Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Combustion Performance by the Shape of Slit of the Canted Slit Type Pintle Injector

기울어진 슬릿을 가지는 핀틀 분사기의 슬릿 형상에 따른 연소성능에 관한 연구

  • Yu, Isang (School of Aerospace Engineering, Chungnam National University) ;
  • Choi, Jiseon (School of Aerospace Engineering, Chungnam National University) ;
  • Kim, Taewoan (School of Aerospace Engineering, Chungnam National University) ;
  • Ko, Youngsung (School of Aerospace Engineering, Chungnam National University) ;
  • Kim, Sunhoon (School of Aerospace Engineering, Chungnam National University) ;
  • Kim, Hyungmo (Engine Parts Research Team, Korea Aerospace Research Institute)
  • Received : 2016.10.28
  • Accepted : 2016.12.10
  • Published : 2017.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, combustion tests were performed to investigate performance characteristics of a canted slit-type pintle injector engine which uses kerosene and liquid oxygen as propellants. The number of slits, slit angle and blockage factor were chosen as design variables of the pintle injector. ${\Delta}SR$ was newly defined as the difference of skip ratio caused by both sides of the tip of the canted slit. The experimental results showed that optimal combustion was performed when the blockage factor is about 1 and the difference is less than 0.26.

본 논문에서는 연소 실험을 통해 케로신/액체산소를 추진제로 사용하는 기울어진 슬릿을 가지는 핀틀 분사기 로켓엔진의 연소 성능을 살펴보았다. 슬릿 형상 관련 설계 변수는 슬릿 개수, 슬릿 각 및 차단율로 선정하였다. 그리고 기울어진 슬릿에 의한 양 끝단의 skip ratio의 차이를 ${\Delta}SR$로 새롭게 정의하였다. 실험 결과, 기울어진 슬릿을 가지는 핀틀 분사기의 슬릿 형상에서 BF를 1에 가깝게 하고, ${\Delta}SR$을 0.26 이내로 설계하면 최적의 연소성능을 발휘함을 확인하였다.

Keywords

References

  1. Dressler, G.A., "Summary of Deep Throttling Rocket Engines - A Historical Perspective," 42nd AIAA Joint Propulsion Conference, Sacramento, C.A., U.S.A., AIAA 2006-5220, Jul. 2006.
  2. Calvignac, J., "Design and Testing of a Non-Toxic 870-LBf Engine," 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Las Vegas, N.V., U.S.A., AIAA 2000-3851, Jul. 2000.
  3. Dressler, G.A. and Bauer J.M., "TRW Pintle Engine Heritage and Performance Characteristics," 36th Joint Propulsion Conference and Exhibit, Huntsville, A.L., U.S.A., AIAA 2000-3871, Jul. 2000.
  4. Yu, K.J., Son, M., Kim, D.H., Lee, K.W., Shin, B.C., Song, W.S. and Koo, J.Y., "Sprayed Pattern by a Opening Distance from Pintle Injector," 2015 KSPE Spring Conference, Jeju, Korea, May. 2015.
  5. Kim, H.M., Lee, H.S., Park, P.M. and Yang, S.S., "Spray Characteristic of Liquid-Liquid Pintle Injectors," 2014 KSPE Fall conference, Jeongseon, Korea, Dec. 2014.
  6. Kim, S.H., Kim, W.C., Kim, T.W., Ko, Y.S., Kim, S.J. and Kim H.M., "Analysis on Combustion Phenomena by Spray Pattern of Canted Slit Type Pintle Injector," 2016 KSPE Spring Conference, Jeju, Korea, May. 2016.
  7. Lee, J.H., Yu, I.S., Lee, S.M., Ko, Y.S., Kim, S.J. and Kim, H.M., "Combustion Performance of the Pintle Injector Rocket Engine with Canted Slit Shape by Total Momentum Ratio," 2015 KSPE Fall Conference, Gyeongju, Korea, Nov. 2015.
  8. Lee, J.H., Kim, W.C., Kim, M.S., Kim, S.H., Ko, Y.S. and Kim, H.M., "Combustion Performance of the Pintle Injector Rocket Engine with Canted Slit Shape by Characteristic Length," 2015 KSPE Fall Conference, Gyeong-ju, Korea, Nov. 2015.
  9. Daric, W.E., "Design and Preliminary Hot Fire and Cold Flow Testing of Pintle Injectors," Thesis of Master Degree, The Graduate School of the Pennsylvania State University, Dec. 1996.
  10. Nasser, A., Handbook of Atomization and Sprays, Springer, Toronto, Canada, 2011.