Segregation characteristics of irregular binaries in gas solid fluidized beds

Sahoo, A., & Roy, G. K. (2008). Segregation characteristics of irregular binaries in gas solid fluidized beds—An ANN-approach. Particuology, 6(3), 199–206. https://doi.org/10.1016/j.partic.2008.03.003

Segregation characteristics of irregular binaries in gas solid fluidized beds—An ANN-approach

Abanti Sahoo^*, Gopendra Kishore Roy

Department of Chemical Engineering, National Institute of Technology, Rourkela, 769008 Orissa, India

10.1016/j.partic.2008.03.003

Volume 6, Issue 3, June 2008, Pages 199-206

Received 1 February 2008, Accepted 11 March 2008, Available online 15 May 2008.

E-mail: asahu@nitrkl.ac.in; abantisahoo@gmail.com

Highlights

Abstract

Binary mixtures of irregular materials of different particle sizes and/or particle densities are fluidized in a 15-cm diameter column with a perforated plate distributor. An attempt has been made in this work to determine the segregation characteristics of jetsam particles for both the homogeneous and heterogeneous binary mixtures in terms of segregation distance by correlating it to the various system parameters, viz. initial static bed height, height of a layer of particles above the bottom grid, superficial gas velocity and average particle size and/or particle densities of the mixture through the dimensional analysis. Correlation on the basis of Artificial Neural Network approach has also been developed with the above system parameters thereby authenticating the development of correlation by the former approach. The calculated values of the segregation distance obtained for both the homogeneous and heterogeneous binary mixtures from both the types of fluidized beds (i.e. under the static bed condition and the fluidized bed condition) have also been compared with each other.

Graphical abstract

Keywords

Gas–solid fluidization; Segregation distance; Static bed condition; Fluidized bed condition; Irregular binaries and artificial neural network

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