Stability of a magnetized Hall plasma discharge

2001 ◽  
Vol 89 (6) ◽  
pp. 3099-3107 ◽  
Author(s):  
E. Chesta ◽  
N. B. Meezan ◽  
M. A. Cappelli
Keyword(s):  
Plasma Discharge ◽  
Hall Plasma

Resistive instability in a Hall plasma discharge under ionization effect

2013 ◽  
Vol 20 (5) ◽  
pp. 052115 ◽  
Author(s):  
Hitendra K. Malik ◽  
Sukhmander Singh
Keyword(s):  
Plasma Discharge ◽  
Ionization Effect ◽  
Hall Plasma

POSITIVE COLUMN CONSTRICTION IN CESIUM PLASMA DISCHARGE

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-137-C7-138
Author(s):  
G. Musa ◽  
A. Popescu ◽  
N. Niculescu
Keyword(s):  
Positive Column ◽  
Plasma Discharge ◽  
Cesium Plasma

REDUCED MODEL OF PLASMA DISCHARGE CONTROL IN TOKAMAK WITH IRON CORE

2020 ◽  
Vol 7 (3) ◽  
pp. 11-22
Author(s):  
VALERY ANDREEV ◽  
◽  
ALEXANDER POPOV
Keyword(s):  
Optimal Control ◽  
Inverse Problem ◽  
Optimal Control Problem ◽  
Control Problem ◽  
Nonlinear Behavior ◽  
Plasma Discharge ◽  
Reduced Model ◽  
Iron Core ◽  
Power Sources ◽  
Real Power

A reduced model has been developed to describe the time evolution of a discharge in an iron core tokamak, taking into account the nonlinear behavior of the ferromagnetic during the discharge. The calculation of the discharge scenario and program regime in the tokamak is formulated as an inverse problem - the optimal control problem. The methods for solving the problem are compared and the analysis of the correctness and stability of the control problem is carried out. A model of “quasi-optimal” control is proposed, which allows one to take into account real power sources. The discharge scenarios are calculated for the T-15 tokamak with an iron core.

SYNTHESIS OF HYDROGEN IN ACOUSTOPLASMA DISCHARGE IN A LIQUID-PHASE STREAM

2019 ◽  
pp. 42-48 ◽  
Author(s):  
N. A. Bulychev
Keyword(s):  
Liquid Phase ◽  
Organic Compounds ◽  
Electrode Materials ◽  
Solid Phase ◽  
Plasma Discharge ◽  
Raw Material ◽  
Two Phase ◽  
Reduced Pressure ◽  
External Power Source ◽  
Phase Medium

In this paper, the plasma discharge in a high-pressure fluid stream in order to produce gaseous hydrogen was studied. Methods and equipment have been developed for the excitation of a plasma discharge in a stream of liquid medium. The fluid flow under excessive pressure is directed to a hydrodynamic emitter located at the reactor inlet where a supersonic two-phase vapor-liquid flow under reduced pressure is formed in the liquid due to the pressure drop and decrease in the flow enthalpy. Electrodes are located in the reactor where an electric field is created using an external power source (the strength of the field exceeds the breakdown threshold of this two-phase medium) leading to theinitiation of a low-temperature glow quasi-stationary plasma discharge.A theoretical estimation of the parameters of this type of discharge has been carried out. It is shown that the lowtemperature plasma initiated under the flow conditions of a liquid-phase medium in the discharge gap between the electrodes can effectively decompose the hydrogen-containing molecules of organic compounds in a liquid with the formation of gaseous products where the content of hydrogen is more than 90%. In the process simulation, theoretical calculations of the voltage and discharge current were also made which are in good agreement with the experimental data. The reaction unit used in the experiments was of a volume of 50 ml and reaction capacity appeared to be about 1.5 liters of hydrogen per minute when using a mixture of oxygen-containing organic compounds as a raw material. During their decomposition in plasma, solid-phase products are also formed in insignificant amounts: carbon nanoparticles and oxide nanoparticles of discharge electrode materials.

Modeling of the electrogun metal vapor plasma discharge

1996 ◽  
Author(s):  
Laxminarayan Raja ◽  
Philip Varghese ◽  
Dennis Wilson
Keyword(s):  
Metal Vapor ◽  
Plasma Discharge ◽  
Metal Vapor Plasma
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