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Atmospheric pressure microwave plasma torch
2011 Abstracts IEEE International Conference on Plasma Science, 2011An home made atmospheric pressure microwave plasma torch has been built. The plasma discharge has been generated at 2.45 GHz frequency for different powers with argon and helium gases for the different flow rates. Optical emission spectrum of microwave excited discharge will be provided.
F. Bozduman +3 more
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Understanding plasma fluid dynamics inside plasma torches through advanced modeling
2007 16th IEEE International Pulsed Power Conference, 2007The aim of this paper is to investigate the behavior of different types of transferred-arc dual-gas plasma torches used for the cutting of metallic materials by means of a 2-D FLUENT-based numerical model, putting into evidence the physical reasons for the industrial success of various design and process solutions appeared over the last years, such as ...
COLOMBO, VITTORIO +4 more
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Induction-Coupled Plasma Torch
Journal of Applied Physics, 1961A new method of generating a stable plasma at atmospheric pressure using inductive coupling at a frequency of several Mc is described. Methods of starting and operating this plasma in argon, and mixtures of argon with helium, hydrogen, oxygen, and air are discussed.
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Electrode erosion in plasma torches
Plasma Chemistry and Plasma Processing, 1992Cathode erosion rates are reported (or copper electrodes in a simulated plasma torch operating at atmospheric pressure. The are current was 100A (or most experiments; the magnetic field used to move the arc varied between 0.001 and 0.15 T. Different plasma gases were used (Ar, He, air, N2, CO, and mixtures of the noble gases with O2, N2, CO, CH4, Cl2 ...
R. N. Szente, R. J. Munz, M. G. Drouet
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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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1998
The invention relates to a plasma torch system comprising a high-frequency plasma torch with a plasma torch device, wherein a plasma flame can be produced by supplying high-frequency energy, in addition to comprising a processing chamber, wherein workpieces can be positioned in order to enable processing by said plasma flame.
DEUTSCH ZENTR LUFT & RAUMFAHRT +1 more
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The invention relates to a plasma torch system comprising a high-frequency plasma torch with a plasma torch device, wherein a plasma flame can be produced by supplying high-frequency energy, in addition to comprising a processing chamber, wherein workpieces can be positioned in order to enable processing by said plasma flame.
DEUTSCH ZENTR LUFT & RAUMFAHRT +1 more
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2016
The basis of the physical processes in the RF plasma torches and parameters of the RF plasma torches will be considered in this chapter. They are based on the two models—equilibrium and nonequilibrium plasmas, as well as the experimental results.
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The basis of the physical processes in the RF plasma torches and parameters of the RF plasma torches will be considered in this chapter. They are based on the two models—equilibrium and nonequilibrium plasmas, as well as the experimental results.
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Archives of Environmental Health: An International Journal, 1962
R C, GRIMM, H L, KUSNETZ
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R C, GRIMM, H L, KUSNETZ
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2016
This chapter focuses on the theoretical description of the physical processes in the Arc plasma torches with different technological applications. The features of electric Arcs and their models for the study of Arc plasma torches are presented. The need to determine the two-dimensional electromagnetic field, especially in the case of an open free Arc ...
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This chapter focuses on the theoretical description of the physical processes in the Arc plasma torches with different technological applications. The features of electric Arcs and their models for the study of Arc plasma torches are presented. The need to determine the two-dimensional electromagnetic field, especially in the case of an open free Arc ...
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Electrode Phenomena in Plasma Torches
Annals of the New York Academy of Sciences, 1999ABSTRACT: The performance of most plasma generators using electric arcs is determined by the design of the electrodes. While the cathode design is the dominant factor in determining the limitations in torch operating current and power level as well as life between maintenance, the anode design dominates the functional performance for most torches, i.e.
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