Experimental Study of Premixed Stoichiometric Ethylene/Oxygen/Argon Flame  

作　　者：Qing Zhang Yu-yang Li Zhen-yu Tian Tai-chang Zhang Jing Wang Fei Qi 

机构地区：[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

出　　处：《Chinese Journal of Chemical Physics》2006年第5期379-385,共7页化学物理学报（英文）

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.

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.

关 键 词：Premixed ethylene/oxygen flame Tunable synchrotron photoionization Reaction mechanism 

分 类 号：O[理学]