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Article

Short Communications
2022. V. 60. № 4. P. 570–573
Khafizov A.A., Valiev R.I., Bagautdinova L.N., Gaisin Az.F., Gaisin Al.F., Gaisin F.M., Son E.E., Fakhrutdinova I.T.
AC electric discharge in a 1% sodium chloride solution in distilled water at low pressures
Annotation
The results of an experimental study of an alternating current discharge with a frequency of 50 Hz in a gas-liquid medium of a 1% of NaCl solution in distilled water with air bubbles and microdischarges inside a dielectric tube with a diameter of 10 mm at reduced pressures for various interelectrode distances of copper electrodes—50, 100, and 150 mm—are presented. A qualitative mechanism for the development of a breakdown and discharge at low pressures in a gas-liquid medium is established. It is found that with a decrease in pressure, a gas-liquid medium is formed, saturated with small air bubbles ranging in size from 1 to 3 mm as a result of boiling and electrolysis. This, in turn, leads to a breakdown and rapid discharge ignition in a porous medium near a solid electrode. The transition of an electric discharge with microdischarges to a volumetric discharge at low pressures is established. A fast Fourier transform was carried out, and the discharge voltage and current spectra were determined at reduced pressures.
Article reference:
Khafizov A.A., Valiev R.I., Bagautdinova L.N., Gaisin Az.F., Gaisin Al.F., Gaisin F.M., Son E.E., Fakhrutdinova I.T. AC electric discharge in a 1% sodium chloride solution in distilled water at low pressures, High Temp., 2022. V. 60. № 4. P. 570