Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Pressure Drop Changes at Engine Fuel Inlet Filter according to Water Contents Management of KSLV-II Liquid Rocket Fuel

한국형발사체 액체로켓 연료의 수분관리에 따른 엔진 연료입구필터 차압의 변화

  • Hwang, Changhwan (Engine Test and Evaluation Team, Korea Aerospace Research Institute) ;
  • Kim, Inho (GnL Inc.) ;
  • Park, Jaeyoung (Engine Test and Evaluation Team, Korea Aerospace Research Institute) ;
  • Kim, Seonglyong (Engine Test and Evaluation Team, Korea Aerospace Research Institute) ;
  • Yoo, Byungil (Engine Test and Evaluation Team, Korea Aerospace Research Institute) ;
  • Cho, Namkyung (Engine Test and Evaluation Team, Korea Aerospace Research Institute) ;
  • Han, Yeoungmin (Engine Test and Evaluation Team, Korea Aerospace Research Institute)
  • Received : 2020.09.03
  • Accepted : 2020.10.16
  • Published : 2020.12.31
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Abstract

75 tonf liquid rocket engine combustion test was performed at Naro space center Engine Combustion Test Facility for KSLV-II. A gradual pressure drop was observed during off-design combustion test turbopump inlet condition using cooled kerosene at 271 K. It was found that the water content inside kerosene could cause pressure drop at 40 ㎛ grade filter through the water contests analysis of kerosene, kerosene cooling test and dehydration of kerosene.

한국형발사체 액체로켓엔진의 개발을 위해 나로우주센터에 구축/개발된 엔진 연소 시험설비에서 75톤급 액체 로켓엔진의 연소시험을 수행하였다. 연료온도 271 K 의 탈설계점 연소시험 중 터보펌프 연료입구압력 저하가 발생하여 시험을 중지하였다. 연료의 수분함유량분석, 연료 런탱크 냉각설비를 이용한 냉각시험, 탈수시험을 수행한 결과 해당 현상이 발생한 원인이 연료 내 수분이었다고 결론을 내렸다. 향후 본 논문의 연구에서 도출된 결과를 적용하여 케로신 연료의 수분관리를 하여 액체 로켓엔진 개발시험을 수행할 예정이다.

Keywords

References

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