Experimental Study of Heating of a Liquid Cathode and Transfer of Its Components into the Gas Phase under the Action of a DC Discharge

Journal Article · Sun Apr 15 04:00:00 EDT 2018 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X18040086· OSTI ID:22763277

Sirotkin, N. A.

An atmospheric-pressure dc discharge in air (i = 10–50 mA) with metal and liquid electrolyte electrodes was studied experimentally. An aqueous solution of sodium chloride (0.5 mol/L) was used as the cathode or anode. The electric field strength in the plasma and the cathode (anode) voltage drops were obtained from the measured dependences of the discharge voltage on the electrode gap length. The gas temperature was deduced from the spectral distribution of nitrogen emission in the band N{sub 2}(C{sup 3}Π{sub u} → B{sup 3}Π{sub g}, 0–2). The time dependences of the temperatures of the liquid electrolyte electrodes during the discharge and in its afterglow, as well as the evaporation rate of the solution, were determined experimentally. The contributions of ion bombardment and heat flux from the plasma to the heating of the liquid electrode and transfer of solvent (water) into the gas phase are discussed using the experimental data obtained.

• OSTI ID: 22763277
• Journal Information: Plasma Physics Reports, Journal Name: Plasma Physics Reports Journal Issue: 4 Vol. 44; ISSN PPHREM; ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANODES
AQUEOUS SOLUTIONS
ATMOSPHERIC PRESSURE
CATHODES
ELECTRIC DISCHARGES
ELECTRIC FIELDS
ELECTROLYTES
ION BEAMS
PLASMA
SODIUM CHLORIDES