Generation of bubbles in liquid argon and nitrogen in divergent electric fields

Author

Denat, A. ; Jomni, F. ; Aitken, F. ; Bonifaci, N.

Author_Institution

Lab. d´´Electrostat. et de Mater. Dielectr. Univ. Joseph Fourier, Grenoble, France

fYear

1999

fDate

1999

Firstpage

384

Lastpage

387

Abstract

In this paper, we present an experimental study of high field conduction phenomena in liquid argon and liquid nitrogen in a point-plane electrode geometry. These liquids behave qualitatively like saturated hydrocarbons except when they are studied close to their normal boiling point. The generation and dynamics of microscopic bubbles as a function of various parameters (nature of the liquid, injected energy and hydrostatic pressure) are presented and discussed. The possible influence of these phenomena on electrical insulation at cryogenic temperatures is also discussed

Keywords

argon; boiling point; bubbles; dielectric liquids; electrical conductivity; electrohydrodynamics; high field effects; insulating materials; low-temperature techniques; nitrogen; two-phase flow; Ar; N₂; boiling point; bubbles; cryogenic temperatures; divergent electric fields; electrical insulation; high field conduction phenomena; hydrostatic pressure; liquid argon; liquid nitrogen; microscopic bubbles; point-plane electrode geometry; saturated hydrocarbons; Argon; Cryogenics; Dielectrics and electrical insulation; Electrodes; Geometry; Hydrocarbons; Liquids; Microscopy; Nitrogen; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 1999. (ICDL '99) Proceedings of the 1999 IEEE 13th International Conference on

Conference_Location

Nara

Print_ISBN

0-7803-4759-5

Type

conf

DOI

10.1109/ICDL.1999.798953

Filename

798953