ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Ignition characteristics of Al-Mg alloy particles in hot oxygen-contained gas
Received date: 2024-10-15
Revised date: 2024-11-20
Accepted date: 2024-12-11
Online published: 2024-12-18
Supported by
National Natural Science Foundation of China(12272409);Independent Innovation Science Foundation of National University of Defense and Technology(24-ZZCX-JDZ-34)
Al-Mg alloy particles， characterized by short ignition delay times and rapid combustion rates， serve as critical metal additives in solid propellants. An experimental system for investigating the ignition characteristics of metal particles in high-temperature gas environments was employed to measure the ignition times of aluminum-magnesium alloy particles exposed to high-temperature gas mixtures composed of O2，H2O， and CO2. A simulation method for the ignition process of aluminum-magnesium alloy particles was developed， incorporating the combined effects of convection heat transfer， radiation heat transfer， and Heterogeneous Surface Reaction （HSR）. The computational results for particle ignition times were validated， showing a prediction error within 15%. The ignition process of 100 μm spherical atomized Al-Mg alloy particle with 90wt% Al content in oxygen concentration of 30.4% condition was simulated. Results indicate that the heat contributions from convection heat transfer， radiation heat transfer， and HSR heat release maintained a ratio of approximately 2∶2∶1. Specifically， exothermic reactions involving oxygen accounted for 59.44% of the total heat release， while those involving magnesium contributed 25.82%. The ignition time of aluminum-magnesium alloy particles is significantly influenced by the gas flow velocity and temperature of the high-temperature environment. The former primarily affects ignition time by altering convection heat transfer rates， whereas the latter primarily impacts ignition time through variations in radiation heat transfer rates.
Yunchao FENG , Gangshun HUANG , Likun MA , Binbin CHENG , Jiarui ZHANG , Zhixun XIA . Ignition characteristics of Al-Mg alloy particles in hot oxygen-contained gas[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2025 , 46(12) : 431407 -431407 . DOI: 10.7527/S1000-6893.2024.31407
| [1] | LI S P， WEN Z， LIU L， et al. New discovery of aluminium agglomeration in composite solid propellants based on microscopic heating system［J］. Combustion and Flame， 2024， 263： 113342. |
| [2] | BELAL H， HAN C W， GUNDUZ I E， et al. Ignition and combustion behavior of mechanically activated Al–Mg particles in composite solid propellants［J］. Combustion and Flame， 2018， 194： 410-418. |
| [3] | LIU L， AO W， WEN Z， et al. Modifying the ignition， combustion and agglomeration characteristics of composite propellants via Al-Mg alloy additives［J］. Combustion and Flame， 2022， 238： 111926. |
| [4] | LIAO X Q， LIANG D L， WANG F， et al. Combustion and energy performance of multiple aluminum-based alloy particles?［J］. Combustion and Flame， 2024， 269： 113666. |
| [5] | 付存智， 李和平， 黄雪峰， 等. 固体推进剂用单质、合金及氢化物的研究进展［J］. 杭州电子科技大学学报（自然科学版）， 2023， 43（5）： 58-65. |
| FU C Z， LI H P， HUANG X F， et al. Research progress of elemental， alloys and metal hydrides for solid propellant［J］. Journal of Hangzhou Dianzi University（Natural Sciences）， 2023， 43（5）： 58-65 （in Chinese）. | |
| [6] | NIE H Q， SCHOENITZ M， DREIZIN E L. Oxidation of differently prepared Al-Mg alloy powders in oxygen［J］. Journal of Alloys and Compounds， 2016， 685： 402-410. |
| [7] | SCHOENITZ M， DREIZIN E. Oxidation processes and phase changes in metastable Al-Mg alloys［J］. Journal of Propulsion and Power， 2004， 20（6）： 1064-1068. |
| [8] | CORCORAN A L， WANG S， ALY Y， et al. Combustion of mechanically alloyed Al?Mg Powders in products of a hydrocarbon flame?［J］. Combustion Science and Technology， 2015， 187（5）： 807-825. |
| [9] | FENG Y C， MA L K， XIA Z X， et al. Ignition and combustion characteristics of single gas-atomized Al-Mg alloy particles in oxidizing gas flow?［J］. Energy， 2020， 196： 117036. |
| [10] | DANIELLE Q， CORCORAN A L， DREIZIN E L. Combustion of mechanically alloyed aluminum-magnesium powders in steam［J］. Propellants， Explosives， Pyrotechnics， 2015， 40（5）： 749-754. |
| [11] | RUAN C， WU Z Y， STITI M， et al. Combustion of micron-sized Al-Mg alloy wires in hot H2O/O2/N2 flows［J］. Fuel， 2024， 357： 129719. |
| [12] | 侯凤婷. 铝镁合金的点火及燃烧特性研究［D］. 杭州： 杭州电子科技大学， 2020. |
| HOU F T. Investigation on ignition and combustion characteristics of Al-Mg alloy［D］. Hangzhou： Hangzhou Dianzi University， 2020 （in Chinese）. | |
| [13] | HOU F T， ZHANG B C， FENG M Y， et al. Study on laser ignition and combustion characteristics of micron-sized aluminum and Al-Mg alloys particles［J］. Journal of Physics： Conference Series， 2024， 2746（1）： 012046. |
| [14] | 谢晓， 朱晨光， 赵凤起， 等. Mg-Al合金在空气中燃烧时Mg的优先反应特性及Al的氮化反应机理［J］. 火炸药学报， 2022， 45（2）： 222-228. |
| XIE X， ZHU C G， ZHAO F Q， et al. Preferential reaction characteristics of Mg and nitridation mechanism of Al during the combustion of Mg-Al alloy in air［J］. Chinese Journal of Explosives & Propellants， 2022， 45（2）： 222-228 （in Chinese）. | |
| [15] | WANG J D， MA Y P， DONG Z Q， et al. Study on the effect of particle morphology on transient dispersion behavior and ignition of AlMg alloy powder［J］. Powder Technology， 2024， 435： 119416. |
| [16] | 马浩然， 毛丹， 张宏雷， 等. Al-Mg合金的制备和燃烧性能研究［J］. 固体火箭技术， 2016， 39（5）： 649-654. |
| MA H R， MAO D， ZHANG H L， et al. Preparation and properties of Al-Mg alloy powders as combustion agent［J］. Journal of Solid Rocket Technology， 2016， 39（5）： 649-654 （in Chinese）. | |
| [17] | 杨世铭， 陶文铨. 传热学［M］. 3版. 北京： 高等教育出版社， 1998： 436-438. |
| YANG S M， TAO W Q. Heat transfer［M］. 3rd ed. Beijing： Higher Education Press， 1998： 436-438 （in Chinese）. | |
| [18] | FENG Y C， XIA Z X， HUANG L Y， et al. Ignition and combustion of a single aluminum particle in hot gas flow［J］. Combustion and Flame， 2018， 196： 35-44. |
| [19] | MOHAN S， FURET L， DREIZIN E L. Aluminum particle ignition in different oxidizing environments［J］. Combustion and Flame， 2010， 157（7）： 1356-136. |
| [20] | GUREVICH M A， OZEROVA G E， STEPANOV A M. Heterogeneous ignition of an aluminum particle in oxygen and water vapor［J］. Combustion， Explosion and Shock Waves， 1970， 6（3）： 291-297. |
| [21] | 韩志江. 镁/水着火燃烧模型及高温均相反应机理研究［D］. 杭州： 浙江大学， 2012. |
| HAN Z J. Study on the ignition and combustion model and high-temperature homogeneous reaction mechanism of magnesium with water［D］. Hangzhou： Zhejiang University， 2012 （in Chinese）. | |
| [22] | VALOV A， GUSACHENKO E， SHEVTSOV V. The effect of CO2 pressure and concentration on the ignition of single Mg particles in C-Ar mixtures［J］. Combustion， Explosion， and Shock Waves， 1992， 28（1）：7-10. |
| [23] | ELKOTB M M， SALAMA N， NASSEF I. Modeling of solid particle interaction in a high-velocity hot gas stream［J］. Symposium （International） on Combustion， 1996， 26（2）： 1937-1944. |
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