Investigation of drying process of non-spherical particle in a pulsed fluidized bed  

作　　者：Hanyu Jin Shuai Wang Yurong He 

机构地区：[1]School of Energy Science and Engineering,Harbin Institute of Technology,Harbin,150001,China [2]Zhengzhou Research Institute,Harbin Institute of Technology,Zhengzhou,450000,China

出　　处：《Particuology》2025年第3期134-141,共8页颗粒学报(英文版)

基　　金：the National Natural Science Foundation of China(grant No.U20A20304);financial support from the Fundamental Research Funds for the Central Universities(grant No.FRFCU5710050721).

摘　　要：Gas pulsation is an efficient enhancing way for fluidized bed drying process.In this work,the influence of gas pulsation on mass and heat transfer performance in a fluidized bed with non-spherical wet particles is numerically investigated via the computational fluid dynamics−discrete element method(CFD-DEM)approach,where the liquid transfer between particles and the heat transfer by liquid bridge are considered.The aspect ratio effect of non-spherical particle on drying process is revealed.It is found that the increase of aspect ratio can weaken the overall drying quality.The influence of gas pulsation on the drying of non-spherical particle is analyzed.The results reveal that adjusting a suitable gas pulsation mode can efficiently regulate the drying process of non-spherical wet particles with greater aspect ratios.

关 键 词：DRYING Non-spherical particle Gas pulsation Fluidized bed 

分 类 号：TQ021.4[化学工程]