A new fluorescence method for measuring cross‐fluctuation fo two non‐reactive components in a mixing device
Identifieur interne : 003139 ( Main/Merge ); précédent : 003138; suivant : 003140A new fluorescence method for measuring cross‐fluctuation fo two non‐reactive components in a mixing device
Auteurs : Christophe André [France] ; René David [France] ; Jacques Villermaux [France] ; Jean-Claude André [France]Source :
- Chemical Engineering & Technology [ 0930-7516 ] ; 1992-06.
Descripteurs français
- Wicri :
- topic : Conférence européenne.
English descriptors
- KwdEn :
- Batch tank, Chem, Concentration fluctuations, European conference, Feed streams, Feed tubes, Fluctuation, Fluorescein, Fluorescence intensity, Fluorescence quencher, Fluorescent species, Fluorescent tracer, Gaskey, Incident beam, Industrial crystallization, Injection tubes, Ionic strength, Laser, Local concentrations, Local fluorescence intensity, Measurement point, Measurement points, Proc, Pure water, Quencher, Segregation index, Space times, Technol, Tracer, Various points, Villermaux.
- Teeft :
- Batch tank, Chem, Concentration fluctuations, European conference, Feed streams, Feed tubes, Fluctuation, Fluorescein, Fluorescence intensity, Fluorescence quencher, Fluorescent species, Fluorescent tracer, Gaskey, Incident beam, Industrial crystallization, Injection tubes, Ionic strength, Laser, Local concentrations, Local fluorescence intensity, Measurement point, Measurement points, Proc, Pure water, Quencher, Segregation index, Space times, Technol, Tracer, Various points, Villermaux.
Abstract
A novel method for measuring local deviations from perfect mixing of two non‐reative tracers is presented. It is based on the partially quenched fluorescence of one fluorescent tracer by a second tracer. When the concentration fluctuations are small, the deviation from the linear behaviour yields the cross‐correlation of the fluctuating components of the concentrations of both traces from an – easy to record – average value of fluorescence intensity obtained in the focus of a laser beam. The method was proven to be suitable for measuring these quantities in a 1125 cm3 well‐stirred tank as a function of location and stirring speed.
Url:
DOI: 10.1002/ceat.270150306
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ISTEX:E03FA2194B2AA7A9A2B5EE9C2C2FF34713EFB684Le document en format XML
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type="city">Nancy</settlement></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Chemical Engineering & Technology</title><title level="j" type="alt">CHEMICAL ENGINEERING TECHNOLOGY CET</title><idno type="ISSN">0930-7516</idno><idno type="eISSN">1521-4125</idno><imprint><biblScope unit="vol">15</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="182">182</biblScope><biblScope unit="page" to="185">185</biblScope><biblScope unit="page-count">4</biblScope><publisher>WILEY‐VCH Verlag</publisher><pubPlace>Weinheim</pubPlace><date type="published" when="1992-06">1992-06</date></imprint><idno type="ISSN">0930-7516</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0930-7516</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Batch tank</term><term>Chem</term><term>Concentration fluctuations</term><term>European conference</term><term>Feed 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intensity</term><term>Fluorescence quencher</term><term>Fluorescent species</term><term>Fluorescent tracer</term><term>Gaskey</term><term>Incident beam</term><term>Industrial crystallization</term><term>Injection tubes</term><term>Ionic strength</term><term>Laser</term><term>Local concentrations</term><term>Local fluorescence intensity</term><term>Measurement point</term><term>Measurement points</term><term>Proc</term><term>Pure water</term><term>Quencher</term><term>Segregation index</term><term>Space times</term><term>Technol</term><term>Tracer</term><term>Various points</term><term>Villermaux</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Conférence européenne</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A novel method for measuring local deviations from perfect mixing of two non‐reative tracers is presented. 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