Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/62743
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | May Masnou, Anna | - |
dc.contributor.author | Ribó i Besolí, Jordi | - |
dc.contributor.author | Porras Rodríguez, Montserrat | - |
dc.contributor.author | Maestro Garriga, Alicia | - |
dc.contributor.author | González Azón, María del Carmen | - |
dc.contributor.author | Gutiérrez González, José María, 1953- | - |
dc.date.accessioned | 2015-02-11T08:08:39Z | - |
dc.date.available | 2015-02-11T08:08:39Z | - |
dc.date.issued | 2014 | - |
dc.identifier.issn | 0009-2509 | - |
dc.identifier.uri | http://hdl.handle.net/2445/62743 | - |
dc.description.abstract | We examine the scale invariants in the preparation of highly concentrated w/o emulsions at different scales and in varying conditions. The emulsions are characterized using rheological parameters, owing to their highly elastic behavior. We first construct and validate empirical models to describe the rheological properties. These models yield a reasonable prediction of experimental data. We then build an empirical scale-up model, to predict the preparation and composition conditions that have to be kept constant at each scale to prepare the same emulsion. For this purpose, three preparation scales with geometric similarity are used. The parameter N¿D^α, as a function of the stirring rate N, the scale (D, impeller diameter) and the exponent α (calculated empirically from the regression of all the experiments in the three scales), is defined as the scale invariant that needs to be optimized, once the dispersed phase of the emulsion, the surfactant concentration, and the dispersed phase addition time are set. As far as we know, no other study has obtained a scale invariant factor N¿Dα for the preparation of highly concentrated emulsions prepared at three different scales, which covers all three scales, different addition times and surfactant concentrations. The power law exponent obtained seems to indicate that the scale-up criterion for this system is the power input per unit volume (P/V). | - |
dc.format.extent | 30 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier Ltd | - |
dc.relation.isformatof | Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.ces.2014.03.004 | - |
dc.relation.ispartof | Chemical Engineering Science, 2014, vol. 111, p. 410-420 | - |
dc.relation.uri | http://dx.doi.org/10.1016/j.ces.2014.03.004 | - |
dc.rights | (c) Elsevier Ltd, 2014 | - |
dc.source | Articles publicats en revistes (Enginyeria Química i Química Analítica) | - |
dc.subject.classification | Reologia | - |
dc.subject.classification | Emulsions | - |
dc.subject.classification | Enginyeria química | - |
dc.subject.classification | Similitud (Geometria) | - |
dc.subject.other | Rheology | - |
dc.subject.other | Emulsions | - |
dc.subject.other | Chemical engineering | - |
dc.title | Scale-up model obtained from the rheological analysis of highly concentrated emulsions prepared at three scales | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 646607 | - |
dc.date.updated | 2015-02-11T08:08:40Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Enginyeria Química i Química Analítica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
646607.pdf | 1.41 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.