Effect of temperature and apparent liquid viscosity on the hydrodynamics of liquid–solid tapered inverse fluidized bed: experimental studies compared with empirical models

被引：0
作者：
H. Upender
K. Anand Kishore
机构：
[1] National Institute of Technology,Department of Chemical Engineering
来源：
SN Applied Sciences | 2020年 / 2卷
关键词：
Tapered inverse fluidized bed; Minimum fluidization velocity; Bed voidage; Heat transfer; Apparent viscosity;
D O I：
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摘要：
In the present work, immersed heater to bed heat transfer coefficient and related hydrodynamics were determined along with different angles (7.85 and 6.8) of the tapered inversed fluidized bed. Carboxyl methylcellulose was used to change the water viscosity by using a power-law model. The hydrodynamics was compared for two different angles of beds. Furthermore, minimum fluidization velocities were carried out for different liquid apparent viscosities and different angles of beds and compared with previous models. The heat transfer coefficient was found to be increasing with liquid velocity and bed voidage, respectively, and it was also found that the bed voidage is high for a high diameter of particles. The correlation was developed between the bed expansion ratio and independent parameters by response surface methodology in design expert software v.9.
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