Abstract
A bubble-emulsion two-fluid model is proposed for the simulation of gas-solid flow in bubbling fluidized beds. This work proposes an analogous research program, according to the analogies in the flow regime and the mechanism between a gas-solid bubbling fluidized bed and a gas-liquid bubble column. The research includes a complete description of the constitutive relationship for interphase forces around the bubbles, a comprehensive investigation of correlations for bubble and emulsion phase properties, and an in-depth analysis of the mechanism of radial nonuniformity in a fluidized bed. The model is verified through comparison of simulated results with experimental data of both Geldart A and B particles. The model is conducted on a coarse grid which shows more potential for the simulation of commercial fluidized equipment.
Original language | English |
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Pages (from-to) | 10835-10844 |
Number of pages | 10 |
Journal | Industrial and Engineering Chemistry Research |
Volume | 52 |
Issue number | 31 |
DOIs | |
State | Published - 7 Aug 2013 |
Externally published | Yes |