Title :
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
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;
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
DOI :
10.1109/ICDL.1999.798953
