GENERATION OF A LOW-FREQUENCY INDUCTIVE DISCHARGE AT ATMOSPHERIC PRESSURE

This paper describes an inductive discharge with ferromagnetic enhancement of magnetic coupling between an inductor and a discharge, generated at atmospheric pressure of plasma forming gas. It is shown that amplifying a magnetic flux that connects the inductor and the plasma makes it possible to eff...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 2021-07, Vol.62 (4), p.593-599
Main Authors: Isupov, M. V., Litvintsev, A. Yu
Format: Article
Language:English
Subjects:
Applications of Mathematics
Argon
Atmospheric pressure
Classical and Continuum Physics
Classical Mechanics
Electric field strength
Electrodeless discharges
Ferromagnetism
Flow velocity
Fluid- and Aerodynamics
Inductively coupled plasma
Magnetic flux
Mathematical Modeling and Industrial Mathematics
Mechanical Engineering
Physics
Physics and Astronomy
Plasma
Thermodynamic efficiency
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Summary:This paper describes an inductive discharge with ferromagnetic enhancement of magnetic coupling between an inductor and a discharge, generated at atmospheric pressure of plasma forming gas. It is shown that amplifying a magnetic flux that connects the inductor and the plasma makes it possible to efficiently generate an electrodeless discharge in a low-frequency (10–100 kHz) range and greatly simplifies the use of the inductively coupled plasma. This study also presents new experimental data on the dependence of the electric field strength and the thermal efficiency of a low-frequency induction discharge of atmospheric pressure on the discharge current strength and the flow rate of a plasma-forming gas (argon or air). It is shown how a low-frequency inductive discharge maintenance criterion is related to its thermal efficiency, and methods for reducing the heat losses of a low-frequency inductive discharge of atmospheric pressure are analyzed.
ISSN:0021-8944
1573-8620
DOI:10.1134/S0021894421040088