New calibration methods for accurate electrical capacitance tomography measurements in particulate-fluid systems / Hadi Bashar in Industrial & engineering chemistry research, Vol. 48 N°1 (Janvier 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N°1 (Janvier 2009) . - P. 274-280 Titre : New calibration methods for accurate electrical capacitance tomography measurements in particulate-fluid systems Type de document : texte imprimé Auteurs : Hadi Bashar, Éditeur scientifique ; Franco Berruti, Éditeur scientifique ; Cedric Briens, Éditeur scientifique Année de publication : 2009 Article en page(s) : P. 274-280 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Tomography measurements (ECT) Electrical capacitance Résumé : Three different calibration techniques have been developed to greatly improve the accuracy of the solid holdup distributions obtained from electrical capacitance tomography (ECT) measurements. First, liquid mixtures are used to calibrate the ECT system. Second, the relative permittivity of solid particles is obtained by immersing the solids in different fluids: the solid relative permittivity corresponds to the point where the fluid relative permittivity matches the relative permittivity of the liquid−solid mixture. Third, the best relationship between solid holdup and electrical permittivity, over the required range of solid concentrations, is determined, for each particulate system, by suspending the particles in a viscous liquid honey. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800292d [article] New calibration methods for accurate electrical capacitance tomography measurements in particulate-fluid systems [texte imprimé] / Hadi Bashar, Éditeur scientifique ; Franco Berruti, Éditeur scientifique ; Cedric Briens, Éditeur scientifique . - 2009 . - P. 274-280. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°1 (Janvier 2009) . - P. 274-280 Mots-clés : Tomography measurements (ECT) Electrical capacitance Résumé : Three different calibration techniques have been developed to greatly improve the accuracy of the solid holdup distributions obtained from electrical capacitance tomography (ECT) measurements. First, liquid mixtures are used to calibrate the ECT system. Second, the relative permittivity of solid particles is obtained by immersing the solids in different fluids: the solid relative permittivity corresponds to the point where the fluid relative permittivity matches the relative permittivity of the liquid−solid mixture. Third, the best relationship between solid holdup and electrical permittivity, over the required range of solid concentrations, is determined, for each particulate system, by suspending the particles in a viscous liquid honey. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800292d

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