We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Investigation of droplet pairs' movement under the electric field generated by matrix electrodes.
- Authors
Huang, Lingbo; Chen, Ling; OuYang, Ping; Ren, Boping; Jia, Yanyan
- Abstract
Electric dehydration technology has gained lots of attention as an oil-water separation technology that has only been around for a short time. Many research scholars have studied the laws of droplet motion in electric fields. However, previous research on the droplet motion law in a non-uniform electric field has only focused on the single droplet, ignoring the dipole-dipole interaction between droplets, which plays an important role in the droplet coalescence process. In this paper, the motion of droplet pairs in a non-uniform matrix electric field is studied by means of theoretical analysis and numerical simulation. A mathematical model of the migration velocity and coalescence time of droplet pairs was established. The results show that the migration velocity of droplet pairs under dielectrophoresis and dipole-dipole interactions is significantly greater than that of single droplets and that the droplet velocity is related to the electric field strength, continuous phase viscosity, droplet diameter, and droplet pair center distance. This study increases our understanding of droplet electrocoalescence kinetics, enriches the electrocoalescence mechanism of droplets under non-uniform electric fields, and provides a basis for the design of subsequent electrodehydration equipment. [Display omitted] • Theoretical and numerical analysis of droplet pair motion law under non-uniform electric field. • The expressions of migration velocity and coalescence time of droplet pair are proposed. • The mechanism of droplet electrocoalescence under non-uniform electric field is supplemented.
- Subjects
ELECTRIC fields; SEPARATION (Technology); LEGAL motions; NUMERICAL analysis; ELECTRODES; DIPOLE-dipole interactions
- Publication
Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers Part A, 2023, Vol 193, p420
- ISSN
0263-8762
- Publication type
Article
- DOI
10.1016/j.cherd.2023.03.054