Title :
Spatial and temporal distributions of ozone after a wire-to-plate streamer discharge
Author :
Hegeler, F. ; Akiyama, H.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Kumamoto Univ., Japan
fDate :
June 29 1997-July 2 1997
Abstract :
A UV absorption technique is used to investigate the spatial and temporal distributions of ozone after a positive streamer discharge in air at atmospheric pressure. The discharge apparatus consists of a 45 cm long wire-to-plate configuration with an electrode gap distance of 2.5 cm. Results show an average ozone density of about 5/spl middot/10/sup 15/ cm/sup -3/ in an area of 2 mm/sup 2/ just below the positive electrode after application of a voltage pulse with an amplitude of 65 kV and a duration of 80 ns. Towards the cathode, the ozone density decreases rapidly. The ozone diffusion coefficient ranges from below 0.3 cm/sup 2//s to about 0.6 cm/sup 2//s, indicating a spatial and temporal distribution of the gas temperature throughout the discharge gap as well.
Keywords :
diffusion; discharges (electric); electrodes; ozone; spectrochemical analysis; temperature distribution; ultraviolet spectra; 2.5 cm; 45 cm; 65 kV; 80 ns; UV absorption technique; atmospheric pressure; average ozone density; cathode; electrode gap distance; gas temperature distribution; ozone; ozone absorption measurements; ozone diffusion coefficient; positive streamer discharge; spatial distribution; temporal distribution; wire-to-plate configuration; wire-to-plate streamer discharge; Apertures; Cathodes; Dielectric measurements; Electrodes; Electromagnetic wave absorption; Lenses; Pulse measurements; Voltage; Wastewater treatment; Wire;
Conference_Titel :
Pulsed Power Conference, 1997. Digest of Technical Papers. 1997 11th IEEE International
Conference_Location :
Baltimore, MA, USA
Print_ISBN :
0-7803-4213-5
DOI :
10.1109/PPC.1997.674541
