CPFD Simulations of Gas-Solid Fluidization in Fluidized Beds with Different Shapes of Cross Sections

2018 International Conference on Advanced Technologies in Energy, Environmental and Electrical Engineering

能源学;生态环境科学;无线电电子学

Jin, Jiangtao^1 ; Li, Xiaofei^2 ; Zhu, Fangzhou^2 ; Lv, Xiaolong^2 ; Qu, Zhichao^2

College of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao, Shandong

266061, China^1

College of Sino-German Science and Technology, Qingdao University of Science and Technology, Qingdao, Shandong

266061, China^2

关键词: Different shapes;    Fluidization characteristics;    Gas distribution;    Gas-solid fluidization;    Particle fluids;    Particles distribution;    Regular hexagon;    Wall effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/223/1/012054/pdf
DOI  :  10.1088/1755-1315/223/1/012054

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to study the influence of shape of cross section on hydrodynamics of gas-solid fluidization in the fluidized bed, five fluidized beds with the shapes of cross sections of circle, regular hexagon, square, rectangle and regular triangle were proposed. The fluidization characteristics and pressure drops in the fluidized beds with different shapes of cross sections were numerically investigated by Computational Particle-Fluid Dynamics (CPFD) models. The simulation results show that the shapes of cross sections affect strongly the particles distributions and the fluidized gas distributions due to strong wall effects, but affect slightly the pressure distributions and the pressure drops in the fluidized beds.