LrgpV1, Istex, Corpus, bibRecord, 000501

A new fluorescence method for measuring cross‐fluctuation fo two non‐reactive components in a mixing device

Identifieur interne : 000501 ( Istex/Corpus ); précédent : 000500; suivant : 000502

A new fluorescence method for measuring cross‐fluctuation fo two non‐reactive components in a mixing device

Auteurs : Christophe André ; René David ; Jacques Villermaux ; Jean-Claude André

Source :

Chemical Engineering & Technology [ 0930-7516 ] ; 1992-06.

RBID : ISTEX:E03FA2194B2AA7A9A2B5EE9C2C2FF34713EFB684

English descriptors

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:

https://api.istex.fr/document/E03FA2194B2AA7A9A2B5EE9C2C2FF34713EFB684/fulltext/pdf

DOI: 10.1002/ceat.270150306

Links to Exploration step

ISTEX:E03FA2194B2AA7A9A2B5EE9C2C2FF34713EFB684

Le document en format XML

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<p>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 cm<sup>3</sup>
 well‐stirred tank as a function of location and stirring speed.</p>
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<abstract lang="en">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.</abstract>
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A new fluorescence method for measuring cross‐fluctuation fo two non‐reactive components in a mixing device

A new fluorescence method for measuring cross‐fluctuation fo two non‐reactive components in a mixing device

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