STUDYING THE PROCESS OF WATER EVAPORATION WITH OF CASTOR OIL IN ELECTRIC FIELD OF MULTI-ELECTRODE SYSTEMS

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
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Keyword(s):  
Electric Field ◽  
Castor Oil ◽  
Water Evaporation ◽  
Electrode Systems

Breakups of an encapsulated surfactant-laden aqueous droplet under a DC electric field

Soft Matter ◽  
2019 ◽  
Vol 15 (43) ◽  
pp. 8905-8911 ◽  
Author(s):  
Muhammad Salman Abbasi ◽  
Ryungeun Song ◽  
Jinkee Lee
Keyword(s):  
Electric Field ◽  
Castor Oil ◽  
Silicone Oil ◽  
Double Emulsion ◽  
Emulsion Droplet ◽  
Dc Electric Field ◽  
Aqueous Droplet

We study the breakups of a surfactant-laden aqueous/silicone oil/castor oil double emulsion droplet under an electric field.

Discharge Criterion along the Surface of Solid Dielectric in SF6 under High Pressure

2014 ◽  
Vol 548-549 ◽  
pp. 21-24 ◽  
Author(s):  
Daniil A. Glushkov ◽  
Alexandra I. Khalyasmaa
Keyword(s):  
High Pressure ◽  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Dielectric Surface ◽  
Field Configuration ◽  
Solid Dielectric ◽  
Discharge Criterion ◽  
Sulphur Hexafluoride ◽  
Electrode Systems

This article is devoted to the formation of a mechanism of discharge along the surface of a dielectric in sulphur hexafluoride electrode systems in different configurations. The article also addresses to the calculation of the electric field distribution and criteria for increase of discharge along the dielectric surface, depending on the field configuration, pressure and heights.

scholarly journals Promotion and Restraint Phenomena of Water Evaporation by Electric Field

2003 ◽  
Vol 123 (11) ◽  
pp. 1421-1422
Author(s):  
Shunji Kawamoto ◽  
Ryo Yamachi
Keyword(s):  
Electric Field ◽  
Water Evaporation

STUDY OF THE PROCESS OF EVAPORATION OF WATER FROM CASTOR OIL IN AN ELECTRIC FIELD

2019 ◽  
Vol 19 (2) ◽  
pp. 216-221
Author(s):  
І.П. Назаренко ◽  
◽  
О.І. Лобода ◽  
О.В. Діденко ◽  
С.В. Дубініна ◽  
...  
Keyword(s):  
Electric Field ◽  
Castor Oil

Breakup and non-coalescence mechanism of aqueous droplets suspended in castor oil under electric field

2019 ◽  
Vol 878 ◽  
pp. 820-833 ◽  
Author(s):  
Subhankar Roy ◽  
Vikky Anand ◽  
Rochish M. Thaokar
Keyword(s):  
Electric Field ◽  
Numerical Simulations ◽  
Castor Oil ◽  
Integral Method ◽  
Physical Mechanism ◽  
Boundary Integral ◽  
Boundary Integral Method ◽  
Insulating Oil ◽  
Pressure Profiles ◽  
Maxwell Stresses

The effect of an electric field on the coalescence of two water droplets suspended in an insulating oil (castor oil) in the non-coalescence regime is investigated. Unlike the immediate breakup of the bridge, as reported in earlier studies, e.g. Ristenpart et al. (Nature, vol. 461 (7262), 2009, pp. 377–380), the non-coalescence observed in our experiments indicate that at strong fields the droplets exhibit a tendency to coalesce, the intervening bridge thickens whereafter the bridge dramatically begins to thin, initiating non-coalescence. Numerical simulations using the boundary integral method are able to explain the physical mechanism of thickening of this bridge followed by thinning and non-coalescence. The underlying reason is the competing meridional and azimuthal curvatures which affect the pressure inside the bridge to become either positive or negative under the effect of electric field induced Maxwell stresses. Velocity and pressure profiles confirm this hypothesis and we are able to predict this behaviour of transitory coalescence followed by non-coalescence.

Investigation of EHD-Enhanced Water Evaporation and a Novel Empirical Model

2011 ◽  
Vol 7 (2) ◽  
Author(s):  
De-Jiang Zheng ◽  
Yong-Qiang Cheng ◽  
Hong-Jiang Liu ◽  
Li-Te Li
Keyword(s):  
Electric Field ◽  
Empirical Model ◽  
Evaporation Rate ◽  
Single Point ◽  
Radial Distance ◽  
Water Evaporation ◽  
Electrode Gap ◽  
Dependence Relation ◽  
Plane Electrode ◽  
Point Electrode

This paper investigates the relationship between the enhanced evaporation rate by electric field, applied voltage (U) and electrode gap (d) in electrohydrodynamics-enhanced water evaporation. The electric fields produced by a single point-to-plane electrode configuration are used. In our experiments, the enhanced evaporation rate by electric field has shown increasing linearly with the U/d ratio. As regard the evaporation rate distribution on the plane electrode, the maximum evaporation rate is observed at the center of the plane (i.e., directly under the point electrode), and significantly decreased while the radial distance (i.e., radial distance from the point electrode centerline) increases. The evaporation rate is inversely proportional to the radial distance. A novel empirical model based on the dependence relation between the evaporation rate, U/d ratio and radial distance was developed. The model and the experimental results agree well.

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