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首页> 外文期刊>The Canadian Journal of Chemical Engineering >A New Reduced Reaction Mechanism of a SURROGATE FUEL FOR KEROSENE
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A New Reduced Reaction Mechanism of a SURROGATE FUEL FOR KEROSENE

机译：一种新的煤油替代油还原反应机理

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摘要

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-AI, 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.
机译：目前，将航空燃料的详细化学反应机理引入复杂的多维流体动力学问题尚不切实际。必须开发经过彻底评估的简化反应机制，以解决实际燃烧器配置中出现的特定问题。减少化学动力学机理的特征是210个元素反应（包括92个可逆反应和26个不可逆反应）和50种正癸烷的点燃和燃烧物种，并针对各种燃烧方案进行了验证。使用实验测量值对喷气式AI，O2和N2的预混火焰（在平焰燃烧器上稳定在1 atm的火焰）以及正癸烷冲击管点火实验进行实验验证。使用该还原机理和详细机理分别对正癸烷替代燃料进行了数值计算。压力为12、50 bar和当量比时，点火延迟时间的计算值分别为1.0、2.0，主要反应物和主要产物的摩尔分数与实验数据吻合良好。本研究表明，这种正癸烷替代物的还原机理可用于预测煤油的预混燃烧。

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