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dc.contributor.author
dos Santos, Elena C.
dc.contributor.author
Ładosz, Agnieszka
dc.contributor.author
Maggioni, Giovanni
dc.contributor.author
Rudolf von Rohr, Philipp
dc.contributor.author
Mazzotti, Marco
dc.date.accessioned
2018-10-17T08:56:52Z
dc.date.available
2018-10-13T09:45:01Z
dc.date.available
2018-10-17T08:56:52Z
dc.date.issued
2018-10
dc.identifier.issn
0263-8762
dc.identifier.issn
1744-3563
dc.identifier.other
10.1016/j.cherd.2018.09.001
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/295679
dc.identifier.doi
10.3929/ethz-b-000295679
dc.description.abstract
We characterize shapes and volumes of droplets generated in PDMS T-junctions and assess the use of this type of microfluidic device to generate droplets suitable for the study of nucleation. Water droplets were formed in oil in a PDMS T-junction and subsequently stored. Droplet volume reproducibility and stability were investigated from acquired micrographs. By theoretically analyzing the influence of the mean volume of a population of droplets on the estimation of nucleation rates, we have shown that deviations in mean volumes can seriously affect the estimates, unless such deviation is smaller than 10%. This condition is fulfilled if experiments are repeated using the same microdevice. Measured droplet polydispersity remained low enough to treat the droplets as monodisperse. Immersing the microdevice in a water bath mitigates solvent evaporation, and allows for very accurate temperature control. Finally, a screening procedure was used to select the ideal operating conditions to obtain droplets with the desired sizes. Applying this method in devices with increasing T-junction cross sectional area, we have demonstrated a scaling-up of droplet volumes close to an order of magnitude while tuning the droplet shape, i.e., the average length to width ratio, at values between 1 and 1.2.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
T-junction
en_US
dc.subject
Droplet volume
en_US
dc.subject
Droplet shape
en_US
dc.subject
Reproducibility
en_US
dc.subject
Evaporation
en_US
dc.subject
Nucleation
en_US
dc.title
Characterization of shapes and volumes of droplets generated in PDMS T-junctions to study nucleation
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2018-09-08
ethz.journal.title
Chemical Engineering Research & Design
ethz.journal.volume
138
en_US
ethz.pages.start
444
en_US
ethz.pages.end
457
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Development of phase change emulsion systems for thermal energy storage
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02629 - Institut für Verfahrenstechnik / Institute of Process Engineering::03348 - Rudolf von Rohr, Philipp (emeritus) / Rudolf von Rohr, Philipp (emeritus)
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02629 - Institut für Verfahrenstechnik / Institute of Process Engineering::03484 - Mazzotti, Marco / Mazzotti, Marco
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02629 - Institut für Verfahrenstechnik / Institute of Process Engineering::03348 - Rudolf von Rohr, Philipp (emeritus) / Rudolf von Rohr, Philipp (emeritus)
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02629 - Institut für Verfahrenstechnik / Institute of Process Engineering::03484 - Mazzotti, Marco / Mazzotti, Marco
ethz.grant.agreementno
146662
ethz.grant.agreementno
146662
ethz.grant.fundername
SNF
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)
ethz.grant.program
Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)
ethz.date.deposited
2018-10-13T09:45:12Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2018-10-17T08:56:58Z
ethz.rosetta.lastUpdated
2019-02-03T08:25:13Z
ethz.rosetta.versionExported
true
ethz.COinS
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