocket Engine Development, Korea Aerospace Research Institute)
  • Received : 2021.12.04
  • Accepted : 2022.03.07
  • Published : 2022.04.30
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Abstract

Liquid hydrogen/liquid oxygen rocket engines with highest specific impulse have been developed since the 1950s and used until now to maximize the capability of space launch vehicles. Domestic liquid hydrogen infrastructures for the production, transportation and distribution are being expanded at world-class level with the rise of hydrogen economy, which is a great opportunity for the performance enhancement for indigenous space launch vehicles. In this paper, feasibility of applying liquid hydrogen as a propellant is investigated in various aspects. The status of domestic liquid hydrogen infrastructure, the technologies required for liquid hydrogen engines, and operational aspects for safe handling of hydrogen are reviewed. In addition, test facilities for developing hydrogen engines are introduced briefly.

비추력이 가장 높은 액체수소/액체산소 엔진은 발사체의 성능을 극대화하기 위하여 1950년대 부터 개발되어 현재까지 이용되고 있다. 최근 국내에도 수소 경제의 대두에 따라 세계 수준의 액체수소 생산, 운송 등 인프라 구축이 진행되고 있고, 이는 발사체 성능을 향상시킬 수 있는 절호의 기회다. 본 논문에서는 액체수소 엔진 개발을 위한 전반적인 측면을 살펴보았다. 추진제로서의 액체수소 적용의 타당성을 고찰하고, 국내의 액체수소 인프라 현황, 액체수소 엔진 개발을 위한 소요기술, 수소를 안전하게 다루기 위한 운용적 측면을 검토하고, 액체수소 엔진 개발을 위한 시험설비를 검토하였다.

Keywords

Acknowledgement

본 논문은 한국항공우주연구원 주요사업인 '액체로켓 엔진 선행기술 연구' 과제에 일환으로 작성되었으며 지원에 감사드립니다.

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