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 430930
Title Suspension separation with deterministic ratchets at moderate Reynolds numbers
Author(s) Lubbersen, Y.S.; Schutyser, M.A.I.; Boom, R.M.
Source Chemical Engineering Science 73 (2012). - ISSN 0009-2509 - p. 314 - 320.
DOI http://dx.doi.org/10.1016/j.ces.2012.02.002
Department(s) Food Process Engineering
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) lateral displacement - fractionation - arrays
Abstract Deterministicratchets were evaluated in this study as continuous separation devices for suspensions. Compared to conventional microfluidic ratchets (gap width ˜10 µm), ratchet designs in this study were 70 times larger. Apart from the hydrodynamic regime (21), which lead to additional displacement. Furthermore, there was a maximum concentration of particles in the device above which the separation decreased, e.g., 12 v/v% for a design with cylindrical-shaped obstacles. The high suspension concentrations did not lead to blockage of the device and were much higher compared to concentrations normally achieved for membrane separations. The up-scaled deterministicratchets show potential for fractionation. Particles above a critical particle size were better separated than particles below that critical particle size.
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