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Breakup and aggregation in turbulently stirred vessels
ETH, Inst Chem & Bioengn, Dept Chem & Appl Biosci.ORCID iD: 0000-0001-7995-3151
2009 (English)In: 13th European Conference on Mixing, 2009Conference paper (Refereed)
Abstract [en]

The breakup and aggregation of small solid particle aggregates in hetero-geneous °ows is modeled through a multizonal population balance model. Breakupand aggregation are described through comprehensive rate expressions that takeinto account the local properties of the turbulent °ow. Two approaches are pursuedto de¯ne the zones: in the ¯rst approach the zones are prede¯ned and computational°uid dynamics is used to compute the zone properties. In the second approach thezone properties are directly ¯tted to experimental data. Model results compare wellwith experiments for the aggregation of a polystyrene latex in a stirred tank evenwhen only two zones are used.

Place, publisher, year, edition, pages
Keyword [en]
Breakage, aggregation, population balance equation, zone model, macromixing
National Category
Chemical Process Engineering
URN: urn:nbn:se:kth:diva-87965OAI: diva2:502044
13th European Conference on Mixing. London, UK. 14-17 April 2009
QC 20120510Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2012-05-10Bibliographically approved

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Bäbler, Matthäus
Chemical Process Engineering

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