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Dual emission LIF technique for pH and concentration field measurement around a rising bubble.

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Title: Dual emission LIF technique for pH and concentration field measurement around a rising bubble.
Authors: Kong, G.1, Buist, K.A.1 K.A.Buist@tue.nl, Peters, E.A.J.F.1, Kuipers, J.A.M.1
Source: Experimental Thermal & Fluid Science. May2018, Vol. 93, p186-194. 9p.
Subjects: Bubble dynamics, Laser-induced fluorescence, pH effect, Mass transfer, Multiphase flow, Computational fluid dynamics, Mathematical models
Abstract: Mass transfer plays an important role in chemical engineering applications involving multiphase systems. Several techniques have been developed in the field to measure the global mass concentration in multiphase chemical reactors. However, because of the complexity of multiphase processes, only few techniques are able to provide local and quantitative information. In this study a dual-emission Laser Induced Fluorescent technique (LIF) has been developed to locally measure the mass transfer of a rising CO 2 bubble in a quiescent fluid. Details of the pH field with an overall precision of ± 0.04 pH units, dissolved CO 2 concentration, and the mass transfer evolution in the bubble wake can now be measured quantitatively. It is capable to provide quantitative comparison with simulation results and as such experimental validation of multiphase CFD models. [ABSTRACT FROM AUTHOR]
Copyright of Experimental Thermal & Fluid Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 127963258
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: <searchLink fieldCode="JN" term="%22Experimental+Thermal+%26+Fluid+Science%22">Experimental Thermal & Fluid Science</searchLink>. May2018, Vol. 93, p186-194. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Bubble+dynamics%22">Bubble dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Laser-induced+fluorescence%22">Laser-induced fluorescence</searchLink><br /><searchLink fieldCode="DE" term="%22pH+effect%22">pH effect</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+transfer%22">Mass transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Multiphase+flow%22">Multiphase flow</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+models%22">Mathematical models</searchLink>
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  Data: Mass transfer plays an important role in chemical engineering applications involving multiphase systems. Several techniques have been developed in the field to measure the global mass concentration in multiphase chemical reactors. However, because of the complexity of multiphase processes, only few techniques are able to provide local and quantitative information. In this study a dual-emission Laser Induced Fluorescent technique (LIF) has been developed to locally measure the mass transfer of a rising CO 2 bubble in a quiescent fluid. Details of the pH field with an overall precision of ± 0.04 pH units, dissolved CO 2 concentration, and the mass transfer evolution in the bubble wake can now be measured quantitatively. It is capable to provide quantitative comparison with simulation results and as such experimental validation of multiphase CFD models. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Experimental Thermal & Fluid Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.expthermflusci.2017.12.032
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      – Code: eng
        Text: English
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        PageCount: 9
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    Subjects:
      – SubjectFull: Bubble dynamics
        Type: general
      – SubjectFull: Laser-induced fluorescence
        Type: general
      – SubjectFull: pH effect
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      – SubjectFull: Mass transfer
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      – SubjectFull: Multiphase flow
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      – SubjectFull: Computational fluid dynamics
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      – SubjectFull: Mathematical models
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      – TitleFull: Dual emission LIF technique for pH and concentration field measurement around a rising bubble.
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              Text: May2018
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