Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Performance Test of a 75-tonf Rocket Engine Turbopump

75톤급 액체로켓엔진용 터보펌프 실매질 성능시험

  • Jeong, Eunhwan (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Kwak, Hyun-Duck (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Kim, Dae-Jin (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Kim, Jin-Sun (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Noh, Jun-Gu (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Park, Min-Ju (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Park, Pyun-Goo (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Bae, Jun-Hwan (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Shin, Ju-Hyun (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Wang, Seong-Won (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Yoon, Suck-Hwan (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Lee, Hanggi (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Jeon, Seong-Min (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Choi, Chang-Ho (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Hong, Soon-Sam (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Kim, Seong-Lyong (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Kim, Seung-Han (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Woo, Seong-Phil (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Han, Yeong-Min (Rocket Engine Development Office, Korea Aerospace Research Institute) ;
  • Kim, Jinhan (Rocket Engine Development Office, Korea Aerospace Research Institute)
  • Received : 2015.12.02
  • Accepted : 2016.03.07
  • Published : 2016.04.01
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Abstract

Performance tests of a 75-tonf liquid rocket engine turbopump were conducted. The performance of sub-components - two pumps and a turbine - and their power matching were measured and examined firstly near the design speed under the LN2 and kerosene environment. In the real propellant - LOX and kerosene - environment tests, design and off-design performance of turbopump were fully verified in regime of the rocket engine operation. During the off-design performance tests, turbopump running time was set longer than the engine operating time to verify the pump operability and set the pump inlet pressure close to design NPSHr to investigate pump suction capability in parallel. It has been found that developed-turbopump satisfied all of the engine required performances.

75톤급 액체로켓엔진용 터보펌프 개발 시제에 대한 조립체 성능시험이 터보펌프 실매질 시험설비에서 수행되었다. LN2와 케로신을 적용한 첫 시험에서는 터보펌프 구성품들의 조립체 상태에서의 수력/공력 성능 및 출력 매칭 점검이 설계회전수 근방에서 이루어 졌으며 LOX와 케로신을 적용한 실매질 시험에서는 터보펌프의 설계성능 및 엔진운용영역 탈설계 성능 검증이 이루어졌다. 탈설계시험의 경우, 내구성 검증을 위해 엔진의 운용시간을 초과하여 터보펌프가 운용되었으며 펌프입구압력을 설계 요구 유효흡입양정(NPSHr)에 가깝게 설정하여 흡입성능 검증을 병행하였다. 개발된 75톤급 액체로켓용 터보펌프는 성능, 운용시간의 엔진 요구규격을 만족시키는 것으로 확인되었다.

Keywords

References

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