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倪图强, 聂绪建, 俞书勤, 孔繁敖. 激光对火焰的诊断
Ⅱ. 激光诱导荧光法对液化石油气/空气火焰中的OH基浓度二维分布的检测[J]. 物理化学学报, 1987, 3(02): 119-122. doi: 10.3866/PKU.WHXB19870203
Citation: Ni Tuqiang, Nie Xujian, Yu Shuqin, Kong Fanao. LASER DIAGNOSTICS FOR FLAMES
Ⅱ. THE TWO-DIMENSIONAL CONCENTRATION DISTRIBUTION OF OH (X) IN A HYDROCARBON/AIR FLAME DETECTED BY LASER INDUCED FLUORESCENCE METHOD[J]. Acta Physico-Chimica Sinica, 1987, 3(02): 119-122. doi: 10.3866/PKU.WHXB19870203
Ⅱ. 激光诱导荧光法对液化石油气/空气火焰中的OH基浓度二维分布的检测[J]. 物理化学学报, 1987, 3(02): 119-122. doi: 10.3866/PKU.WHXB19870203
Citation: Ni Tuqiang, Nie Xujian, Yu Shuqin, Kong Fanao. LASER DIAGNOSTICS FOR FLAMES
Ⅱ. THE TWO-DIMENSIONAL CONCENTRATION DISTRIBUTION OF OH (X) IN A HYDROCARBON/AIR FLAME DETECTED BY LASER INDUCED FLUORESCENCE METHOD[J]. Acta Physico-Chimica Sinica, 1987, 3(02): 119-122. doi: 10.3866/PKU.WHXB19870203
激光对火焰的诊断
Ⅱ. 激光诱导荧光法对液化石油气/空气火焰中的OH基浓度二维分布的检测
摘要:
通过部份预混的富燃料液化石油气/空气火焰中各部份的OH(A~(2∑~+)←→X ~(2Π))的激光诱导荧光信号进行逐点检测, 获得了OH(X)基在火焰中央纵剖面上精细的二维等浓度线图。OH(X)在外焰边缘上分布最浓, 是自内向外扩散的H原子与O原子相遇而引起反应的结果。同时一部份OH(A)基的生成, 发出了紫外的A→X化学发光, 形成了外焰的轮廓。
English
LASER DIAGNOSTICS FOR FLAMES
Ⅱ. THE TWO-DIMENSIONAL CONCENTRATION DISTRIBUTION OF OH (X) IN A HYDROCARBON/AIR FLAME DETECTED BY LASER INDUCED FLUORESCENCE METHOD
Abstract:
The in-situ, highly spatial resolution, two-dimensional distribution of OH(X) species in a premixed liquified petroleum gas/air flame is reported. The measure- ment was performed by the saturated laser induced fluorescence method with the tran- sitions of OH (A~(2∑~+), v′=0←→X~(2Π), v″=0). The intensities of the broadband emission reflected the local concent ations of OH(X) in the flame.
The result showed that OH(X) populated at the rim of the visual flame.
State-to-state reactions related to OH(X) radical in flame condition are discussed. OH(X) was produced from the oxidation of small hydrogen-containing radicals. The consumption of OH(X) seemed via reaction (10) and (11). The population of OH(A) species is also discussed.
The result showed that OH(X) populated at the rim of the visual flame.
State-to-state reactions related to OH(X) radical in flame condition are discussed. OH(X) was produced from the oxidation of small hydrogen-containing radicals. The consumption of OH(X) seemed via reaction (10) and (11). The population of OH(A) species is also discussed.
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