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rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
2009-6-30
pubmed:abstractText
Microchannel emulsification is an interfacial tension driven method to produce monodisperse microdroplets, or microspheres. In this paper we introduce a model for describing the dynamics of microchannel emulsification based on simple time dependent geometric shape analysis. The model is based on mechanistic principles that simultaneously predicts both process and microchannel geometry effects. The model contains no adjustable (fit) parameters and is thus fully predictive for oil in water emulsification. The model is easy to use and does not require extensive computational time and/or memory. The model was validated by comparison with the experimental results published by Sugiura and co-workers and we found excellent agreement. It was found that the droplet size of oil in water emulsions could be fully predicted using only two dimensionless numbers, an adapted capillary number that also comprises effects of terrace width and height, and the ratio of terrace length over terrace height. Based on these findings, a dimensionless design map could be constructed for a wide range of process conditions and microchannel dimensions.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jul
pubmed:issn
0743-7463
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
7320-7
pubmed:year
2009
pubmed:articleTitle
A geometric model for the dynamics of microchannel emulsification.
pubmed:affiliation
Wageningen University, Department of Agrotechnology and Food Sciences, Food Process Engineering Group, Bomenweg 2, 6700 EV Wageningen, The Netherlands.
pubmed:publicationType
Journal Article