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Development of High-Pressure Subscale Thrust Chamber for Verifying Core Technology for KSLV-II Performance Enhancement

한국형발사체 성능 고도화 핵심기술 검증을 위한 고압 축소형 연소기 개발

  • Kim, Jonggyu (Combustion Chamber Team, Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Kim, Seong-Ku (Combustion Chamber Team, Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Joh, Miok (Combustion Chamber Team, Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Ryu, Chulsung (Combustion Chamber Team, Rocket Engine Development Office, Korea Aerospace Research Institute)
  • Received : 2021.06.03
  • Accepted : 2021.08.14
  • Published : 2021.08.31

Abstract

In this study, a high-pressure subsacle thrust chamber was developed to verify the core technology for KSLV-II performance enhancement. The core technologies are the design of an injector for high-pressure combustion, development of a combustion stabilization device using the additive manufacturing technique, and the design and fabrication of mixing head and regeneratively cooled combustion chamber. The core technologies, which have been verified through the development of high-pressure subscale thrust chamber, will be used to develop large engine liquid rocket engine thrust chamber in the future.

한국형발사체용 연소기 성능 고도화를 위한 핵심기술을 검증하기 위해 고압 축소형 연소기를 개발하였다. 성능 고도화를 위한 핵심기술은 고압 연소기용 분사기 설계, 적층제조기법을 적용한 연소안정화 장치 개발, 고압 축소형 연소기 헤드 및 재생냉각 연소실 설계/제작 등이다. 고압 축소형 연소기 개발을 통해 핵심기술을 검증하였고, 이 기술들은 향후 대형 액체로켓엔진 연소기 개발에 활용될 예정이다.

Keywords

References

  1. Seo, S., Han, Y.M., Kim, S.H., Seol, W.S. and Lee, S.Y., "Combustion Dynamic Behavior of Bi-Liquid Double Swirl Coaxial Injectors," AJCPP, Japan, AJCPP2005-22052, 2005.
  2. Seo, S., Lee, K.J., Han, Y.M., Kim, S.H., Kim, J.G., Moon, I.Y. and Seol, W.S., "Study on Combustion Characteristics of Unielement Thrust Chambers with Various Injectors," Journal of the Korean Society of Propulsion Engineers, Vol. 8, No. 2, pp. 85-94, 2004.
  3. Klem, M.D. and Fry, R.S., "Guidelines for Combustion Stability Specifications and Verification Procedures for Liquid Propellant Rocket Engines," Tech. rep., CPIA Publication 655, January 1997.
  4. Lourme, D.(Chapter 1), Priem, R. and Breisacher, K.(Chapter 8), "Combustion Instability in Liquid Rocket Engines," ESA WPP-062, 1993.
  5. Sutton, G.P. and Biblarz, O., Rocket Propulsion Elements, 7th ed., John Wiley & Sons Inc., New York, U.S.A., 2001.
  6. Seo, S., Lee, K.J. and Choi, H.S., "Study on Standards of Combustion Stability Assessment of Liquid Rocket Engine Combustion Devices," Journal of the Korean Society of Propulsion Engineers, Vol. 13, No. 6, pp. 34-40, 2009.
  7. Ryu, C.S. and Choi, H.S., "Development of Bulging Process for Regenerative Cooling Nozzle of Liquid Rocket Engine Thrust Chamber," Aerospace Engineering and Technology, Vol. 7, No. 2, pp. 103-109, 2008.