Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Macroscopic Analysis on Supercritical Transition of Liquid Hydrocarbon Fuel

액체탄화수소의 초임계 천이과정에 대한 거시적 특성 분석

  • Shin, Bongchul (Department of Mechanical and Aerospace Engineering, Graduate School, Korea Aerospace University) ;
  • Kim, Dohun (School of Mechanical and Aerospace Engineering, Korea Aerospace University) ;
  • Son, Min (Department of Mechanical and Aerospace Engineering, Graduate School, Korea Aerospace University) ;
  • Lee, Keunwoong (Department of Mechanical and Aerospace Engineering, Graduate School, Korea Aerospace University) ;
  • Song, Wooseok (Department of Mechanical and Aerospace Engineering, Graduate School, Korea Aerospace University) ;
  • Koo, Jaye (School of Mechanical and Aerospace Engineering, Korea Aerospace University) ;
  • Kwon, Oh Chae (School of Mechanical Engineering, Sungkyunkwan University)
  • Received : 2016.03.29
  • Accepted : 2016.07.09
  • Published : 2016.08.01
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Abstract

In order to analyze supercritical transition of liquid hydrocarbon fuel which used propulsion engine, visualization of phase changing using Methylcyclohexane (MCH) was performed. Also, measurements of temperature and pressure were conducted to obtain saturation lines of MCH and Decane. delayed increase of the pressure existed near the critical point due to dramatical increase of specific heats and the critical opalescence was only observed from the end point of delaying to the critical point. Beyond the critical point, the boundary between phases disappeared and the strong density gradient was observed. As the comparison between experimental and numerical saturation lines, the numerical estimation for mixture had relatively little difference while the results of pure components had almost coincidence.

추진기관의 주요 연료로 사용되는 액체 탄화수소 연료의 초임계 천이특성을 분석하기 위해서 Methylcyclohexane (MCH)의 상변화 가시화 및 MCH와 Decane의 포화곡선 측정실험을 수행하였다. 압력 정체구간은 임계점 부근에서 급격한 비열의 상승으로 존재하며, 정체구간이 종료되는 시점부터 임계점까지 임계단백광이 관측되었다. 또한, 초임계로 완전히 천이되면서 상의 경계가 사라지고 강한 밀도 구배를 관측할 수 있었다. 실험 포화온도 곡선과 수치적 데이터를 비교한 결과 단일 탄화수소계열 연료는 실험과 수치데이터가 거의 일치하는 경향을 보였으나, 혼합탄화수소계열연료의 임계점 예측에서는 다소 차이를 보였다.

Keywords

References

  1. Zhong, F.Q., Fan, X.J., Wang, J., Yu, G. and Li, J.G., "Characteristics of Compressible Flow of Supercritical Kerosene," Acta Mechanica Sinica, Vol. 28, No. 1, pp. 8-13, 2012. https://doi.org/10.1007/s10409-012-0006-x
  2. Fan, X., Yu, G., Li, J., Zhang, Z. and Sung, C.J., "Investigation of Vaporized Kerosene Injection in a Supersonic Model Combustor," Journal of Propulsion and Power, Vol. 22, No. 1, pp. 103-110, 2006. https://doi.org/10.2514/1.15427
  3. Branam, R. and Mayer, W., "Characterizati on of Cryogenic Injection at Supercritical Pressure," Journal of Propulsion and Power, Vol. 19, No. 3, pp. 342-355, 2003. https://doi.org/10.2514/2.6138
  4. Kim, D.H., Lee, K.W., Son, M. and Koo, J.Y., "Visualizations of Gas-centered Swirl Sprays in Sub to Super Critical Conditions," Journal of the Korean Society of Propulsion Engineers, Vol. 18, No. 3, pp. 26-33, 2014. https://doi.org/10.6108/KSPE.2014.18.3.026
  5. Kang, J.S., Hu, J.Y. and Sung, H.K., "Analysis on Flame Structure of Surrogate Kerosene/GOx and Numerical Simulation of Combustion in a Coaxial Shear Injector under Supercritical Conditions," The Korean Society of Propulsion Engineers Spring Conference, Seoul, Korea, pp. 330-335, May 2014.
  6. Kim, T.H., Kim, Y.M. and Kim, S.K., "Modeling for gaseous methane/liquid oxygen combustion processes at supercritical pressure," Korean Society of Propulsion Engineers Fall Conference, Jeju, Korea, pp. 85-88, Nov. 2010.
  7. Salgues, D., Mouis, G., Lee, S.Y., Kalitan, D., Pal, S. and Santoro, R., "Shear and Swirl Coaxial Injector Studies of LOX/GCH4 Rocket combustion Using Non-Intrusive Laser Diagnostics," 44th AIAA Aerospace Sciences Meeting and Exhibit, N.V., U.S.A., AIAA 2006-757, Jan. 2006.
  8. Mayer, W., Schik, A., Schweitzer, C. and Schaffler, M., "Injection and Mixing Processes in High Pressure LOX/GH2 Rocket Combustors," 32nd Joint Propulsion Conference and Exhibit, F.L., U.S.A., AIAA 1996-2620, July 1996.
  9. Smith, J., Klimenko, D., ClauB, W. and Mayer, W., "Supercritical LOX/Hydrogen Rocket Combustion Investigations Using Optical Diagnostics," 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, I.N., U.S.A., AIAA 2002-4033, July 2002.
  10. Hitch, B. and KarPuk, M., "Experimental Investigation of Heat Transfer and Flow Instability in Supercritical Fuels," 33rd Joint Propulsion Conference and Exhibit, Seattle, W.A., U.S.A., AIAA 1997-3043, July 1997.
  11. Matsuyama, S., Shinjo, J, Ogawa, S. and Mizobuchi. Y, "Large Eddy Simulation of High-Frequency Combustion Instability of Supercritical LOX/ $GH_2$ Flame," 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, T.N., U.S.A., AIAA 2010-6567, July 2010.
  12. Srinivasan, S., Ranjan, R. and Meonon, S., "Flame Dynamics during Combustion Instability in a high-Pressure, Shear-Coaxial Injector Combustor," Flow, Turbulence and Combustion, Vol. 94, No. 1, pp. 237-262, 2015. https://doi.org/10.1007/s10494-014-9569-x
  13. Oag, R.M., King, P.J., Mellor, C.J., George, M.W., Ke, J., Poliakoff, M., Popov, V.K. and Bagratashvili, V.N., "Determining Phase Boundaries and Vapour/Liquid Critical Points in Supercritical Fluids a Multi-Technique Approach," Journal of Supercritical Fluids, Vol. 30, No. 3, pp. 259-272, 2004. https://doi.org/10.1016/j.supflu.2003.09.021
  14. Huber, M.L. Nist Thermophysical Properties of Hydrocarbon Mixtures Database (SUPERTRAPP) Version 3.2 Users' Guide, NIST, 2007.
  15. Wang, N., Zhou, J., Pan, Y. and Wang, H., "Experimental Investigation on Flow Patterns of RP-3 Kerosene under Sub-Critical and Supercritical Pressure," Acta Astronautica, Vol. 94, No. 2, pp. 834-842, 2014. https://doi.org/10.1016/j.actaastro.2013.10.008
  16. Abernethy, R.B., Benedict, R,P. and Dowdell, R.B., "ASME Measurement Uncertainty," Journal of Fluids Engineering, Vol. 107, pp. 161-163, 1985. https://doi.org/10.1115/1.3242450