Volume 98
Jin, H., Wang, S., & He, Y. (2025). Investigation of drying process of non-spherical particle in a pulsed fluidized bed. Particuology, 98, 134-141. https://doi.org/10.1016/j.partic.2025.01.013
Investigation of drying process of non-spherical particle in a pulsed fluidized bed
Hanyu Jin a, Shuai Wang a b *, Yurong He a
a School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
b Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou, 450000, China
10.1016/j.partic.2025.01.013
Volume 98,
March 2025,
Pages 134-141
Received 16 September 2024, Revised 2 January 2025, Accepted 23 January 2025, Available online 12 February 2025, Version of Record 19 February 2025.
E-mail:
shuaiwang@hit.edu.cn
Highlights
• Aspect ratio effect of non-spherical particles on drying process is evaluated.
• Pulsation airflow impact on drying behaviors of non-spherical particle is analyzed.
• Heat transfer mechanism of non-spherical particle under pulsation flow is revealed.
Abstract
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.
Graphical abstract
Keywords
Drying; Non-spherical particle; Gas pulsation; Fluidized bed
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