高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (12): 20230322.doi: 10.7503/cjcu20230322

• 物理化学 • 上一篇    下一篇

基于极小反应网络方法构建燃烧反应机理: JP-10燃料燃烧

廖爱雪1, 李宜蔚1, 毛业兵2(), 李象远1()   

  1. 1.四川大学化工学院, 空天动力燃烧与冷却教育部工程研究中心
    2.机械工程学院, 成都 610065
  • 收稿日期:2023-07-12 出版日期:2023-12-10 发布日期:2023-09-18
  • 通讯作者: 毛业兵,李象远 E-mail:maoyb@scu.edu.cn;xyli@scu.edu.cn
  • 作者简介:毛业兵, 男, 博士, 副研究员, 主要从事燃烧反应动力学研究. E-mail: maoyb@scu.edu.cn
  • 基金资助:
    国家自然科学基金(92060101)

Combustion Mechanism Construction Based on Minimized Reaction Network: Combustion of JP-10

LIAO Aixue1, LI Yiwei1, MAO Yebing2(), LI Xiangyuan1()   

  1. 1.Engineering Research Center of Combustion and Cooling for Aerospace Power,Ministry of Education,College of Chemical Engineering
    2.College of Mechanic,Sichuan University,Chengdu 610065,China
  • Received:2023-07-12 Online:2023-12-10 Published:2023-09-18
  • Contact: MAO Yebing, LI Xiangyuan E-mail:maoyb@scu.edu.cn;xyli@scu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(92060101)

摘要:

外四氢双环戊二烯(C10H16, JP-10)以其低冰点、 高体积能量密度和高比冲等优点, 成为爆震发动机、 导弹和超燃冲压发动机的常用燃料之一. 已知的JP-10燃烧机理大多是详细机理, 物种数和反应数目庞大, 难以用于高维数值模拟.本文基于极小反应网络方法(MRN), 在先前发展的C0-C3机理基础上扩充物种和反应步 骤, 构建了包含36个物种和57步反应的JP-10燃烧机理. 该机理采用全可逆基元反应, 反应速率常数采用 Arrhenius方程的双参数形式(A, E)表述. 结合实验数据对该机理进行了验证, 结果表明, 该机理能在合理的误差范围内再现JP-10燃烧的点火延迟时间和层流火焰传播速度.

关键词: JP-10, 燃烧反应机理, 极小反应网络, 同时化学平衡

Abstract:

JP-10(exo-tetrahydrodicyclopentadiene, C10H16) is widely used as a fuel in detonation engines, missiles, and scramjets due to its low freezing point, high volumetric energy density, and high specific impulse. Most of the JP-10 mechanisms found in literature are detailed mechanisms with a large number of species and reactions, making them difficult to use in high-dimensional numerical simulations. In this study, based on the minimized reaction network(MRN) method, the species and reaction steps from the previously developed C0-C3 mechanism were expanded to construct a JP-10 combustion mechanism with the minimum number of reaction steps and specified number of species, including 36 species and 57 independent reactions. The mechanism employed fully reversible elementary reactions, and the reaction rate constants were described by a dual-parameter form (A, E) of the Arrhenius equation. The mechanism was validated against experimental data, and the results showed that it could reproduce the ignition delay time and laminar flame propagation velocity of JP-10 combustion within a reasonable error range. The mechanism constructed in this study, based on the MRN method and the dual-parameter Arrhenius rate constant approach, combines a small mechanism size with high predictive accuracy. It can provide support for high-fidelity numerical simulations of JP-10 fuel in engineering-scale combustion chambers.

Key words: JP-10, Combustion reaction mechanism, Minimized reaction network, Simultaneous chemical equilibrium

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