Liquid droplet dispersion in an insulating fluid by EHD techniques

Author

He, W. ; Chang, J.S. ; Baird, M.H.I.

Author_Institution

McMaster Univ., Hamilton, Ont., Canada

fYear

1990

fDate

10-14 Sep 1990

Firstpage

291

Lastpage

295

Abstract

The behavior of water droplets in an insulating liquid under the influence of electrohydrodynamic forces was experimentally investigated. Diameters and velocities of distilled water drops under both DC and pulse electric field have been measured in a rectangular cell arranged 3 degrees inclined from horizontal. For the system of distilled water dispersed in a viscous oil, uniformly spherical drops can be formed at a single stainless steel nozzle. It is shown that the droplet size could be reduced and the droplet initial velocity could be increased significantly under the influence of the EHD forces. The effect of applied pulsed electric field on the droplet formation and its subsequent motion is greater, for a given voltage, than that of DC electric field

Keywords

drops; electrohydrodynamics; insulating oils; EHD techniques; distilled water; droplet initial velocity; droplet size; insulating fluid; pulse electric field; rectangular cell; uniformly spherical drops; viscous oil; water droplets; Chemicals; Dielectric liquids; Dispersion; Electric resistance; Electrodes; Helium; Insulation; Petroleum; Production; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Dielectric Liquids, 1990. ICDL 1990. Conference Record., 10th International Conference on

Conference_Location

Grenoble

Type

conf

DOI

10.1109/ICDL.1990.202909

Filename

202909