A new reduced reaction mechanism of a surrogate fuel for kerosene
A new reduced reaction mechanism of a surrogate fuel for kerosene
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DOI：
10.1002/cjce.21674
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发表时间：
2013-03
影响因子：
2.1
通讯作者：
W. Zeng;Jing Liu;Chen Xiaoxiao;Hong-an Ma
中科院分区：
文献类型：
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作者：
W. Zeng;Jing Liu;Chen Xiaoxiao;Hong-an Ma
将航空燃料的详细化学反应机理引入到复杂的多维流体动力学问题中目前是不切实际的。为了解决实际燃烧室构型中出现的具体问题，必须发展经过全面评估的简化反应机理。编制了正癸烷点火和燃烧的简化化学动力学机制，包括210个元素反应（包括92个可逆反应和26个不可逆反应）和50个物种，并在广泛的燃烧制度下进行了验证。验证进行了使用实验测量的预混火焰的喷气-A1，O2和N2，稳定在1个大气压的平焰燃烧器，以及从正癸烷激波管点火实验。分别用该简化机理和详细机理对正癸烷替代燃料进行了数值计算。在压力为12、50 bar，当量比为1.0、2.0时，点火延迟时间的计算值与实验值吻合较好。本研究表明，这种正癸烷替代物的简化机理可以用来预测煤油的预混燃烧。© 2012加拿大化学工程学会
The introduction of detailed chemical reaction mechanisms for aviation fuels into complex multidimensional fluid dynamics problems is not practical at the present time. Simplified reaction mechanisms that have been thoroughly evaluated must be developed to address specific issues arising in realistic combustor configurations. A reduced chemical kinetic mechanism features 210 elemental reactions (including 92 reversible reactions and 26 irreversible reactions) and 50 species for the ignition and combustion of n-decane was compiled and validated for a wide range of combustion regimes. Validations were performed using experimental measurements on a premixed flame of Jet-A1, O2 and N2, stabilised at 1 atm on a flat-flame burner, as well as from n-decane shock-tube ignition experiments. Numerical calculations were performed using this reduced mechanism and the detailed mechanism respectively for n-decane surrogate fuel. The calculated values of ignition delay times at pressures of 12, 50 bar and equivalence ratio is 1.0, 2.0, respectively and the main reactants and main products mole fractions agree well with experimental data. The present study shows that this reduced mechanism for the n-decane surrogate can be employed to predict premixed combustion of kerosene. © 2012 Canadian Society for Chemical Engineering