Počet záznamů: 1
Effects of pulse frequency of input power on the physical and chemical properties of pulsed streamer discharge plasmas in water
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SYSNO ASEP 0421971 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Effects of pulse frequency of input power on the physical and chemical properties of pulsed streamer discharge plasmas in water Tvůrce(i) Ruma, Ruma. (JP)
Lukeš, Petr (UFP-V) RID, ORCID
Aoki, N. (JP)
Doležalová, Eva (UFP-V) RID
Hosseini, S.H.R. (JP)
Sakugawa, T. (JP)
Akiyama, H. (JP)Zdroj.dok. Journal of Physics D-Applied Physics. - : Institute of Physics Publishing - ISSN 0022-3727
Roč. 46, č. 12 (2013), s. 125202-125202Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova discharge in water ; pulsed power ; pulse frequency ; hydrogen peroxide ; organic dye ; bacteria ; generator ; liquids Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEP GD104/09/H080 GA ČR - Grantová agentura ČR Institucionální podpora UFP-V - RVO:61389021 UT WOS 000315413600016 EID SCOPUS 84874528034 DOI 10.1088/0022-3727/46/12/125202 Anotace Positive high-voltage pulses of 20 kV with repetition rates of up to 1 kHz were used to generate discharge in water using point-to-plane electrode geometry.By varying the pulse repetition rate, two distinct modes of discharge plasma were formed in water. The first was characterized by the formation of corona-like discharge propagating through the water in the form of streamer channels.The second mode was formed typically above 500 Hz, when the formation of streamer channels in water was suppressed and all plasma occurred inside a spheroidal aggregate of very fine gas bubbles surrounding the tip of the high-voltage electrode.The production of H2O2, degradation of organic dye Acid Orange 7, and inactivation of bacteria E. coli by the discharge were determined under different plasma modes in dependence with the pulse repetition rate.The efficiency of both chemical and biocidal processes induced by plasma in water decreased significantly using pulse repetition rates above 500 Hz. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2014
Počet záznamů: 1