Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies

The advantages of miniaturized systems and the laminar flow regime that is present in microfluidic channels have opened a new range of applications in which the use of multiple streams with different reagents is exploited. However, further development of these microdevices needs deeper understanding...

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Autores: Gómez Pastora, Jenifer, González Fernández, Cristina, Fallanza Torices, Marcos|||0000-0003-3834-5787, Bringas Elizalde, Eugenio|||0000-0001-8197-6547, Ortiz Uribe, Inmaculada|||0000-0002-3257-4821
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/13517
Acceso en línea:http://hdl.handle.net/10902/13517
Access Level:acceso abierto
Palabra clave:Microfluidics
Multiphase flow
Miscible fluids
Phase separation
Diffusion
Mass transfer
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spelling Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studiesGómez Pastora, JeniferGonzález Fernández, CristinaFallanza Torices, Marcos|||0000-0003-3834-5787Fallanza Torices, Marcos|||0000-0003-3834-5787Bringas Elizalde, Eugenio|||0000-0001-8197-6547Ortiz Uribe, Inmaculada|||0000-0002-3257-4821MicrofluidicsMultiphase flowMiscible fluidsPhase separationDiffusionMass transferThe advantages of miniaturized systems and the laminar flow regime that is present in microfluidic channels have opened a new range of applications in which the use of multiple streams with different reagents is exploited. However, further development of these microdevices needs deeper understanding on the phenomena involved in order to efficiently design such microsystems. In this work, we report the analysis of the solute mass transport performance in Y-Y-shaped microchannels as a function of the coupled influence of both the flow patterns and mass transport kinetics. With this objective, the influence of the following operation variables has been analyzed, the ratio between the residence and diffusion times (γ) and the volumetric ratio between the fluid phases (α), that was determined for three different geometric configurations. The performance of the devices was presented as the solute separation factor in the donor fluid and the concentration factor in the receiving phase. Results showed that the ratio α greatly impacts the solute concentration value reported in both phases for the same γ value, which in turn influences the solute mass flow at the channel outlets. Both the flow patterns and the concentration gradients developed inside the systems were numerically studied by using Computational Fluid Dynamics (CFD) techniques and experimentally analyzed by fluorescence microscopy with fluorescein employed as model solute. This study represents a thorough analysis of the phenomena that determine the performance of the separation of solutes between homogeneous flowing fluids in microdevices where the fluid dynamics are coupled with mass transfer phenomena and facilitates its extension to the general case where separation is enhanced by chemical reactions.Financial support from the Spanish Ministry of Economy and Competitiveness under the projects CTQ2015-72364-EXP/AEI and CTQ2015-66078-R (MINECO/FEDER) is gratefully acknowledged. Jenifer Gómez-Pastora also thanks the FPI postgraduate research grant (BES2013-064415). Cristina González-Fernández thanks the Concepción Arenal postgraduate research grant from the University of Cantabria.ElsevierUniversidad de Cantabria20182018-07-15journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/13517Chemical Engineering Journal, 2018, 344, 487-497reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/135172026-06-02T12:39:31Z
dc.title.none.fl_str_mv Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies
title Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies
spellingShingle Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies
Gómez Pastora, Jenifer
Microfluidics
Multiphase flow
Miscible fluids
Phase separation
Diffusion
Mass transfer
title_short Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies
title_full Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies
title_fullStr Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies
title_full_unstemmed Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies
title_sort Flow patterns and mass transfer performance of miscible liquid-liquid flows in various microchannels: Numerical and experimental studies
dc.creator.none.fl_str_mv Gómez Pastora, Jenifer
González Fernández, Cristina
Fallanza Torices, Marcos|||0000-0003-3834-5787
Fallanza Torices, Marcos|||0000-0003-3834-5787
Bringas Elizalde, Eugenio|||0000-0001-8197-6547
Ortiz Uribe, Inmaculada|||0000-0002-3257-4821
author Gómez Pastora, Jenifer
author_facet Gómez Pastora, Jenifer
González Fernández, Cristina
Fallanza Torices, Marcos|||0000-0003-3834-5787
Bringas Elizalde, Eugenio|||0000-0001-8197-6547
Ortiz Uribe, Inmaculada|||0000-0002-3257-4821
author_role author
author2 González Fernández, Cristina
Fallanza Torices, Marcos|||0000-0003-3834-5787
Bringas Elizalde, Eugenio|||0000-0001-8197-6547
Ortiz Uribe, Inmaculada|||0000-0002-3257-4821
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Microfluidics
Multiphase flow
Miscible fluids
Phase separation
Diffusion
Mass transfer
topic Microfluidics
Multiphase flow
Miscible fluids
Phase separation
Diffusion
Mass transfer
description The advantages of miniaturized systems and the laminar flow regime that is present in microfluidic channels have opened a new range of applications in which the use of multiple streams with different reagents is exploited. However, further development of these microdevices needs deeper understanding on the phenomena involved in order to efficiently design such microsystems. In this work, we report the analysis of the solute mass transport performance in Y-Y-shaped microchannels as a function of the coupled influence of both the flow patterns and mass transport kinetics. With this objective, the influence of the following operation variables has been analyzed, the ratio between the residence and diffusion times (γ) and the volumetric ratio between the fluid phases (α), that was determined for three different geometric configurations. The performance of the devices was presented as the solute separation factor in the donor fluid and the concentration factor in the receiving phase. Results showed that the ratio α greatly impacts the solute concentration value reported in both phases for the same γ value, which in turn influences the solute mass flow at the channel outlets. Both the flow patterns and the concentration gradients developed inside the systems were numerically studied by using Computational Fluid Dynamics (CFD) techniques and experimentally analyzed by fluorescence microscopy with fluorescein employed as model solute. This study represents a thorough analysis of the phenomena that determine the performance of the separation of solutes between homogeneous flowing fluids in microdevices where the fluid dynamics are coupled with mass transfer phenomena and facilitates its extension to the general case where separation is enhanced by chemical reactions.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-07-15
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/13517
url http://hdl.handle.net/10902/13517
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Chemical Engineering Journal, 2018, 344, 487-497
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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