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http://dx.doi.org/10.3795/KSME-B.2013.37.3.275

Design and Experimental Verification of Uni-Injector Using Gas Methane and Lox as Propellants  

Jeon, Jun Su (Dept. of Aerospace Engineering, Chungnam Nat'l Univ.)
Min, Ji Hong (Dept. of Aerospace Engineering, Chungnam Nat'l Univ.)
Jang, Ji Hun (Dept. of Aerospace Engineering, Chungnam Nat'l Univ.)
Ko, Young Sung (Dept. of Aerospace Engineering, Chungnam Nat'l Univ.)
Kim, Sun Jin (Fire Safety Engineering, Chungnam Provincial Cheongyang College)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.3, 2013 , pp. 275-283 More about this Journal
Abstract
An injector that uses methane gas ($CH_4$) and liquid oxygen ($LO_x$) as propellants was designed to verify the combustion characteristics of an engine that uses methane, which is one of the next-generation propellants. A swirl/shear coaxial-type injector was used, and flow analysis was performed using Fluent to determine the main design parameters of the injector. A hydraulic test was performed to understand the atomization and spray pattern characteristics of the injector. Next, a combustion test was performed at the design point to understand the ignition and combustion stability. Additional combustion tests were performed according to the O/F ratio to investigate the combustion characteristics and stabilities using the characteristic exhaust velocity ($C^*$) and fluctuation of the chamber pressure. The experimental results showed that the combustion efficiency was greater than 90%, and the pressure fluctuation was lower than 2% under all conditions.
Keywords
Liquid Rocket Engine(LRE); LOx; $CH_4$; Injector; Characteristic Exhaust Velocity($C^*$);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Todd, N., Donald, J., Eric V. and Donald, R., 2006, "Practical Uses of Liquid Methane in Rocket Enine Applications," IAC-06-C4.1.01.
2 Kim, S. J., Lee, Y. S. and Ko, Y. S., 2010, "Research Trend and Histories of Rocket Engines Using Hydrogen Peroxide and Liquid Methane as Green Propellants," Journal of KSPE, Vol. 14, No. 4, pp. 46-58.   과학기술학회마을
3 Sutton, G. P. and Bilarz, O., 2001, Rocket Propulsion Elements, 7th ed., Wilet-Interscience Publication, New york, pp.348-355.
4 Bayvel, L. and Orzechowski, Z., 1993, Liquid atomization, Taylor&Francis.
5 Kang, K. T., 2000, "An Experimental Study on Atomization and Mixing Characteristics of Shear Coaxial Injector," Chungnam National University, Daejeon.
6 Jang, J. H., Min, J. H., Lee, Y. S., Ko, Y. S. and Kim, S. Y., 2011, "Design and Verification of a Injector Using Gas Methane and Lox as Propellants," KSPE Fall Conference, pp. 658-661.
7 Kim, B. Y., Lee, Y. S., Park, J. H., Ko, Y. S., Kim, S. Y. and Kim, Y. M., 2010, "Design and Spray Characteristics of Coaxial Injector Using GCH4/LOx," KSPE Fall Conference, pp. 577-580.
8 Jeon, J. S., Shin, H. C., Yang, J. J., Ko, Y. S., Kim, Y., Kim, J. H. and Chung, H. S., 2007, "An Experimental Study on Cooling Characteristics for Uni-element Injector Face According to the Swril Chamber in Fuel Injector," KSPE Spring Conference, pp. 148-151.
9 Jeon, J. S., Jang, J. H., Ko, Y. S., Kim, S. J. and Kim, Y., 2012, "Study on Desing and Combustion Characteristics for a Uni-Injector Using Gas Methane/Lox as propellants," Asian Joint Conference on Propulsion and Power, AJCPP2012-130.
10 NASA Lwewis Research Center, "CEA (Chemical Equilibrium with Application)"
11 Burkhart, H., Sippel, M., Herbertz, A. and Klevanski, J., 2004, "Kerosene vs Methane : A Propellant Tradeoff for Reusable Liquid Booster Stages," Journal of Spacecraft and Rockets, Vol. 41, No. 5, pp. 762-769.   DOI   ScienceOn
12 Judd, D. C., Buccella, S., Alkema, M., Hewitt, R. and Veith, E., 2006, "Effect of Combustion Process on Performance, Stability, and Durability of a Lox/Methane Rocket Engine," 42ed Aerospace Sciences Meeting and Exhibit, AIAA-2006-5079.