Shock-Tube Measurements and Kinetic Modeling Study of Methyl Propanoate Ignition
Shock-Tube Measurements and Kinetic Modeling Study of Methyl Propanoate Ignition
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DOI：
10.1021/ef501527z
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发表时间：
2014-10
期刊：
影响因子：
5.3
通讯作者：
Zihang Zhang;Erjiang Hu;Lun Pan;Yizhen Chen;Jing Gong;Zuo-hua Huang
中科院分区：
文献类型：
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作者：
Zihang Zhang;Erjiang Hu;Lun Pan;Yizhen Chen;Jing Gong;Zuo-hua Huang
在激波管中测量丙酸甲酯 (MP) 的点火延迟时间，温度范围为 1040–1720 K，压力为 1.2–10 atm，燃料浓度为 0.5–2.0%，当量比为 0.5–2.0。通过多元线性回归，获得了测试点火延迟时间的相关性，并将测量数据与之前的数据进行了比较。两个可用的 MP 模型（Princeton 模型和 Westbrook 模型）用于模拟实验数据。结果表明，有必要对现有 MP 模型进行进一步修改。改进的MP模型由318种物质和1668个反应组成，是在之前的研究基础上提出的，与其他两个可用模型相比，它在所有测试条件下都能更好地预测MP点火延迟时间。修改后的 MP 模型进一步根据 MP 热解数据和层流火焰速度进行验证，并取得了合理的一致性。敏感性分析表明，小的自由基反应...
Ignition delay times of methyl propanoate (MP) were measured in a shock tube over the temperature range of 1040–1720 K, pressures of 1.2–10 atm, fuel concentrations of 0.5–2.0%, and equivalence ratios of 0.5–2.0. Through multiple linear regression, a correlation for the tested ignition delay times was obtained, and the measured data were also compared to the previous data. Two available MP models (Princeton model and Westbrook model), were used to simulate the experimental data. Results suggest that further modifications on the available MP models are necessary. The modified MP model, consisting of 318 species and 1668 reactions, was proposed on the basis of previous studies, and it gives better prediction on the MP ignition delay times under all tested conditions than those of the other two available models. The modified MP model was further validated against the MP pyrolysis data and laminar flame speeds, and reasonable agreements were achieved. Sensitivity analysis reveals that the small radical reacti...