Anisotropic Turbulent Mass Transfer Model and Its Application to a Gas-Particle Bubbling Fluidized Bed

2018 ◽  
Vol 57 (5) ◽  
pp. 1671-1678
Author(s):  
Wenbin Li ◽  
Yuanyuan Shao ◽  
Jesse Zhu
Keyword(s):  
Mass Transfer ◽  
Fluidized Bed ◽  
Transfer Model ◽  
Mass Transfer Model ◽  
Bubbling Fluidized Bed ◽  
Turbulent Mass Transfer

Turbulent mass transfer model for the simulation of liquid-solid CFB risers and its verification

2021 ◽  
Vol 377 ◽  
pp. 847-856
Author(s):  
Yawen Zhang ◽  
Panfeng Ren ◽  
Wenbin Li ◽  
Kuotsung Yu
Keyword(s):  
Mass Transfer ◽  
Transfer Model ◽  
Mass Transfer Model ◽  
Turbulent Mass Transfer

A Local Model for Gas-Liquid Mass Transfer in a Gas-Liquid-Solid Circulating Fluidized Bed

2004 ◽  
Vol 2 (1) ◽  
Author(s):  
Zhengliang Liu ◽  
Ying Zheng
Keyword(s):  
Mass Transfer ◽  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Transfer Model ◽  
Mass Transfer Model ◽  
Local Mass ◽  
Liquid Mass ◽  
Liquid Dispersion ◽  
Local Mass Transfer ◽  
Liquid Mass Transfer

A local mass transfer model which details the local gas-liquid mass transfer phenomenon in a gas-liquid-solid circulating fluidized bed (GLSCFB) is discussed and tested in this work. It is observed that the local mass transfer model with consideration of the axial liquid dispersion can appropriately address the gas-liquid mass transfer at every radial position in the riser; however, that without consideration of the axial liquid dispersion can only deal with the mass transfer near the wall where the axial liquid dispersion is negligible. The effects of gas flow rates, liquid velocities, particle circulating rates, and particle sizes on gas-liquid mass transfer in GLSCFBs have also been examined systematically. Based on the experimental data, a correlation is obtained to predict the gas-liquid mass transfer coefficients in GLSCFBs for the first time.

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