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Experimental Study of Premixed Stoichiometric Ethylene/Oxygen/Argon Flame

ISSN号：1674-0068
期刊名称：《化学物理学报》
时间：0
分类：O[理学]
作者机构：[1]School of Mathematics and Physics, Anhui University of Technology, Ma＇anshan 243002, China, [2]National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
相关基金：Ⅵ. ACKN0WLEDGMENTS This work was supported by the National Natural Science Foundation of China （No.20473081 and No.20533040）, and Chinese Academy of Sciences. The authors are also thankful for the valuable help in the experimental work from Aigou Zhu. Fei Qi thanks the Combustion Research Facility of Sandia National Labs to provide a Chemkin program package for kinetic modeling study.

作者： Qing Zhang[1], Yu-yang Li[2], Zhen-yu Tian[2], Tai-chang Zhang[2], Jing Wang[2], Fei Qi[2]

中文摘要：

在有 stoichiometric 等价比率(=1 ) 的 2.667 kPa 的 premixed 乙烯 / 氧 / 氩火焰的全面试验性的研究与悦耳的同步加速器光电游离和分子横梁的采样团 spectrometry 技术被执行。在火焰的最观察的种类的异构体被光电游离效率系列的大小明白地识别，例如 C ₃ H ₄, C ₂ H ₄ O 和 C ₄ H ₄ 。直到 C ₇ H ₈ 被在电离阀值，和火焰温度侧面附近在选择光子精力扫描炉子位置测量被使用 Pt/Pt-13%Rh 热电偶获得。与以前的研究相比，很多新火焰种类： C ₃ H ₂, C ₃ H ₃, C ₃ H ₅, C ₂ H ₆ O ， C ₄ H ₂, C ₄ H ₄, C ₄ H ₆, C ₃ H ₄ O ， C ₃ H ₆ O ， C ₃ H ₈ O ， C ₅ H ₆, C ₄ H ₈ O 和 C ₇ H ₈,被观察。在火焰的一系列自由激进分子被检测是 CH ₃, C ₂ H ₃, C ₂ H ₅, HCO， C ₃ H ₃ 和 C ₃ H ₅ 。基于试验性的工作，减少的反应机制包括 40 种类和 223 反应被开发。建模并且大小为主要种类和大多数中介同意很好。一个详细运动模型为这火焰被需要。

英文摘要：

A comprehensive experimental study of the premixed ethylene/oxygen/argon flame at 2.667 kPa with a stoichiometric equivalence ratio （Ф=1） was performed with the tunable synchrotron photoionization and molecular-beam sampling mass spectrometry techniques. The isomers of most observed species in the flame were unambiguously identified by measurements of the photoionization etticiency spectra, e.g. C3H4, C2H4O and C4H4. The mole fraction profiles of species up to C7H8 were measured by scanning the burner position at the selected photon energies near ionization thresholds, and the flame temperature profile was obtained by using Pt/Pt-13%Rh thermocouple. Compared with the previous studies, a lot of new flame species： C3H2, C3H3, C3H5, C2H6O, C4H2, C4H4, C4H6, C3H4O, C3H6O, C3H8O, C5H6, C4H8O and C7H8, were observed. A series of free radicals in the flame are detected to be CH3, C2H3, C2H5, HCO, C3H3 and C3H5. Based on the experimental work, a reduced reaction mechanism was developed including 40 species and 223 reactions. Modeling and measurements agree well for the major species and most intermediates. A detailed kinetic model is desired for this flame.

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