Discharge ignition in the diaphragm configuration supplied by DC non-pulsing voltage

5th International Workshop & Summer School on Plasma Physics 2012

Hlochová, L.^1 ; Hlavatá, L.^1 ; Kozáková, Z.^1 ; Krma, F.^1

Faculty of Chemistry, Brno University of Technology, Purkyova 118, Brno

612 00, Czech Republic^1

关键词: DC voltage;    Different sizes;    Electric power;    Electrical characteristic;    Electrolyte solutions;    Experimental conditions;    ICCD cameras;    Water solutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/715/1/012007/pdf
DOI  :  10.1088/1742-6596/715/1/012007

来源: IOP

【 摘 要 】

This work deals with the ignition of the discharge in the diaphragm configuration generated in water solutions containing supporting NaCl electrolyte. The reactor has volume of 110 ml and it is made of polycarbonate. HV electrodes made of stainless steel are placed in this reactor. Ceramic (Shapal-MTM) diaphragm is placed in the barrier separating the cathode and the anode space. An electric power source supplies the reactor by constant DC voltage up to 4 kV and electric current up to 300 mA. The discharge ignition is compared in the reactor with different sizes of diaphragms. Measurements are carried out in electrolyte solutions with the same conductivity. Images of plasma streamers and bubble formation are taken by an ICCD camera iStar 734. Electrical characteristics are measured by an oscilloscope LeCroy LT 374 L in order to determine breakdown moments at different experimental conditions.