Experimental and theoretical studies of laminar flame speed of CO/H2 in O2/H2O atmosphere
Experimental and theoretical studies of laminar flame speed of CO/H2 in O2/H2O atmosphere
复制标题
O2/H2O气氛中CO/H2层流火焰速度的实验与理论研究
DOI：
10.1016/j.ijhydene.2015.11.120
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发表时间：
2016-01
影响因子：
7.2
通讯作者：
Yukun Qin
中科院分区：
文献类型：
--
作者：
Yijun Zhao;Huanhuan Xu;Yangzhou Guo;Yukun Qin
用本生灯法测量了CO/H2/O2/H2O预混层流火焰速度。在初始温度为400 K，H2O含量为47%的条件下，分析了当量比和CO/H2比对层流火焰速度的影响。根据最近发表的动力学和热力学数据，提出了一种改进的O2/H2O气氛下CO/H2燃烧反应机理。层流火焰速度计算使用戴维斯，李，和修改的机制。在较高的H2含量下，Davis和Li机理模拟的层流火焰速度低于实验值，但修正后的机理模拟结果与实验值吻合较好。在O2/H2O气氛和空气气氛下对CO/H2燃烧机理进行了敏感性分析，以确定关键基元反应。采用综合组分消耗通径分析法分析了H2O对CO/H2/O2燃烧的化学效应。当CO含量大于42%时，H2O的加入促进了O + H2O = OH + OH反应的进行，促进了燃烧;当CO含量小于42%时，H2O的加入通过降低O + H2= H + OH反应的速率而抑制了燃烧。
The laminar flame speeds of premixed CO/H2/O2/H2O were measured using a Bunsen burner method. The effects of the equivalence ratio and CO/H2ratio on the laminar flame speeds were analyzed under various conditions with the initial temperature of 400 K, H2O content in the mixture of 47%. A modified CO/H2combustion reaction mechanism in O2/H2O atmosphere was proposed based on recently published kinetic and thermodynamic data. The laminar flame speed was calculated using the Davis, Li, and modified mechanisms. At higher H2content, the laminar flame speeds simulated with the Davis and Li mechanisms were lower than the experiment data, but the modified mechanism results agreed well with the experimental ones. A sensitivity analysis of the CO/H2combustion mechanism was performed in O2/H2O atmosphere and air atmosphere to identify the critical elementary reactions. The chemical effects of H2O on CO/H2/O2combustion were analyzed using integrated species consumption path analysis. For CO content >42% conditions, H2O addition accelerated reaction O + H2O = OH + OH and promoted combustion, for CO < 42% conditions, it inhibited combustion by reducing the reaction rate of O + H2= H + OH.
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利用OH-PLIF和光谱仪研究不同成分合成气层流火焰速度和火焰结构
影响因子：
7.2
作者：
Jin, Wu;Luong Dinh Thi;Huang, Zuohua;Zhang, Yang
通讯作者：
Zhang, Yang
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影响因子：
5.3
作者：
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通讯作者：
Zuohua Huang
DOI：
10.1524/zpch.1963.36.3_4.136
发表时间：
1963-02
期刊：
Zeitschrift für Physikalische Chemie
影响因子：
--
作者：
H. Richtering
通讯作者：
H. Richtering
DOI：
10.1243/095765005x5990
发表时间：
2005-03-01
影响因子：
1.7
作者：
Richards, GA;Casleton, KH;Chorpening, BT
通讯作者：
Chorpening, BT
影响因子：
1.5
作者：
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通讯作者：
Dryer, FL