Plasma Parameters of a Gliding Arc Jet at Atmospheric Pressure Obtained by a Line-Ratio Method

LI Hui (李辉); XIE Mingfeng (谢铭丰)

doi:10.1088/1009-0630/15/8/11

Plasma Science and Technology > 2013 > 15(8): 776-779. > DOI: 10.1088/1009-0630/15/8/11

LI Hui (李辉), XIE Mingfeng (谢铭丰). Plasma Parameters of a Gliding Arc Jet at Atmospheric Pressure Obtained by a Line-Ratio Method[J]. Plasma Science and Technology, 2013, 15(8): 776-779. DOI: 10.1088/1009-0630/15/8/11

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Plasma Parameters of a Gliding Arc Jet at Atmospheric Pressure Obtained by a Line-Ratio Method

1 Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China 2 National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

Funds: supported by National Natural Science Foundation of China (Nos. 10975136, 11035005) and USTC-NSRL Association Funding of China (No. KY2090130001)

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Received Date: May 17, 2012

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Abstract

Abstract

A generator of the gliding arc jet (GAJ), which is driven by a transverse magnetic field, is developed to produce non-equilibrium plasma at atmospheric pressure. The gas tempera- ture is estimated using the spectrum of OH radicals to be about 2400±400 K. The determinations of electron temperature and electron density by using a line-ratio method are elaborated for the gliding arc jet plasma. This line-ratio method is based on a collisional-radiative model. The experiment results show that electron temperature is about 1.0 eV and electron density is about 6.9x10¹⁴ cm^-3. Obviously, the plasma of GAJ is in a non-equilibrium state.
- GAJ,
- line-ratio method,
- collisional-radiative model (CRM)

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