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Generation of ozone by pulsed corona discharge over water surface in hybrid gas-liquid electrical discharge reactor
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SYSNO ASEP 0025649 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Generation of ozone by pulsed corona discharge over water surface in hybrid gas-liquid electrical discharge reactor Title Generace ozonu pulsním elektrickým výbojem nad vodní hladinou v hybridním reaktoru Author(s) Lukeš, Petr (UFP-V) RID, ORCID
Člupek, Martin (UFP-V) RID
Babický, Václav (UFP-V) RID
Šunka, Pavel (UFP-V) RID
Janda, V. (CZ)Source Title Journal of Physics D-Applied Physics. - : Institute of Physics Publishing - ISSN 0022-3727
Roč. 38, č. 3 (2005), s. 409-416Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords Corona discharge ; hybrid reactor ; ozone ; water treatment Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GA202/02/1026 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20430508 - UFP-V (2005-2011) Annotation Ozone formation by pulse positive corona discharge generated in the gas phase between a planar high voltage electrode made from reticulated vitreous carbon and the water surface with an immersed ground stainless steel plate electrode was investigated under various operating conditions. The effects of gas flow rate (0.5-3 l min-1), discharge gap spacing (2.5-10 mm), applied input power (2-45 W), and gas composition (oxygen containing argon or nitrogen) on ozone production were determined. Ozone concentration increased with increasing power input and with increasing discharge gap. The production of ozone was significantly affected by the presence of water vapor formed through the vaporization of water at the gas-liquid interface by the action of the gas phase discharge. The highest energy efficiency for ozone production was obtained using high voltage pulses of approximately 150 ns duration in Ar/O2 mixtures with the maximum efficiency (energy yield) of 23 g kWh-1 for 40% argon content. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2006
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