Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Effects of Impellers and Floating Ring Seals on Performance of Centrifugal Pumps

임펠러 및 플로팅 링 실이 원심 펌프의 성능에 미치는 영향

  • 김대진 (한국항공우주연구원 터보펌프팀) ;
  • 최창호 (한국항공우주연구원 터보펌프팀) ;
  • 홍순삼 (한국항공우주연구원 터보펌프팀) ;
  • 김진한 (한국항공우주연구원 터보펌프팀)
  • Received : 2011.04.19
  • Accepted : 2011.06.24
  • Published : 2011.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

The effects of an impeller and floating ring seals on the performance of centrifugal pumps are investigated on the basis of their test results using water. The pumps are single-staged centrifugal pumps developed for 30-ton- and 75-ton-class liquid rocket engines, and are components of a turbopump that supplies propellants (liquid oxidizer and kerosene) to the combustion chamber. The exit width of the impellers and the numbers and exit angles of the impeller blades are found to have influences on the pump heads. In addition, the pumps have different efficiencies according to the gaps between the floating ring seals and the impellers, whereas the pump size seems to have less effect on the efficiency.

임펠러 및 플로팅 링 실의 형상이 원심 펌프의 성능에 미치는 영향을 수류 시험 결과를 토대로 연구하였다. 연구 대상이 된 펌프는 30 톤급 및 75 톤급 액체로켓엔진용으로 개발된 단단 원심형 펌프로 연소실에 추진제(액체산소, 케로신)를 공급하는 터보펌프의 일부이다. 펌프의 양정은 임펠러 출구 폭 및 날개 개수, 날개의 출구 각도의 영향을 받는 것으로 나타났다. 또한 개발된 펌프는 플로팅 링 실의 간극에 따라 그 효율에 차이가 있었으며, 크기 증가에 따른 효율 증가 효과는 크게 나타나지 않았다.

Keywords

References

  1. Huzel, D. K. and Huang, D. H., 1992, Modern Engineering for Design of Liquid-Propellant Rocket Engines, AIAA Press, Washington D. C.
  2. Kim, J., 2008, "Status of the Development of Turbopumps in Korea," Journal of the Korean Society of Propulsion Engineers, Vol. 12, No. 5, pp.73-78.
  3. Hong, S. S., Kim, D. J., Kim, J. S. and Kim, J., 2009, "Real-Propellant Test of a Turbopump of for a 30-Ton Thrust Level of Liquid Rocket Engine," Journal of the Korean Society of Propulsion Engineers, Vol. 13, No. 3, pp.20-26.
  4. Kim, D. J., Choi, C. H., Hong, S. S., Kwak, H. D. and Kim, J., 2011, "Water Tests of Fuel Pump for 75-ton Class Liquid Rocket Engine," Journal of Fluid Machinery, Vol. 14, No. 1, pp.61-65. https://doi.org/10.5293/KFMA.2011.14.1.061
  5. Anon., 1973, "Liquid Rocket Engine Centrifugal Flow Turbopumps," NASA Monograph SP-8109.
  6. Hong, S., Lim, H., Kim, D., Cha, B., Kang, J., Lim, B. and Kim, J., 2004, "Performance Tests and Evaluations for a Turbopump," Journal of Fluid Machinery, Vol. 7, No. 3, pp.84-87. https://doi.org/10.5293/KFMA.2004.7.3.084
  7. Kim, D. J., Hong, S. S., Kim, J. S. and Kim, J., 2009, "Water Tests of Pumps for Real-Propellant Tests of Turbopump," Aerospace Engineering and Technology, Vol. 8, No. 1, pp.26-31.
  8. Sutton, G. P. and Biblarz, O., 1992, Rocket Propulsion Elements, John Wiley & Sons, Hoboken, New Jersey.
  9. Kim, D. J., Hong, S. S., Choi, C. H. and Kim, J., 2006, "The Hydraulic Tests of LOX Pumps for a Liquid Rocket Engine," Proceedings of the fourth national congress on fluids engineering, Vol. 1,pp.523-526.
  10. Kim, D. J., Hong, S. S., Choi, C. H. and Kim, J., 2005, "Performance Tests of Fuel Pump for Liquid Rocket Engine," Aerospace Engineering and Technology, Vol. 4, No. 1, pp.7-13.