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2단계 개방 연소기 산화제 개폐밸브 개발

Development of a Two-Step Main Oxidizer Shut-off Valve

  • Hong, Moongeun (Launcher Propulsion Control Team, Korea Aerospace Research Institute)
  • 투고 : 2017.04.30
  • 심사 : 2017.07.24
  • 발행 : 2017.08.01

초록

액체로켓엔진용 연소기 산화제 개폐밸브는 단순 온 오프 개폐작동을 통해 연소기로의 산화제 공급 유무만을 제어하기 때문에, 산화제 공급 유량 조절을 통한 엔진 점화 시동 특성제어 및 최적화에 한계가 있는 반면에 2단계 개방 연소기 산화제 개폐밸브는 밸브의 부분 개방에 의해 산화제 공급 유량을 조절함으로써 엔진 점화 시동 특성을 제어할 수 있는 이점이 있다. 이에 본 논문에서는 액체로켓엔진용 2단계 개방 연소기 산화제 개폐밸브 개발을 위한 기본 설계 내용과 함께 밸브 작동성에 관한 검증시험 결과를 소개하기로 한다.

The supply of the liquid oxygen into a rocket combustor is simply controlled by the 'on' and 'off' positions of a main oxidizer shut-off valve. However, the partially opened position of a three-position valve can control and optimize the engine start transients by regulating the liquid oxygen flow rate during the start-up of the engine. In this paper, the design and performances of a three-position pneumatic poppet valve, which is intended to be employed in liquid rocket engines, have been presented.

키워드

참고문헌

  1. Lee, H. and Hong, M., "On the Valve Travel of a Main Oxidizer Shut-off Valve," 5th International Symposium on Fluid Machinery and Fluids Engineering, Jeju, Korea, Oct. 24-27, 2012.
  2. Kim, D., Kim, E., Kim, S., Park, S., Hong, M. and Lee, S. Y., "A Study on the Pneumatic Part Coatings Characteristics of a Main Oxidizer Shut-off Valve for Liquid Rocket Engines," 2013 SASE Spring Conference, Muju, Korea, May 9-10, 2013.
  3. Kim, D., Hong, M., Park, J. and Lee, S. Y., "Study for the Development of a Main Oxidizer Shut-off Valve for Liquid Rocket Engines," Journal of the Korean Society of Propulsion Engineers, Vol. 17, No. 6, 2013, pp.113-119. https://doi.org/10.6108/KSPE.2013.17.6.113
  4. Hong, M., "Improvement of a Flow Coefficient for the Recirculation Flow in a Main Oxidizer Shut-off Valve," 2016 KSPE Fall Conference, Jeongsun, Korea, Dec. 21-23, 2016.
  5. Hong, M., "On the Main Oxidizer Shut-off Valve Operated in Combustion Tests of 75-tonf Liquid Rocket Engine KRE-075-001G," KARILPC- ELN-2016-009, 2016.
  6. Dantinne, G., Servais, T., Lambert, G., and Dambaut, L., "Three-Position Pneumatic Ball Valve," 4th International Conference on Launcher Technology "Space Launcher Liquid Propulsion", Liege, Belgium, Dec. 3-6, 2002.