Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 109629
Title Process fundamentals of membrane emulsification : simulation with CFD
Author(s) Abrahamse, A.J.; Padt, A. van der; Boom, R.M.; Heij, W.B.C. de
Source AIChE Journal 47 (2001)6. - ISSN 0001-1541 - p. 1285 - 1291.
Department(s) Agrotechnological Research Institute
Sub-department of Food and Bioprocess Engineering
Publication type Refereed Article in a scientific journal
Publication year 2001
Abstract Membrane emulsification is a process in which a to-be-dispersed phase is pressed through a membrane; the droplets formed are carried away with the continuous phase. To design a suitable membrane setup, more insight into the formation of the droplets at the membrane surface is needed. Therefore, the formation of one droplet from a cylindrical pore was calculated using computational fluid dynamics. From the resulting droplet diameter (33 m; pore diameter, 5 m) and the calculated droplet shape, the maximum membrane porosity was calculated to be 1.5°to prevent coalescence of droplets growing on neighboring pores. Due to the deformation of the droplet and the formation of the neck, the pressure drop over the pore and the velocity of oil in the pore varied in time. During necking, the velocity in the pore decreased sharply. After detachment of the first droplet, no satellite droplets were formed, but a small oil volume remained attached at the pore, forming a new droplet.
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