Prediction of flow regimes in spout-fluidized beds--颗粒学报PARTICUOLOGY

Zhang, J., & Tang, F. (2006). Prediction of flow regimes in spout-fluidized beds. China Particuology, 4(3), 189–193. https://doi.org/10.1016/S1672-2515(07)60260-7

Prediction of flow regimes in spout-fluidized beds

Jiyu Zhang ^a *, Fengxiang Tang ^a

a Institute of Chemical Engineering and Technology, Fuzhou University, Fujian 350002, P.R. China

10.1016/S1672-2515(07)60260-7

Volume 4, Issues 3–4, July 2006, Pages 189-193

Received 14 January 2006, Accepted 2 April 2006, Available online 27 November 2007.

E-mail: jyzhang@fzu.edu.cn

Highlights

Abstract

Five main flow regimes in spout-fluidized bed were identified in this study, namely, fixed bed, spout with aeration, spout-fluidization, jet in fluidized bed and slugging, together with their corresponding major frequencies translated from pressure signals. The empirical equation A = aB^b, in which A = Fr^*/(H′/Di) and B = (Fr^*/(H′/Di))/(u_gt/u_mf) are respectively the spout-geometry and spout-geometry-fluidization dimensionless numbers, was proposed to distinguish these flow regimes.

Graphical abstract

Keywords

spout-fluidized bed; flow regime; major frequencies

文章导读