Demonstration of a burner for the investigation of partially premixed low-temperature flames
Demonstration of a burner for the investigation of partially premixed low-temperature flames
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DOI：
10.1016/j.combustflame.2010.02.002
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发表时间：
2010-10
影响因子：
4.4
通讯作者：
U. Struckmeier;A. Lucassen;N. Hansen;Tomoya Wada;N. Peters;K. Kohse-Höinghaus
中科院分区：
文献类型：
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作者：
U. Struckmeier;A. Lucassen;N. Hansen;Tomoya Wada;N. Peters;K. Kohse-Höinghaus
设计了一种燃烧器，在常压下稳定近一维低温火焰，可进入1500K附近的燃烧状态，用于定量物种诊断。通过预热燃烧器和调整惰性气体流量，在氩-稀甲烷-氧火焰中实现了1300 ~ 1800K的燃烧温度。用电子电离质谱法测定反应物、产物和中间体的摩尔分数。燃烧参数包括化学计量、稀释剂摩尔分数和预热温度。摩尔分数曲线类似于在常规预混扁平火焰中所取的。鉴定出许多C1和c2中间体以及一些氧合物种。低温气体中含有90%氩气的甲烷-氧气火焰中未检测到高质量物质（m/z bbb42）。
A burner, which stabilizes near-one-dimensional low-temperature flames at atmospheric pressure, was designed to access the combustion regime near 1500K for quantitative species diagnostics. Combustion temperatures between 1300 and 1800K in argon-diluted methane–oxygen flames were achieved by preheating the burner and adapting the inert gas flow. Mass spectrometry with electron ionization was used to determine mole fractions profiles of reactants, products, and intermediates. Combustion parameters were varied including stoichiometry, diluent mole fraction and preheat temperature. Mole fraction profiles resemble those taken in regular premixed flat flames. A number of C1- and C2-intermediates as well as some oxygenated species were identified. Higher-mass species (m/z>42) were not detected in the low-temperature methane–oxygen flames which contain 90% argon in the cold gases.