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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Characterization of gas-solid flow in a cold fluidized bed from signals of a non-invasive electrical charge sensor

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Author(s):
dos Reis, Emerson [1] ; de Andrade, Matheus Ferreira Felix [1] ; Albuquerque, Giovani Martim [1] ; Pontes, Ruan Guilherme Bertoni [1] ; Frajuca, Carlos [2]
Total Authors: 5
Affiliation:
[1] Fed Inst Educ Sci & Technol Sao Paulo, IFSP, Campus Sao Joao da Boa Vista, BR-13871298 Sao Joao Da Boa Vista, SP - Brazil
[2] Fed Inst Educ Sci & Technol Sao Paulo, IFSP, Campus Sao Paulo, BR-01109010 Sao Paulo, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Powder Technology; v. 382, p. 512-523, APR 2021.
Web of Science Citations: 1
Abstract

A suitable technique for monitoring the gas-solid flows in fluidized beds can ensure the quality and efficiency of many industrial processes. Gaseous fluidization of solid particles is a complex phenomenon, which generates electrical charges due to particle-particle and particle-wall interactions. In this work, a ring-type electrical charge sensor was used for generating signals from an air-silica sand fluidized bed in a Plexiglas pipe riser of 34 mm ID operating at laboratory temperature. Firstly, a flow signature of each typical fluidization regime from static to turbulent was chosen by calculations of the Kolmogorov complexity. Then, data sets from time-series, Probability Density Function (PDF), and Power Spectrum Density (PSD) were used for the characterization of such flows. Further, similar data sets from other distinct fluidization conditions were also calculated, and the normalized cross-correlation between such data was shown as a robust parameter for the correct identification of the gas-solid fluidization regime. (C) 2021 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 13/26258-4 - Superdense matter in the universe
Grantee:Manuel Máximo Bastos Malheiro de Oliveira
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 12/50297-7 - Capacitive probe for use in two-phase flows of electrically conductive aqueous fluids
Grantee:Emerson dos Reis
Support Opportunities: Regular Research Grants