Experimental study of heat transfer in a glow discharge

The article is devoted to the experimental study of heat transfer in a glow discharge. The longitudinal discharge was ignited in a stream of air moving in a cylindrical discharge chamber (DC). Copper electrodes were located at a distance of 9 cm from each other perpendicular to the axis of the DC. T...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-11, Vol.927 (1), p.12076
Main Authors: Yunusov, R F, Garipov, M M
Format: Article
Language:English
Subjects:
Air flow
Current voltage characteristics
Cylindrical chambers
Flow velocity
Gas pressure
Glow discharges
Heat transfer
Neutral particles
Physics
Temperature distribution
Thermocouples
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Summary:The article is devoted to the experimental study of heat transfer in a glow discharge. The longitudinal discharge was ignited in a stream of air moving in a cylindrical discharge chamber (DC). Copper electrodes were located at a distance of 9 cm from each other perpendicular to the axis of the DC. The gas pressure P = (2 - 9) kPa and its flow rate G = (0 - 0.035) g / s were monitored. The discharge current and voltage varied accordingly in the ranges: I = (30-80) mA, U = (1-2) kV. Falling current-voltage characteristics were observed. The temperature of the neutral particles was measured using chromel-alumel thermocouples located along the DC in three sections. The location of the thermocouples made it possible to measure the temperature distribution both along the DC and across it. The discharge shape was monitored photographically and visually. It was found that with an air flow rate G = 0.017 g / s, the discharge loses its axial symmetry and contracts to the wall of the DC. The temperature field of neutral particles also changes significantly.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/927/1/012076