Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Step-by-step Tests for Continuous Thrust Control Hot-firing Test

연속 추력제어 연소시험을 위한 단계별 시험들

  • Cheolwoong Kang (School of Mechanical Engineering, Chungbuk National University) ;
  • Shinwoo Lee (School of Mechanical Engineering, Chungbuk National University) ;
  • Sunwoo Han (School of Mechanical Engineering, Chungbuk National University) ;
  • Kangyeong Lee (School of Mechanical Engineering, Chungbuk National University) ;
  • Hadong Jung (School of Mechanical Engineering, Chungbuk National University) ;
  • Dongwoo Choi (School of Mechanical Engineering, Chungbuk National University) ;
  • Kyubok Ahn (School of Mechanical Engineering, Chungbuk National University)
  • Received : 2022.11.09
  • Accepted : 2022.12.15
  • Published : 2023.02.28
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Abstract

Results of dry-run tests, cold-flow tests, and hot-firing tests performed to throttle a methane engine uni-element thrust chamber are covered in the paper. After installing flow control valves on the oxidizer and fuel supply lines of the methane engine combustion test facility, a number of dry-run tests were repeated so that the valves could reach set strokes quickly and stably. Then, cold-flow tests using liquid nitrogen and gaseous nitrogen were conducted to confirm the stable supply of the simulated propellants according to the valve control. Finally, using liquid oxygen and gaseous methane, hot-firing tests for fixed and continuous thrust control of 50% to 10% of the nominal thrust were successfully performed.

본 논문에서는 메탄엔진 단일분사기급 연소기의 추력제어를 위해 수행된 드라이런 테스트, 수류시험, 그리고 연소시험 결과를 다루었다. 메탄엔진 연소시험설비의 산화제 및 연료 공급 라인에 유량제어 밸브를 설치한 후, 다수의 드라이런 테스트를 수행하여 밸브가 설정된 스트로크에 빠르고 안정적으로 도달할 수 있도록 하였다. 다음 액체질소와 기체질소를 사용한 수류시험을 진행하여 밸브 제어에 따른 모사 추진제의 안정적인 공급을 확인하였다. 최종적으로 액체산소와 기체메탄을 사용하여 정격 추력 대비 50%~10%의 고정 추력제어 연소시험과 연속 추력제어 연소시험을 성공적으로 수행하였다.

Keywords

Acknowledgement

본 논문은 과학기술정보통신부의 재원으로 한국연구재단(RS-2022-00156358) 및 한국항공우주연구원(KARI-FR21C00)의 지원을 받아서 수행되었으며, 이에 감사드립니다. 또한 연속 추력제어 연소시험을 가능하게 도움을 주신 한국항공우주연구원 임병직 책임연구원님, 비츠로넥스텍 채명일 부장님, 한양이엔지 지상연 부장님, 이종덕 차장님께 깊은 감사를 드립니다.

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