Detailed Reaction Mechanisms for Low Pressure Premixed n-Heptane Flames
Detailed Reaction Mechanisms for Low Pressure Premixed n-Heptane Flames
复制标题
DOI：
10.1080/00102209908924212
复制
发表时间：
1999-10
影响因子：
1.9
通讯作者：
C. Douté;J. Delfau;C. Vovelle
中科院分区：
文献类型：
--
作者：
C. Douté;J. Delfau;C. Vovelle
通过计算正庚烷燃烧的摩尔分数分布与在平焰燃烧器上稳定的四种预混火焰在低压（6 kPa）下的测量结果的比较，详细阐述和验证了正庚烷燃烧的反应机理。在宽的当量比范围内（0.7 - 2.0）。由于MBMS技术用于物种分析，稳定和活性物种都被考虑。对于大多数稳定物种，模型的预测与实验结果吻合得很好。主要活性种H. OH和O是相当好的预测，在丰富的火焰，而观察到的分歧，在贫和化学计量火焰。中间自由基可以分为三类，这取决于模型预测的准确性：（i）良好的协议在Ihe整个范围内的当量比，（ii）预测的摩尔分数不同于实验值由一个常数因子在四个火焰研究，（iii）计算和测量的最大摩尔分数之间的差异differi…
A detailed reaction mechanism of n-heptane combustion has been elaborated and validated by comparison of computed mole fraction profiles with those measured in four premixed flames stabilized on a flat-flame burner under low pressure )6 kPa). in a wide range of equivalence ratios (0.7 - 2.0). As the MBMS technique was used for species analyses, both stable and active species were considered. The predictions of the model are in good agreement with the experimental results for most stable species. The main active species H. OH and O are fairly well predicted in rich flames while disagreements are observed in the lean and the stoichiometric flames. The intermediate radicals can be grouped in three classes depending on the accuracy of the model predictions: (i) good agreement in Ihe whole range of equivalence ratios, (ii) predicted mole fractions differing from the experimental values by a constant factor in the four flames studied, (iii) difference between computed and measured maximum mole fractions differi...