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Possibilities and Limits of Application of Electrical Resistance Tomography in Hydrodynamics of Bubble Columns
Author(s) -
Toye Dominique,
Fransolet Emmanuelle,
Simon Daniel,
Crine Michel,
L'Homme Guy,
Marchot Pierre
Publication year - 2005
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450830103
Subject(s) - physics , humanities , pixel , geometry , optics , mathematics , art
Abstract Knowing the hydrodynamic regime in which is working a bubble column is of great importance because the regime affects strongly the mass transfer between the phases. To this end, we examine the potentialities of an Electrical Resistance Tomography (ERT) device. We analyse cross correlation of electrode pair measurements, of neighbouring pixels and power spectra of averaged pixels within a single plane as well as cross correlations of averaged pixels between two planes, without finding a clear signature of the churn turbulent flow. Variable gas flow rate inputs are used to determine the time resolution of the ERT.