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Mathematical Simulation of Processes in Air ICP/RF Plasma Torch for High-Power Applications
IEEE Transactions on Plasma Science, 2020This article presents the results of the mathematical simulation of processes in air ICP/RF plasma torch for high-power applications. This investigation is a part of a wide research focused on estimation and reduction of nonuniformity of plasma ...
D. Ivanov, S. Zverev
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Supersonic Flow Ignition by Plasma Torch and H2/O2 Torch
Journal of Propulsion and Power, 2004The effectiveness of an H 2 /O 2 torch igniter, which injects H 2 /O 2 combustion gas, and a plasma torch igniter in promoting ignition of an H 2 /air mixture within a supersonic combustor was investigated analytically and experimentally. First, bulk temperature and bulk radical concentration in an O 2 plasma torch igniter were estimated by ...
Kan Kobayashi +2 more
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Plasma torch igniter for scramjets
Journal of Propulsion and Power, 1989A small, uncooled plasma torch was developed and used in combination with an injector designed to study ignition and flameholding in hydrogen-fueled supersonic flows. The plasma torch was operated on mixtures of hydrogen and argon with total flows of 10 to 70 scfh.
G. Burton Northam +3 more
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Attenuation of microwaves by plasma torches
ICOPS 2000. IEEE Conference Record - Abstracts. 27th IEEE International Conference on Plasma Science (Cat. No.00CH37087), 2002Summary form only given. An experiment has been conducted in a rectangular waveguide to study the effectiveness of plasma torches on microwave absorption. Three torch modules are mounted on the bottom wall of a rectangular X-band waveguide (1 in./spl times/2 in.), so that the plasma produced by the torch crosses the path of propagation of the microwave
Spencer Kuo, Daniel Bivolaru
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FROM TRANSFERRED ARC TO PLASMA TORCHES
High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes), 2005Thermal plasma generated either by transferred arc or by plasma torches are involved in many industrial processes including, for example, cutting, welding, powder synthesis or coating elaboration by plasma spray techniques. The common feature is that electrical energy is converted into thermal energy, which must be transferred differently following the
Coudert, Jean-François +3 more
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IEEE Transactions on Plasma Science, 1989
With acetone as a catalyst in an argon discharge plasma, it is observed that localized high-density anode spots can be formed at sharp edges in the plasma. By placing the sharp edge on top of a small permanent magnet, the current which is attracted to the spot can locally burn a piece of metal beneath the sharp edge.
Jamie L. Cooney +7 more
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With acetone as a catalyst in an argon discharge plasma, it is observed that localized high-density anode spots can be formed at sharp edges in the plasma. By placing the sharp edge on top of a small permanent magnet, the current which is attracted to the spot can locally burn a piece of metal beneath the sharp edge.
Jamie L. Cooney +7 more
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Plasma Chemistry and Plasma Processing, 2017
Numerical modelling of physical properties and processes in an electric arc stabilized by a water vortex (steam torch) has been summarized in this review paper. One-fluid MHD equations are numerically solved for an axisymmetric thermal plasma flow inside a discharge chamber of the steam plasma torch.
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Numerical modelling of physical properties and processes in an electric arc stabilized by a water vortex (steam torch) has been summarized in this review paper. One-fluid MHD equations are numerically solved for an axisymmetric thermal plasma flow inside a discharge chamber of the steam plasma torch.
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Arcs, plasma torches and applications
IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340), 2003Summary form only given, as follows. The applications of arcs and plasma torches can be roughly classified in two domains: electrical engineering and thermal (or chemical) processes. In the first category we can consider circuit-breakers, arc lamps and some aspects concerning lightning. In the second category, we can distinguish metallurgical processes
Jean-Jacques Gonzalez +2 more
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Ion implantation for plasma torches
Vacuum, 2002Abstract It has been shown before that the erosion of a cathode is related to the condition of its surface, particularly with respect to its composition. The composition of the surface seems to affect different parameters, including the work function of the surface.
R.N. Szente, I.R. Jankov, I.D. Goldman
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Thermal Flow Characteristics of the Triple Plasma Torch System for Nanoparticle Synthesis
IEEE Transactions on Plasma Science, 2019Triple dc plasma torch system was used for the synthesis of nanoparticles. Three thermal plasma jets are ejected from each plasma torch and they are merged into a strong single plasma plume. Since the feedstock is injected into the jet merging area, this
Tae-Hee Kim +4 more
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