Publication detail

Influence of diaphragm configuration on DC diaphragm discharge breakdown in electrolyte solution

HLAVATÁ, L. HLOCHOVÁ, L. KOZÁKOVÁ, Z. KRČMA, F. GUAITELLA, O.

Original Title

Influence of diaphragm configuration on DC diaphragm discharge breakdown in electrolyte solution

English Title

Influence of diaphragm configuration on DC diaphragm discharge breakdown in electrolyte solution

Type

abstract

Language

en

Original Abstract

This paper deals with generation of diaphragm discharge in water solutions of sodium chloride with fixed conductivity of 275 microS. The photos were recorded by high-speed iCCD camera at defined times synchronized by the current passing through the system. Three different phases current-voltage curve were recognized under all conditions. Only electrolysis proceeds during the first phase at the lowest applied voltage (300 - 1200 V depending on the orifice dimensions), while bubbles were created thanks to the intense Joule heating inside the orifice during the second phase. Finally, the discharge was ignited at applied voltages over 1600 V. These facts were confirmed by iCCD images taken during all three phases. We concluded, by comparing current-voltage characteristics of different orifice diameter sizes, that this parameter had an important influence on the bubbles generation phase. On the contrary, the diaphragm thickness played an important role at the discharge breakdown.

English abstract

This paper deals with generation of diaphragm discharge in water solutions of sodium chloride with fixed conductivity of 275 microS. The photos were recorded by high-speed iCCD camera at defined times synchronized by the current passing through the system. Three different phases current-voltage curve were recognized under all conditions. Only electrolysis proceeds during the first phase at the lowest applied voltage (300 - 1200 V depending on the orifice dimensions), while bubbles were created thanks to the intense Joule heating inside the orifice during the second phase. Finally, the discharge was ignited at applied voltages over 1600 V. These facts were confirmed by iCCD images taken during all three phases. We concluded, by comparing current-voltage characteristics of different orifice diameter sizes, that this parameter had an important influence on the bubbles generation phase. On the contrary, the diaphragm thickness played an important role at the discharge breakdown.

Keywords

diaphragm discharge, bubble generation, ICCD camera, discharge breakdown

Released

30.06.2014

Location

Sofia

Pages from

51

Pages to

51

Pages count

1

BibTex


@misc{BUT109527,
  author="Lucie {Dřímalková} and Lenka {Holíková} and Zdenka {Kozáková} and František {Krčma} and Olivier {Guaitella}",
  title="Influence of diaphragm configuration on DC diaphragm discharge breakdown in electrolyte solution",
  annote="This paper deals with generation of diaphragm discharge in water solutions of sodium chloride with fixed conductivity of 275 microS. The photos were recorded by high-speed iCCD camera at defined times synchronized by the current passing through the system. Three different phases current-voltage curve were recognized under all conditions. Only electrolysis proceeds during the first phase at the lowest applied voltage (300 - 1200 V depending on the orifice dimensions), while bubbles were created thanks to the intense Joule heating inside the orifice during the second phase. Finally, the discharge was ignited at applied voltages over 1600 V. These facts were confirmed by iCCD images taken during all three phases. We concluded, by comparing current-voltage characteristics of different orifice diameter sizes, that this parameter had an important influence on the bubbles generation phase. On the contrary, the diaphragm thickness played an important role at the discharge breakdown.",
  booktitle="6th International Workshop and SummerSchool on Plasma Physics - Book of Abstracts",
  chapter="109527",
  howpublished="print",
  year="2014",
  month="june",
  pages="51--51",
  type="abstract"
}