Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Rheological Characteristics of Kerosene Gel Fuel with SiO2 Gellant Derivatives

SiO2 계열 젤화제에 따른 케로신 젤 연료의 유변학적 특성 연구

  • 김재우 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 전두성 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 강태곤 (한국항공대학교 항공우주 및 기계공학부) ;
  • 장석필 (한국항공대학교 항공우주 및 기계공학부) ;
  • 구자예 (한국항공대학교 항공우주 및 기계공학부) ;
  • 문희장 (한국항공대학교 항공우주 및 기계공학부)
  • Received : 2012.10.02
  • Accepted : 2012.11.19
  • Published : 2012.12.01
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Abstract

Present work deals three families of $SiO_2$ gelling agents which have been used to produce gel fuel based on Kerosene. Jet A-1 is chosen as fuel where power-law rheological model is used to confirm whether or not the gelification is achieved depending on the %wt of gellant. It was confirmed that the produced jelly-like substance have shear-thinning effect, and that its apparent viscosity increases as $SiO_2$ concentration increases. Compared to other gellants, gel with Aerosil(R) R972 fits most to the power-law model, while gels with Silica 230 and Silica 530 deviate from the power-law model. The rheological characteristics behaved differently depending on the mixing method(vortex mixing and manual mixing) when gellant concentration is increased.

본 연구에서는 $SiO_2$ 계열 젤화제로 알려진 Aerosil(R) R972, Silica 230, Silica 530을 사용하여 케로신 기반 젤 연료를 제작하였다. 케로신 계열 연료로는 Jet A-1을 사용하였으며 젤화(gelification) 여부를 확인하기 위한 전단박화(shear thinning) 현상은 멱법칙(power-law) 모델을 이용하여 검증하였고 제작된 모든 젤 연료는 전단박화 효과와 함께 $SiO_2$ 젤화제의 함유량이 증가할수록 젤의 점도가 높게 형성됨을 확인하였다. 본 연구에서 사용된 젤화제 중 Aerosil(R) R972를 첨가한 젤 연료의 점성계수가 전단률 전 영역에 걸쳐 멱법칙 모델을 따르는 것이 확인되었으며 상대적으로 Silica 230과 Silica 530을 첨가한 젤 연료는 전단률 150 [1/s] 근방 이하에서 멱법칙이 유효하지 않음을 알 수 있었다. 또한, 젤화제 함유량이 증가할수록 vortex 혼합법과 수동 혼합법 간의 유변학적 특성이 크게 차이 나는 것이 관찰되었다.

Keywords

References

  1. Hermans, P.H., Gels, in Colloid Science II, Kruyt, H.R. (Ed.), Elsevier Pub. Co., Amsterdam, 1949, pp.483-494
  2. Michele Negri and Helmut K. Ciezki, "Atomization of non-Newtonian fluids with an impinging jet injector: influence of viscoelasticity on hindering droplets formation," 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2010, AIAA-2010-6821
  3. Arza Haddad, Benveniste Natan, Rimon Arieli., "Performance Assessments of a Boron Containing Gel Fuel Ramjet," 47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition, 2009, AIAA-2009-1421
  4. T. D. Kubal, R. Arnold, T. L. Pourpoint, O. H. Campanella, and W. E. Anderson, "Rheological Characterization of Hydroxypropylcellulose/ Monomethylhydrazine and Silica/Red Fuming Nitric Acid Gels," 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2010, AIAA-2010-7140
  5. R. Arnold, P. H. S. Santos, M. deRidder, O. H. Campanella, W. E. Anderson., "Comparison of Monomethylhydrazine/Hydroxypropylcellulose and Hydrocarbon/Silica G딘," 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2010, AIAA-2010-0422
  6. Y. Solomon1, Sarah Jo DeFini, Timothe L. Pourpoint, W. E. Anderson, "Gelled MMH Hypergolic Droplet Investigation," 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011, AIAA-2011-5705
  7. Jacob D. Dennis, Timothee L Pourpoint and Steven F. Son. "Ignition of Gelled Monomethylhydrazine and Red Fuming Nitric Acid in an Impinging Jet Apparatus," 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011, AIAA-2011-5706
  8. Jennifer A. Mallory, Sarah Jo DeFini, Paul E. Sojka, "Formulation of Gelled Propellant Simulants," 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2010, AIAA-2010-7142
  9. 오정수, 박지훈, 장석필, 문희장, "U-자형 덕트에서의 $Al_{2}O_{3}$ 나노 입자를 포함한 모사 Gel 추진제의 유동 특성 수치해석," 한국추진공학회 2010년도 춘계학술대회 논문집, 2010, pp.377-382
  10. 오정수, 전두성, 최상태, 김덕윤, 최양호, 이정혁, 문희장, "인젝터 형상 변화에 따른 Gel 추진제의 유동 특성 연구," 한국추진공학회 2010년도 추계학술대회 논문집, 2010, pp.300-303
  11. Yoon, C. Heister, S. Xia, G. Merkle, C. "Numerical Simulations of Gel Propellant Flow through Orifice," AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2009, AIAA-2009-5045
  12. Changjin Yoon., Stephen D. Heister., Paul E. Sojka., Christopher C. Watson., Guoping Xia, and Charles L. Merkle, "Injector Flow Characteristics for Gel Propellants," 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011, AIAA-2011-5707
  13. Rahimi, S. Natan, B. "Numerical Solution of the Flow of Power-Law Gel Propellants in Converging Injectors," Propellants, Explosives, Pyrotechnics, Vol. 25, Issue 4, 2000, pp.203-212 https://doi.org/10.1002/1521-4087(200009)25:4<203::AID-PREP203>3.0.CO;2-E
  14. 황태진, 이인철, 구자예, "젤 모사 추진제 삼중 충돌 분사 제트의 거시적 분열 특성 연구," 한국액체미립화학회지, 제15권, 제3호, 2010, pp.109-114
  15. Anat Desyatkov, Klaus Madlener, Helmut K. Ciezki, Benveniste Natan, "Experimental Investigation of Gelled Fuel with High Vapor Pressure Species and Metal Additives," 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2008, AIAA-2008-4873
  16. Jonathan D. McCabe. Dr. Millicent A. Coil. "A Graphical Spray Analysis Method for Gel Spray Characterization," 46th AIAA/ ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2010, AIAA-2010-6823
  17. Kuznetsov, A. Solomon, Y. and Natan, B. "Development of a Lab-Scale Gel Fuel Ramjet Combustor," 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2010, AIAA-2010-7124

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