Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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A Mixing Head Integrated, Multi-Ignition Device for Liquid Methane Engine

액체메탄엔진용 믹싱헤드 일체형 다중점화장치

  • Lim, Byoungjik (Small Launcher R&D Office, Korea Aerospace Research Institute) ;
  • Lee, Junseong (Small Launcher R&D Office, Korea Aerospace Research Institute) ;
  • Lee, Keejoo (Small Launcher R&D Office, Korea Aerospace Research Institute) ;
  • Park, Jaesung (Small Launcher R&D Office, Korea Aerospace Research Institute)
  • Received : 2022.05.04
  • Accepted : 2022.06.13
  • Published : 2022.06.30
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Abstract

We are developing a compact ignition device that can provide a multi-ignition capability for an upper stage methane engine of a two staged small satellite launch vehicle. Firstly, the multi-ignition device is designed and built as an integral part of an additively manufactured mixing head. Secondly, the ignition device requires no separate high-pressure vessels to store ignition propellants as they are branched out from the main feed lines for the mixing head. We performed experiments at various levels, including igniter autonomous tests, thrust chamber ignition and combustion tests on the new compact ignition device which is integrated in the thrust chamber of one-tonf class liquid oxygen/liquid methane engine, and confirmed stable ignition performance.

2단형 소형위성발사체 상단 메탄엔진에 다중점화가 가능한 간결한 점화기를 개발하고 있다. 첫 번째로 적층제조 기술을 활용하여 믹싱헤드와 일체형으로 다중점화장치를 설계 및 제작하였다. 두 번째로 연소기 헤드에 공급되는 점화 추진제를 주-추진제 배관에서 분기하여 공급함으로써 점화가스 저장을 위한 별도의 고압 용기가 필요없다. 1톤급 액체산소/액체메탄 엔진 연소기 헤드에 일체형으로 고안된 신규 점화기에 대해서 점화기 단독시험, 연소기 점화시험 및 연소기 성능시험 등의 다양한 시험을 수행하였고, 안정적인 점화 성능을 확인하였다.

Keywords

Acknowledgement

본 연구는 한국항공우주연구원 2단형 소형발사체선행기술개발사업(FR22B00)과 한국연구재단(과학기술정보통신부) 스페이스챌린지사업(2021M1A3B807777112) 지원을 받아 수행되었습니다.

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