Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Korean Reusable Launch Vehicle Development Strategy Using SpaceX's Strategy

SpaceX의 전략을 활용한 한국형 재사용 발사체 개발 전략

  • Lee, Keum-Oh (Future Launcher R&D Program Office, Korea Aerospace Research Institute) ;
  • Lee, Junseong (Future Launcher R&D Program Office, Korea Aerospace Research Institute) ;
  • Park, Soon-Young (Korea Space Launcher Vehicle-II Program Office, Korea Aerospace Research Institute) ;
  • Roh, Woong-Rae (Korea Space Launcher Vehicle-II Program Office, Korea Aerospace Research Institute) ;
  • Im, Sung-Hyuck (Future Launcher R&D Program Office, Korea Aerospace Research Institute) ;
  • Nam, Gi-Won (Future Strategy Department, Korea Aerospace Research Institute) ;
  • Seo, Daeban (Future Launcher R&D Program Office, Korea Aerospace Research Institute)
  • Received : 2020.12.06
  • Accepted : 2021.05.12
  • Published : 2021.06.30
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Abstract

SpaceX shows various strategies such as constructing various payload portfolio through the reuse of Falcon 9 and Falcon Heavy, constructing the launch vehicles using one type of engine, the transition from kerosene engine to methane engine, and the use of 3D printing. In this study, launch vehicle proposals that can cover a variety of payloads and trajectories from KOMPSAT to GEO-KOMPSAT were constructed, and ten launch vehicles using kerosene gas generator cycle engine, kerosene staged-combustion cycle engine, and methane staged-combustion cycle engine were reviewed. Of the ten launch vehicles, the reusable launch vehicle using a 35-ton methane engine was rated as the best in terms of development potential.

SpaceX는 Falcon 9과 Falcon Heavy의 재사용을 통해 다양한 탑재중량 포트폴리오를 구성하고, 한 종류의 엔진을 사용하여 발사체를 구성하며, 케로신 엔진에서 메탄 엔진으로의 전환, 3D 프린팅 사용 등 다양한 전략을 보여주고 있다. 본 연구에서는 아리랑 위성에서 천리안 위성까지 다양한 탑재중량 및 궤도를 감당할 수 있는 발사체 안을 구성하였으며, 케로신 가스발생기 사이클 엔진, 케로신다단연소 사이클 엔진, 메탄 다단연소 사이클 엔진을 사용한 10가지 발사체 안에 대해서 검토하였다. 10가지 안 중 35톤급 메탄 엔진을 사용한 재사용 발사체가 개발 가능성 측면에서 좋은 안으로 평가되었다.

Keywords

Acknowledgement

본 논문은 한국항공우주연구원의 미래기술 전략수립 워킹그룹의 활동의 결과에 소형발사체 선행기술 개발 과제에서 검토 중인 시스템 통합 설계 방식을 적용하여 수행되었습니다.

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