Number of the records: 1
Parametric Study of Hybrid Argon-Water Stabilized Electric Arc under Subsonic and Supersonic Regimes
- 1.
SYSNO ASEP 0334892 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Parametric Study of Hybrid Argon-Water Stabilized Electric Arc under Subsonic and Supersonic Regimes Title Parametrická studie oblouku ve směsi argonu a vodních par s hybridní stabilizací při subsonických a supersonických režimech proudění Author(s) Jeništa, Jiří (UFP-V) RID, ORCID
Hrabovský, Milan (UFP-V) RID
Nishiyama, H. (JP)
Takana, H. (JP)
Bartlová, M. (CZ)
Aubrecht, V. (CZ)Source Title High Temperature Materials and Processes - ISSN 1093-3611
Roč. 14, č. 1 (2010), s. 63-76Number of pages 15 s. Language eng - English Country US - United States Keywords argon mass flow rate ; divergence of radiation flux ; partial characteristics ; reabsorption ; shock diamonds ; water plasma torch Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GA202/08/1084 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000277865400006 EID SCOPUS 77952574818 Annotation 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. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
Number of the records: 1