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arXiv physics/0410267physics.plasm-ph
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横向电弧放电中atmospheric pressure空气射流等离子体的光谱

Spectroscopic of atmospheric pressure air jet plasma in transverses arc discharge

Valeriy Chernyak, Vadym Naumov, Vitaliy Yukhimenko

摘要:

对高压直流电弧横向连续放电中的大气压空气射流等离子体进行了光谱表征。在200至1100 nm波长的光谱内,监测到所有显著的发射,并识别出N、O、H的所有激发原子线和NO、N2、O2、OH、CO、CN的分子带。利用分析CuI谱线510.5,515.3,521.8nm(电极发射产物)和N22 + -体系337.1nm(等离子体形成气体的主要成分)谱带的相对强度,测定了自由原子的电子激发温度Texc和分子振动和转动态的激发温度TV和TR.结果发现,在这种电弧放电空气等离子体的空间/时间演化过程中,没有本地LTE,和强烈的非zothermality的影响有一个地方在这种情况下。

英文摘要:

Spectroscopic characterization of a specific case of the atmospheric pressure air jet plasma in the transverse cw dc arc discharge of high voltage was done. Within the spectrum of wavelengths from 200 to 1100 nm all remarkable emissions were monitored, and all excited atomic lines of N, O, H and molecular bands of NO, N2, O2, OH, CO, CN were identified. Using relative intensities of analytical CuI lines 510.5, 515.3, 521.8 nm (the product of electrode emission) and N2 2+ -system band at 337.1 nm (the dominating component of plasma-forming gas), the temperature of electronic excitation of free atoms, Texc, and the temperatures of excitation of vibrational and rotational states of molecules, TV and TR, were determined. It was found that there is no local LTE in this arc discharge air plasma during its space/time evolution, and effects of strong non-izothermality have a place in this case.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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