한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제25권3호
  • /
  • Pages.62-80
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  • 2021
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  • 1226-6027(pISSN)
  • /
  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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차세대 발사체용 연료선정에 관한 연구

A Study on Fuel Selection for Next-Generation Launch Vehicles

  • Kim, Cheulwoong (Future Launcher R&D Program Office, Korea Aerospace Research Institute) ;
  • Lim, Byoungjik (Future Launcher R&D Program Office, Korea Aerospace Research Institute) ;
  • Lee, Keejoo (Future Launcher R&D Program Office, Korea Aerospace Research Institute) ;
  • Park, Jaesung (Future Launcher R&D Program Office, Korea Aerospace Research Institute)
  • 투고 : 2021.04.20
  • 심사 : 2021.05.26
  • 발행 : 2021.06.30
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초록

차세대 추진기관에 대한 요구조건과 좋은 추진제의 조건을 정리하였다. 국내외에서 주로 관심을 받고 있는 연료인 케로신, 수소, 메탄의 특성과 효용성을 상호비교하였다. 비교 결과 메탄이 신뢰성, 비용, 재사용성, 유지보수, 친환경, 안전성, 수명, 기술적 난이도, 엔진 사이클 선택, 공통격벽, 무분해 조립 납품 등에서 다른 연료보다 더 유리한 것으로 평가되었다. 그리고 성능 면에서도 케로신보다 비추력이 높아서 발사체의 효율을 증가시킬 수 있다. 메탄은 친환경, 낮은 연소온도, 긴수명, 유지보수의 편의성을 가지고 있어서 재사용과 다목적 엔진 개발에 장점이 있다.

The requirements for the next-generation propulsion system and for a good propellant have been summarized. The characteristics and effectiveness of kerosene, hydrogen, and methane, which are the fuels that are mainly attracting attention in Korea and abroad, were compared with each other. As a result of the comparison, methane was evaluated to be more advantageous than other fuels in reliability, cost, reusability, maintenance, eco-friendliness, safety, lifespan, technical difficulties, engine cycle selection, application of common bulkhead, and non-disassembly/reassembly delivery. And in terms of performance, the specific impulse of methane is higher than that of kerosene, so the efficiency of the launch vehicle can be increased. Methane's properties incluidng eco-friendliness, low-temperature combustion, long life, and maintenability make it beneficial for reuse and for the development of multi-purpose engines.

키워드

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