This article addresses the characterization of dispersion and homogenization phenomena in stirred vessels through the analysis of dispersion curves that can be obtained experimentally by means of conductivity measurements. New insights on mixing conditions can be achieved from the analysis of the qualitative and asymptotic properties of tracer dispersion curves. The results obtained are interpreted in the context of the spectral approach to the advention-diffusion equation. It is shown that any flow model aimed at reproducing the experimentally determined dispersion curves must be at least two-dimensional. Convention-enhanced dispersion associated with the spectral structure of the advection-diffusion equation is addressed.

Tracer dispersion in stirred tank reactors: Asymptotic properties and mixing characterization / Giona, Massimiliano; A., Paglianti; Cerbelli, Stefano; S., Pintus; Adrover, Alessandra. - In: CANADIAN JOURNAL OF CHEMICAL ENGINEERING. - ISSN 0008-4034. - STAMPA. - 80:4(2002), pp. 580-590.

Tracer dispersion in stirred tank reactors: Asymptotic properties and mixing characterization

GIONA, Massimiliano;CERBELLI, Stefano;ADROVER, Alessandra
2002

Abstract

This article addresses the characterization of dispersion and homogenization phenomena in stirred vessels through the analysis of dispersion curves that can be obtained experimentally by means of conductivity measurements. New insights on mixing conditions can be achieved from the analysis of the qualitative and asymptotic properties of tracer dispersion curves. The results obtained are interpreted in the context of the spectral approach to the advention-diffusion equation. It is shown that any flow model aimed at reproducing the experimentally determined dispersion curves must be at least two-dimensional. Convention-enhanced dispersion associated with the spectral structure of the advection-diffusion equation is addressed.
2002
conductivity probes; dispersion; spectral analysis; mixing characterization; stirred vessels
01 Pubblicazione su rivista::01a Articolo in rivista
Tracer dispersion in stirred tank reactors: Asymptotic properties and mixing characterization / Giona, Massimiliano; A., Paglianti; Cerbelli, Stefano; S., Pintus; Adrover, Alessandra. - In: CANADIAN JOURNAL OF CHEMICAL ENGINEERING. - ISSN 0008-4034. - STAMPA. - 80:4(2002), pp. 580-590.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/250740
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