摘要： In this study, aluminum flame analysis was researched in order to develop a measurement method for high-energy-density metal aluminum dust cloud combustion, and the flame temperature and UV-VIS-IR emission spectra were precisely measured using a spectrometer. Because the micron-sized aluminum flame temperature was higher than 2 400 K, Flame temperature was measured by a non-contact optical technique, namely, a modified two-color method using 520 and 640 nm light, as well as by a polychromatic fitting method. These methods were applied experimentally after accurate calibration. The flame temperature was identified to be higher than 2 400 K using both methods. By analyzing the emission spectra, we could identify AlO radicals, which occur dominantly in aluminum combustion. This study paves the way for realization of a measurement technique for aluminum dust cloud combustion flames, and it will be applied in the aluminum combustors that are in development for military purposes.
Abstract：In this study, aluminum flame analysis was researched in order to develop a measurement method for high-energy-density metal aluminum dust cloud combustion, and the flame temperature and UV-VIS-IR emission spectra were precisely measured using a spectrometer. Because the micron-sized aluminum flame temperature was higher than 2 400 K, Flame temperature was measured by a non-contact optical technique, namely, a modified two-color method using 520 and 640 nm light, as well as by a polychromatic fitting method. These methods were applied experimentally after accurate calibration. The flame temperature was identified to be higher than 2 400 K using both methods. By analyzing the emission spectra, we could identify AlO radicals, which occur dominantly in aluminum combustion. This study paves the way for realization of a measurement technique for aluminum dust cloud combustion flames, and it will be applied in the aluminum combustors that are in development for military purposes.
[1] Balakrishnan K, Menon S. Combustion Science and Technology, 2010, 182: 186. [2] McNesby K L, Homan B E, Ritter J J, et al. Propellants, Explosives, Pyrotechnics, 2010, 35: 57. [3] Yang H S. Combustion Dynamics of High-Energy-Density Metallic Fuel: Modeling and Detailed Parametric Investigation on an Isolated Aluminum and Magnesium Particle Burning, Doctoral Dissertation, Yonsei University, 2010. [4] DesJardin P E, Felske J D, Carrara M D. Journal of Propulsion and Power, 2005, 21: 478. [5] Olsen S, Beckstead M. Journal of Propulsion and Power, 1996, 12: 662. [6] Kong C, Yao Q, Yu D, et al. Proceedings of the Combustion Institute, 2015, 35: 2479. [7] Ko T H, Lee S H, Yoon W S. Program & Abstracts of the Asian Joint Conference on Propulsion and Power, 2012, 166. [8] Ko T H, Lee S H, Yoon W S, et al. Fall Conference of Korean Society of Propulsion Engineers, 2013. [9] Marion M, Chauveau C, Gkalp I. Combustion Science and Technology, 1996, 116: 369. [10] Sarou-Kanian V, Rifflet J C, Millot F, et al. Combustion and Flame, 2006, 145: 220. [11] Harrison J, Brewster Q. Combustion Science and Technology, 2009, 181: 18. [12] Nguyen K, Branch M C. Combustion Science and Technology, 1987, 5: 277. [13] Beckstead M W. Combustion, Explosion and Shock Waves, 2005, 41: 533. [14] Huang Ying, et al. Combustion and Flame, 2009, 156: 5. [15] Lynch, Patrick, Herman K, et al. Proceedings of the Combustion Institute, 2009, 32: 1887. [16] Goroshin S, Mamen J, Higgins A, et al. Proceedings of the Combustion Institute, 2007, 31: 2011. [17] Peuker, Jennifer Mott, et al. Propellants, Explosives, Pyrotechnics, 2013, 38: 577. [18] Parr T P, Johnson C, Hanson-Parr D, et al. 39th JANNAF Combustion Subcommittee Meeting, 2003. [19] Bucher P, Yetter R A, Dryer F L, et al. Symposium (International) on Combustion, 1998, 27: 2421. [20] Dreizin, Edward L. Combustion and Flame, 1996, 105: 541. [21] Bazyn, Tim, Herman Krier, Nick Glumac. Proceedings of the Combustion Institute, 2007, 31: 2021. [22] Lynch P, Fiore G, Krier H, et al. Combustion Science and Technology, 2010, 182: 842. [23] Chowdhury S, Sullivan K, Piekiel N, et al. The Journal of Physical Chemistry C, 2010, 114: 9191. [24] Lim J H, Yoon W S. Fall Conference of Korean Society of Propulsion Engineers, 2010. [25] Timothy F M, John D H. 40th AIAA Joint Propulsion Conference and Exhibit, 2004, 4037. [26] Goroshin S, Fomenko I, Lee J H S. In Symposium (International) on Combustion, 1996, 26: 1961. [27] Wolfhard H G, Parker W G. Proceedings of the Physical Society Section B, 1949, 62 523. [28] Arnold J O, Whiting E E, Lyle G C. Journal of Quantitative Spectroscopy and Radiative Transfer, 1969, 9: 775. [29] Parry D L, Brewster M Q. AIAA Journal of Thermophysics and Heat Transfer, 1991, 5: 142. [30] Jorgensen F R A, Zuiderwyk M. Journal of Physics. E: Sci. Instrum., 1985, 18: 486. [31] Berger M, Fuhs A E, Kol J. AIAA 23rd Aerospace Science Meeting, 1985, 85. [32] Beckstead M W. RTO/VKI Special Course on Internal Aerodynamics in Solid Rocket Propulsion, 2003, RTO-EN-023. [33] Legrand B, Marion M, Chauveau C, Gokalp I, Shafirovich E. Combustion Science and Technology, 2001, 165: 151. [34] Bocanegra P E, Sarou-Kanian V, Chauveau C, et al. 3rd European Combustion Meeting ECM, 2007.
