Gas-liquid mass transfer intensification for bubble generation and breakup in micronozzles

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dc.contributor.authorReichmann, Felix
dc.contributor.authorHerath, Jakob
dc.contributor.authorMensing, Lena
dc.contributor.authorKockmann, Norbert
dc.date.accessioned2022-04-26T13:16:53Z
dc.date.available2022-04-26T13:16:53Z
dc.date.issued2021-06-14
dc.description.abstractThe local gas-liquid mass transfer was characterized during bubble generation in T-contactors and in an adjacent micronozzle. A colorimetric technique with the oxygen sensitive dye resazurin was investigated to visualize gas-liquid mass transfer during slug flow, bubble deformation, as well as laminar and turbulent bubble breakup in the wake of a micronozzle. Two optimized nozzle geometries from previous studies were evaluated concerning volumetric mass transfer coefficients for low pressure loss, narrow residence time distribution, or high dispersion rates. Highest values in kla up to 60 s−1 were found for turbulent bubble breakup and an optimized micronozzle design in respect to pressure drop and dispersion rate. The achieved mass transfer coefficients were correlated with the energy dissipation rate within the micronozzles and with the inverse Kolmogorov time scale in vortex dissipation in good agreement for laminar and turbulent breakup regimes.en
dc.identifier.urihttp://hdl.handle.net/2003/40879
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-22736
dc.language.isoende
dc.relation.ispartofseriesJournal of flow chemistry;Vol. 11. 2021, issue 3, pp 429–444
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGas-liquid mass transferen
dc.subjectMicronozzleen
dc.subjectBubble breakupen
dc.subjectResazurin oxidationen
dc.subject.ddc660
dc.titleGas-liquid mass transfer intensification for bubble generation and breakup in micronozzlesen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationJournal of flow chemistry. Vol. 11. 2021, Issue 3, pp 429-444en
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1007/s41981-021-00180-3de

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