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Initial Temperature Effects on the Combustion Characteristics of Al
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2022-06-29 , DOI: 10.1002/prep.202100365 Hui Liu 1 , Jianzhong Liu 1 , Jifei Yuan 1 , Xiaolin Chen 1 , Yu Zhao 2, 3 , Wuxi Xie 2
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2022-06-29 , DOI: 10.1002/prep.202100365 Hui Liu 1 , Jianzhong Liu 1 , Jifei Yuan 1 , Xiaolin Chen 1 , Yu Zhao 2, 3 , Wuxi Xie 2
Affiliation
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The combustion of aluminium in propellants plays an important role in the energy release of propellants, and investigations of the combustion mechanism of aluminium can help to further improve the energy release characteristics of propellants. The changes in reaction temperature and product content over time during the reaction of Al(l)/O2 and Al(l)/AP systems at different initial temperatures were calculated using the Closed Homogeneous Batch Reactor in CHEMKIN-PRO, and a sensitivity analysis was performed for the Al(l)/AP system. The results showed that with increases in the initial temperature, the heat storage time and combustion time of the Al(l)/O2 system were shortened and the equilibrium temperature increased, which was also true for the Al(l)/AP system. Moreover, the increase of initial temperature was favourable to the decomposition of O2 and the formation of AlO in Al(l)/O2 system but had little effect on the Al/AP system. The main reaction path of the Al(l)/AP system changed with increases of initial temperature, although 
, 
, 
, and 
are common elementary reactions with high temperature sensitivity and thus play a decisive role in the change of H2, AlCl, AlO and O contents as well as the changes of the reaction temperature of the system. In this paper, the combustion characteristics of an Al/AP system were investigated in depth, and the results can provide a theoretical basis for revealing the combustion mechanism and improving the energy release characteristics of aluminium-based AP-containing solid propellants.
中文翻译：
初始温度对铝燃烧特性的影响
推进剂中铝的燃烧对推进剂的能量释放具有重要作用，研究铝的燃烧机理有助于进一步改善推进剂的能量释放特性。使用 CHEMKIN-PRO 中的封闭均相间歇反应器计算了 Al(l)/O 2和 Al(l)/AP 系统在不同初始温度下反应过程中反应温度和产物含量随时间的变化，并进行了敏感性分析对 Al(l)/AP 系统进行了测试。结果表明，随着初始温度的升高，Al(l)/O 2的蓄热时间和燃烧时间系统被缩短并且平衡温度增加，这对于 Al(l)/AP 系统也是如此。此外，初始温度的升高有利于Al(l)/O 2体系中O 2的分解和AlO的形成，但对Al/AP体系影响不大。Al(l)/AP体系的主要反应路径随着初始温度的升高而变化，虽然 , , , 和是常见的具有高温敏感性的基本反应，因此对H 2的变化起决定性作用。、AlCl、Al2O和O的含量以及体系反应温度的变化。本文深入研究了Al/AP体系的燃烧特性，研究结果可为揭示含AP固体推进剂燃烧机理和改善能量释放特性提供理论依据。
更新日期：2022-06-29
,
,
, and are common elementary reactions with high temperature sensitivity and thus play a decisive role in the change of H2, AlCl, AlO and O contents as well as the changes of the reaction temperature of the system. In this paper, the combustion characteristics of an Al/AP system were investigated in depth, and the results can provide a theoretical basis for revealing the combustion mechanism and improving the energy release characteristics of aluminium-based AP-containing solid propellants.
中文翻译：
初始温度对铝燃烧特性的影响
推进剂中铝的燃烧对推进剂的能量释放具有重要作用，研究铝的燃烧机理有助于进一步改善推进剂的能量释放特性。使用 CHEMKIN-PRO 中的封闭均相间歇反应器计算了 Al(l)/O 2和 Al(l)/AP 系统在不同初始温度下反应过程中反应温度和产物含量随时间的变化，并进行了敏感性分析对 Al(l)/AP 系统进行了测试。结果表明，随着初始温度的升高，Al(l)/O 2的蓄热时间和燃烧时间系统被缩短并且平衡温度增加，这对于 Al(l)/AP 系统也是如此。此外，初始温度的升高有利于Al(l)/O 2体系中O 2的分解和AlO的形成，但对Al/AP体系影响不大。Al(l)/AP体系的主要反应路径随着初始温度的升高而变化，虽然 , , , 和是常见的具有高温敏感性的基本反应，因此对H 2的变化起决定性作用。
、AlCl、Al2O和O的含量以及体系反应温度的变化。本文深入研究了Al/AP体系的燃烧特性，研究结果可为揭示含AP固体推进剂燃烧机理和改善能量释放特性提供理论依据。
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