气相硼燃烧的化学动力学分析

推进技术 ›› 2015, Vol. 36 ›› Issue (10): 1582-1587.

气相硼燃烧的化学动力学分析

张鹏,洪延姬,丁小雨,沈双晏,杨波

装备学院激光推进及其应用国家重点实验室，北京 101416,装备学院激光推进及其应用国家重点实验室，北京 101416,装备学院激光推进及其应用国家重点实验室，北京 101416,装备学院激光推进及其应用国家重点实验室，北京 101416,装备学院激光推进及其应用国家重点实验室，北京 101416

发布日期:2021-08-15
作者简介:张鹏(1986—)，男，博士生，研究领域为等离子体强化点火与助燃。E-mail: zhangpengtf@126.com 通讯作者:洪延姬(1963—)，女，博士，研究员，研究领域为先进推进技术。
基金资助:
国家自然科学基金(11372356)。

Chemical Kinetics Analysis for Combustion of Gas-Phase Boron

State Key Laboratory of Laser Propulsion and Application，Equipment Academy，Beijing 101416，China,State Key Laboratory of Laser Propulsion and Application，Equipment Academy，Beijing 101416，China,State Key Laboratory of Laser Propulsion and Application，Equipment Academy，Beijing 101416，China,State Key Laboratory of Laser Propulsion and Application，Equipment Academy，Beijing 101416，China and State Key Laboratory of Laser Propulsion and Application，Equipment Academy，Beijing 101416，China

Published:2021-08-15

摘要/Abstract

摘要： 为研究温度和H2，CO，F等组分影响气相硼燃烧的化学反应动力学机制，利用基于CHEMKIN 建立的B/C/H/O/N/F体系的反应动力学机理，模拟了温度和各自由基摩尔分数随时间的变化，并通过敏感性分析和化学反应速率分析研究了不同条件下影响气相硼燃烧的主要基元反应。结果表明，影响气相硼燃烧的主要反应式是R31 BO+O+M=BO₂+M，BO的氧化速率决定了气相硼燃烧的快慢；提高初始温度，BO的氧化途径仍为R31；添加0.5% CO可以增加O自由基浓度，加快R31的反应速率；添加0.5% F后BO的氧化途径增加了反应式R183 BO+F+M=OBF+M，加快BO的氧化速率；添加0.5% H2后BO的氧化途径转变为R36 BO+H+M=HBO+M，R35 BO+OH+M=HBO₂+M和R58 BO₂+H+M=HBO₂+M，加快BO的氧化速率从而缩短延迟时间；在含有H2的初始组分中，气相硼燃烧的主导反应过程: B2O₂/HBO→BO→BO₂→HBO₂。

关键词: 气相；硼；延迟时间；燃烧时间；化学动力学效应

Abstract: To study the chemical kinetics for effects of temperature and H2，CO，F free radicals on the combustion of gas-phase boron，the kinetic model and scheme of combustion in B/C/H/O/N/F systems based on CHEMKIN were presented. Evolution in time of temperature and mole fractions of free radicals were simulated，and key elementary reactions impacting on the combustion of gas-phase boron at different initial condition were found through sensitivity analysis and rate of BO analysis. The results show that，the important reaction for combustion of gas-phase boron is R31 BO+O+M=BO₂+M，the oxidation rate of BO is the key to control the rate of gas-phase boron combustion. The oxidized pathway of BO does not change with increasing of the initial temperature，the mole fraction of O free radical increases which makes reaction rate of R31 increase with adding 0.5% CO，the oxidized pathway of BO is changed to R31 and R183 BO+F+M=OBF+M for adding 0.5% F，and the oxidized pathway of BO is changed to R36 BO+H+M=HBO+M，R35 BO+OH+M=HBO₂+M，R58 BO₂+H+M=HBO₂+M for adding 0.5% H2 from R31 for auto-ignition，and thus they increase the oxidation rate of BO and reduce the delay time. The main reaction process for gas-phase boron with H2 is: B2O₂/HBO→BO→BO₂→HBO₂.

Key words: Gas-phase；Boron；Delay time；Combustion time；Chemical kinetic effect

张鹏,洪延姬,丁小雨,沈双晏,杨波. 气相硼燃烧的化学动力学分析[J]. 推进技术, 2015, 36(10): 1582-1587.

ZHANG Peng,HONG Yan-ji,DING Xiao-yu,SHEN Shuang-yan,YANG Bo. Chemical Kinetics Analysis for Combustion of Gas-Phase Boron[J]. Journal of Propulsion Technology, 2015, 36(10): 1582-1587.

参考文献

[1] Zhou W. Numerical Study of Multi–Phase Combustion: Ignition and Combustion of an Isolated Boron Particle in Fluorinated Environments[D]. Princeton: Princeton University, 1998.
[2] 郑剑, 李学军, 庞爱民, 等. 国内外含硼富燃料推进剂燃烧性能研究现状[J]. 飞航导弹, 2003, 4: 50–57.
[3] Besser H L, Strecker R. Overview of Boron Ducted Rocket Development During the Last Two Decades[J].Journal of Propulsion and Power, 1991, 7(2): 133-178.
[4] Yeh C L, Kuo K K. Ignition and Combustion of Boron Particles[J]. Progress in Energy and Combustion Science ,1996, 22: 511-541.
[5] King M K. Boron Ignition and Combustion in Air-Augmented Rocket Afterburners[J]. Combustion Science and Technology, 1972, 5(4): 155-158.
[6] Glassman I, Williams F A, Antaki P. A Physical and Chemical Interpretation of Boron Particle Combustion[C]. Pittsburgh: 20th Symposium (International) on Combustion, 1984.
[7] Kuo K K. Boron Ignition Model[D]. Fremont: Northwestern Polytechnic University, 1998.
[8] Young G, Sullivan K, Zachariah M R, et al. Combustion Characteristics of Boron Nanoparticles [J].Combustion and Flame, 2009, 156: 322-333.
[9] Yetter R A. Kinetics of High Temperature B/O/H/C Chemistry[J]. Combustion and Flame, 1991, 83(12): 43–62.
[10] Pastemack L. Gas Phase Modeling of Homogeneous Boron Oxygen Hydrogen Carbon Combustion[J]. Combustion and F1ame, 1992, 90(34): 259-268.
[11] Zhou W. Effect of Fluorine on the Combustion of “Clean” Surface Boron Particles[J]. Combustion and Flame, 1998, 112(4): 507-521.
[12] 刘林林, 何国强, 王英红. C/H/O/N/B体系气相燃烧化学动力学模型及计算研究[J]. 推进技术, 2013, 34(10): 1376-1381. (LIU Lin-lin, HE Guo-qiang, WANG Ying-hong. Research on Model and Calculation of Chemical Kinetics Model of C/H/O/N/B System[J]. Journal of Propulsion Technology, 2013, 34(10): 1376-1381.)
[13] 席剑飞, 刘建忠, 杨卫娟, 等. 硼在氧化性气氛中燃烧的热力学分析[J]. 固体火箭技术, 2012, 35(1): 73-78.
[14] Kee R J, Rupley F M, Miller J A. CHEMKIN-III: A Fortran Chemical Kinetics Package for the Analysis of Gas-Phase Chemical and Plasma Kinetics[R]. Albuquerque: Sandia National Laboratories, 1996.
[15] Brown P D, Byrne G D, Hindmarsh A C. VODE, A Variable-Coefficient ODE Solver[J]. SIAM Journal on Scientific and Statistical Computing, 1989, 10(5): 1038-1051.(编辑:史亚红)　　　　　　　　　　　　　*　收稿日期:2015-03-16；修订日期:2015-05-29。基金项目:国家自然科学基金(11372356)。作者简介:张鹏(1986—),男,博士生,研究领域为等离子体强化点火与助燃。E-mail: zhangpengtf@126.com通讯作者:洪延姬(1963—),女,博士,研究员,研究领域为先进推进技术。E-mail: hongyanji@vip.sina.com