Publicou 4 edições por ano
ISSN Imprimir: 1093-3611
ISSN On-line: 1940-4360
Indexed in
PARAMETRIC STUDY OF HYBRID ARGON-WATER STABILIZED ARC UNDER SUBSONIC AND SUPERSONIC REGIMES
RESUMO
Numerical investigation of characteristics and processes in the worldwide unique type of thermal plasma generator with combined stabilization of arc by argon flow and water vortex, the so-called hybrid arc, has been carried out. The aim of this paper is a numerical study of characteristics and processes in the hybrid arc under both subsonic plasma flow regime and transonic and supersonic flow regimes at high currents and argon mass flow rates at atmospheric pressure. The partial characteristics method for radiation loss from the arc is employed. Results carried out for 300−600 A and for argon mass flow rates of 22.5−32.5 slm (standard litre per minute) proved that structure of plasma flow and temperature field can be subsonic or supersonic depending on the operating conditions: a transonic flow occurs for currents 400−500 A, a supersonic one appears for 600 A in the central regions of the discharge.
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JENIŠTA Jirí, TAKANA Hidemasa, NISHIYAMA Hideya, BARTLOVÁ Milada, AUBRECHT Vladimír, KRENEK Petr, The Influence of Turbulence on Characteristics of a Hybrid-Stabilized Argon-Water Electric Arc, Journal of Thermal Science and Technology, 8, 2, 2013. Crossref
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GALALY Ahmed Rida, VAN OOST Guido, Fast inactivation of microbes and degradation of organic compounds dissolved in water by thermal plasma, Plasma Science and Technology, 20, 8, 2018. Crossref
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Jeništa J, Takana H, Uehara S, Nishiyama H, Bartlová M, Aubrecht V, Murphy A B, Modeling of inhomogeneous mixing of plasma species in argon–steam arc discharge, Journal of Physics D: Applied Physics, 51, 4, 2018. Crossref
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Jeništa Jiří, Takana Hidemasa, Nishiyama Hideya, Bartlová Milada, Aubrecht Vladimír, Murphy Anthony B., Modelling of inhomogeneous mixing of plasma species in argon–steam arc discharge for broad range of operating conditions, The European Physical Journal D, 74, 2, 2020. Crossref
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Jeništa Jiří, Chau Shiu-Wu, Chien Sheng-Wei, Živný Oldřich, Takana Hidemasa, Nishiyama Hideya, Bartlová Milada, Aubrecht Vladimír, Murphy Anthony B, Modeling of argon–steam thermal plasma flow for abatement of fluorinated compounds, Journal of Physics D: Applied Physics, 55, 37, 2022. Crossref