Motion, deformation and break-up of aqueous drops in oils under high electric field strengths

Chemical Engineering and Processing

Volumn 42, Issue 4, 2003, Pages 259-272

  Eow, John S ^a,b   Ghadiri, Mojtaba ^b  

^a UNIVERSITY OF SURREY   (United Kingdom)

^b UNIVERSITY OF LEEDS   (United Kingdom)

Author keywords

Calibration oil; Drop deformation; Drop generation; Electrostatic fields; Emulsification; Palm oil; Sunflower Oil; Water in oil emulsion; Weber

Indexed keywords

DROP FORMATION; ELECTRIC FIELD EFFECTS; ELECTROSTATICS; OILS AND FATS;

ELECTROCOALESCENCE;

DROP BREAKUP;

DEFORMATION; ELECTROSTATIC FIELD; OIL-WATER EMULSION; VELOCITY;

EID: 0037374684     PISSN: 02552701     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0255-2701(02)00036-3     Document Type: Article

References (57)

1. Hsu E.C., Li N.N. Membrane recovery in liquid membrane separation processes. Sep. Sci. Tech. 20:(2 and 3):1985;115-130.
2. Tsouris C., Shin W.T., Yiacoumi S. Pumping, spraying, and mixing of fluids by electric fields. Can. J. Chem. Eng. 76:1998;589-599.
3. Speranza A., Ghadiri M., Newman M., Osseo L.S., Ferrari G. Electro-spraying of a highly conductive and viscous liquid. J. Electrostatic. 51-52:2001;494-501.
4. F.G. Cottrell, Process for separating and collecting particles of one liquid suspended in another liquid, US Patent 987114, (1911).
5. F.G. Cottrell, J.B. Speed, Separating and collecting particles of one liquid suspended in another liquid, US Patent 98711521, (1911).
6. Eow J.S., Ghadiri M., Sharif A.O., Williams T.J. Electrostatic enhancement of coalescence of water droplets in oil: a review of the current understanding. Chem. Eng. J. 84:(3):2001;173-192.
7. J.S. Eow, M.Ghadiri, A.O. Sharif, Electrostatic and hydrodynamic separation of drops in a flowing viscous liquid, Chem. Eng. Processing (2002) in press.
8. Hughes J.F., Pavey I.D. Electrostatic emulsification. J. Electrostatic. 10:1981;45-55.
9. Sato M., Hatori T., Saito M. Experimental investigation of droplet formation mechanisms by electrostatic dispersion in a liquid-liquid system. IEEE Trans. Ind. Appl. 33:(6):1997;1527-1534.
10. Chang L.E., Berg J.C. Fluid flow and transfer behaviour of a drop translating in an electric field at intermediate Reynolds numbers. Int. J. Heat Mass. Trans. 26:1983;823-832.
11. Jog M.A., Hader M.A. Transient heat transfer to a spheroidal liquid drop suspended in an electric field. Int. J. Heat Fluid Flow. 18:1997;411-418.
12. Macky W.A. Some investigations on the deformation and breaking of water drops in strong electric fields. Proc. Roy. Soc. A. 133:1931;565-587.
13. Miksis M.J. Shape of a drop in an electric field. Phys. Fluids. 24:(11):1981;1967-1972.
14. Vizika O., Saville D.A. The electrohydrodynamic deformation of drops suspended in liquids in steady and oscillatory electric fields. J. Fluid Mech. 239:1992;1-21.
15. Melcher J.R., Taylor G.I. Electrohydrodynamics: a review of the role of interfacial shear stresses. Ann. Rev. Fluid Mech. 1:1969;111-146.
16. Taylor G.I. The formation of emulsions in definable fields of flow. Proc. Roy. Soc. (London) A. 146:1934;501-523.
17. Tomotika S. Breaking up of a drop of viscous liquid immersed in another viscous fluid which is extending at a uniform rate. Proc. Roy. Soc. (London) A. 153:1936;302-318.
18. Hinze J.O. Fundamentals of the hydrodynamic mechanism of splitting in dispersion processes. AIChE J. 1:(3):1955;289-295.
19. Clayton W. The theory of emulsions and their technical treatment. fifth ed. 1954;J & A Churchill Ltd, London.
20. Isaacs E.E., Chow R.S. Practical aspects of emulsion stability. Adv. Chem. Series. 231:1992;251-277.
21. Khayat R.E., Luciani A., Utracki L.A., Godbille F., Picot J. Influence of shear and elongation on drop deformation in convergent-divergent flows. Int. J. Multiphase Flow. 26:2000;17-44.
22. Taylor G.I. Studies in electrohydrodynamics 1. The circulation produced in a drop by an electric field. Proc. Royal Soc. A. 291:1966;159-166.
23. Nishiwaki T., Adachi K., Kotaka T. Deformation of viscous droplets in an electric field: poly(propylene oxide)/poly(dimethylsilone) systems. Langmuir. 4:1988;170-175.
24. Feng J.Q., Scott T.C. A computational analysis of electrohydrodynamics of a leaky dielectric drop in an electric field. J. Fluid Mech. 311:1996;289-326.
25. Sherwood J.D. Breakup of fluid droplets in electric and magnetic fields. J. Fluid Mech. 188:1988;133-146.
26. Allan R.S., Mason S.G. Particle motions in sheared suspensions: XIV. Coalescence of liquid drops in electric and shear fields. J. Colloid Sci. 17:1962;383-408.
27. Torza S., Cox R.G., Mason S.G. Electrohydrodynamic deformation and burst of liquid drops. Phil. Trans. R. Soc. London A. 269:1971;295-319.
28. O'Konski C.T., Harris F.E. Electric free energy and the deformation of droplets in electrically conducting systems. J. Phys. Chem. 61:1957;1172.
29. Chang L.E., Carleson T.E., Berg J.C. Heat and mass transfer to a translating drop in an electric field. Int. J. Heat Mass. Trans. 25:1982;1023-1030.
30. Stewart M.B., Morrison F.A. Small Reynolds number electro-hydrodynamic flow around drops and the resulting deformation. J. Appl. Mech. 46:1979;510-512.
31. Tsukada T., Mayama J., Sato M., Hozawa M. Theoretical and experimental studies on the behavior of a compound drop under a uniform d.c. electric field. J. Chem. Eng. Jpn. 30:(2):1997;215-222.
32. Tsukada T., Katayama T., Ito Y., Hozawa M. Theoretical and experimental studies of circulations inside and outside a deformed drop under a uniform electric field. J. Chem. Eng. Jpn. 26:1993;698-703.
33. Tsukada T., Yamamoto Y., Katayama T., Hozawa M. Effect of an electric field on the behaviour of a drop moving in a quiescent liquid. J. Chem. Eng. Jpn. 27:1994;662-666.
34. Brandenberger H., Nussli D., Piech V., Widmer F. Monodisperse particle production: a method to prevent drop coalescence using electrostatic forces. J. Electrostatic. 45:1999;227-238.
35. Taylor G.I. Disintegration of water drops in an electric field. Proc. Roy. Soc. (London) A. 280:1964;383-397.
36. Khayat R.E., Luciani A., Utracki L.A. Boundary-element analysis of planar drop deformation in confined flow. Part 1. Newtonian fluids. Eng. Anal. Boundary Elements. 19:1997;279-289.
37. Antonoff, Russian J. Phys. Chem. Soc. 39:1907;342.
38. Reynolds W.C. On the interfacial tension. Part 2. The relation between interfacial and surface tension in sundry organic solvents in contact with aqueous solutions. J. Chem. Soc. 119:1921;466.
39. Pound J.R. J. Chem. Soc. 123:1923;578.
40. Woodman R.M. On the causes of solubility: surface forces in a system constituting a pair of partly miscible liquids. J. Phys. Chem. 31:1927;1742-1745.
41. Nellensteyn and Roodenburg, Kolloid-Z, 63 (1933) 339.
42. Girifalco L.A., Good R.J. J. Phys. Chem. 61:1957;904.
43. Fowkes F.M. Determination of interfacial tensions, contact angles, and dispersion forces in surfaces by assuming additivity of intermolecular interactions in surfaces. J. Phys. Chem. 66:1962;382.
44. T.J. Williams, The resolution of water-in-oil emulsions by the application of an external electric field, PhD Thesis, University of Southampton (1989).
45. Rosenkilde C.E. A dielectric fluid drop in an electric field. Proc. Roy. Soc. A. 312:1969;473-494.
46. Wilson C.T.R., Taylor G.I. The bursting of soap-bubbles in a uniform electric field. Proc. Camb. Phil. Soc. 22:1925;728-730.
47. Lebedev N.N., Skal'skaya I.P. Force acting on a conducting sphere in the field of a parallel plate condenser. Sov. Phys. -Tech. Phys. 7:(3):1962;268-270.
48. Cho A.Y.H. Contact charging of micron-sized particles in intense electric fields. J. Appl. Phys. 35:(9):1964;2561-2564.
49. Geankoplis C.J. Transport Processes and Unit Operations. third ed. 1993;Prentice Hall, New Jersey.
50. Bird R.B., Stewart W.E., Lightfoot E.N. Transport Phenomena. 1960;Wiley, New York.
51. Clift R., Grace J.R., Weber M.E. Bubbles Drops and Particles. 1978;Academic Press, New York.
52. W. Rybczynski, Uber die fortschreitende bewegung einer flussigen kugel in einem zahen medium, Bull. Acad. Sci. Cracovie, A (1911) 40.
53. Hadamard J.S. Mouvement permenent lent d'une sphere liquide et visqueuse dans un liquide visqueux. C.R. Acad. Sci. Paris. 152:1911;1735.
54. Sherman P. Emulsion Science. 1968;Academic Press, London.
55. Becher P. Emulsions: Theory and Practice. second ed. 1977;Krieger, New York.
56. Frumpkin A.N., Levich V.G. Zhur Fiz Khim. 21:1947;1183.
57. Vygovski V.P., Mansurov K.I., Sidurin Y.V., Shutova Z.M. Influence of charge relaxation on movement of water drops in weakly conducting media. Khimiya i Technologiya Topliv i Masel. 8:1980;18-20.