Open Access

ARTICLE

Analysis of Gas-Solid Flow Characteristics in a Spouted Fluidized Bed Dryer by Means of Computational Particle Fluid Dynamics

by Hongming Zhou, Haozheng Gao, Zheng Fang, Jiangxin Yang, Mingge Wu

1 College of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou, 325035, China
2 Zhejiang Canaan Technology Co., Ltd., Wenzhou, 325000, China
3 School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China

* Corresponding Author: Mingge Wu. Email:

(This article belongs to the Special Issue: EFD and Heat Transfer II)

Fluid Dynamics & Materials Processing 2020, 16(4), 813-826. https://doi.org/10.32604/fdmp.2020.010150

Received 14 February 2020; Accepted 23 July 2020; Issue published 11 August 2020

Abstract

In order to grasp the particle flow characteristics and energy consumption of industrial fluidized spouted beds, we conduct numerical simulations on the basis of a Computational Particle Fluid Dynamics (CPFD) approach. In particular, the traction model of Wen-Yu-Ergun is used and different inlet conditions are considered. Using a low-speed fluidizing gas, the flow state of the particles is better and the amount of particles accumulated at the bottom of the bed wall becomes smaller. For the same air intake, the energy loss of a circular nozzle is larger than that of a square nozzle.

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Keywords

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