Experimental study on vibrating fluidized bed solids drying

被引：6

作者：

de Munck, M. J. A. ^{[1
]}

Peters, E. A. J. F. ^{[1
]}

Kuipers, J. A. M. ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Dept Chem Engn & Chem, Multiphase Reactors Grp, POB 513, NL-5600 MB Eindhoven, Netherlands

来源：

CHEMICAL ENGINEERING JOURNAL | 2023年 / 472卷

关键词：

Vibrating fluidized bed drying; Particle image velocimetry; Infrared thermography; Particle temperature distribution; Solids volume fluxes; VERTICAL VIBRATION; ISOLATED BUBBLES; VELOCITY; TEMPERATURE; BEHAVIOR; MOTION; BULK;

D O I：

10.1016/j.cej.2023.144809

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Enhancing the gas-solid contacting inside a fluidized bed leads to improved solids drying characteristics. This can be achieved by mechanical vibration, resulting in so-called vibro-fluidized beds. In this study, experiments in a pseudo-2D vibro-fluidized bed setup are performed in order to better understand this improved drying behavior. A coupled particle image velocimetry -infrared thermography technique is applied to characterize the local solids velocity and temperature fields. The added vibration results in a significantly increased solids drying rate compared to a traditional gas-fluidized bed due to enhanced meso-scale particle agitation. Furthermore, it is shown that the gas-bubble appearance and the particle temperature standard deviation are highly dependent on the applied vibration amplitude and frequency.

引用

页数：14

共 36 条

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