scholarly journals Effect of Multiple Liquid Inlets on Mass Transfer in Rotating Packed Beds

2020 ◽  
Vol 328 ◽  
pp. 02010
Author(s):  
Jakub Elcner ◽  
Miroslav Jicha
Keyword(s):  
Fluid Dynamics ◽  
Mass Transfer ◽  
Computational Fluid Dynamics ◽  
Packed Bed ◽  
Volume Of Fluid ◽  
Packed Beds ◽  
Liquid Holdup ◽  
Rotating Packed Bed ◽  
Unsteady Rans ◽  
Liquid Distributor

This study deals with optimalization of rotating packed bed design using computational fluid dynamics approach. Comparison of three variants of liquid distributor were performed on 2D geometry. Turbulence was modelled using unsteady RANS approach and volume of fluid technique were used to simulate gas-liquid interphase. Results were compared on basis of liquid holdup evaluation.

scholarly journals A Review of Modeling Rotating Packed Beds and Improving Their Parameters: Gas—Liquid Contact

2021 ◽  
Vol 13 (14) ◽  
pp. 8046
Author(s):  
Farhad Ghadyanlou ◽  
Ahmad Azari ◽  
Ali Vatani
Keyword(s):  
Mass Transfer ◽  
Scale Up ◽  
Packed Bed ◽  
Packed Beds ◽  
Transfer Coefficients ◽  
Dimensionless Numbers ◽  
Two Phase ◽  
Shape Factors ◽  
Area Of Interest ◽  
Rotating Packed Bed

The aim of this review is to investigate a kind of process intensification equipment called a rotating packed bed (RPB), which improves transport via centrifugal force in the gas—liquid field, especially by absorption. Different types of RPB, and their advantages and effects on hydrodynamics, mass transfer, and power consumption under available models, are analyzed. Moreover, different approaches to the modeling of RPB are discussed, their mass transfer characteristics and hydrodynamic features are compared, and all models are reviewed. A dimensional analysis showed that suitable dimensionless numbers could make for a more realistic definition of the system, and could be used for prototype scale-up and benchmarking purposes. Additionally, comparisons of the results demonstrated that Re, Gr, Sc, Fr, We, and shape factors are effective. In addition, a study of mass transfer models revealed that the contact zone was the main area of interest in previous studies, and this zone was not evaluated in the same way as packed beds. Moreover, CFD studies revealed that the realizable k-ε turbulence model and the VOF two-phase model, combined with experimental reaction or mass transfer equations for analyzing hydrodynamic and mass transfer coefficients, could help define an RPB system in a more realistic way.

Multilevel cross flow rotating packed bed to enhance gas film control mass transfer process

2021 ◽  
Vol 161 ◽  
pp. 108321
Author(s):  
Qing-Qing Duan ◽  
Zhi-Guo Yuan ◽  
You-Zhi Liu ◽  
Shan-Shan Duan ◽  
Xi-Fan Duan
Keyword(s):  
Mass Transfer ◽  
Transfer Process ◽  
Cross Flow ◽  
Mass Transfer Process ◽  
Packed Bed ◽  
Rotating Packed Bed

Modelling heat and mass transfer of a broiler house using computational fluid dynamics

2015 ◽  
Vol 136 ◽  
pp. 25-38 ◽  
Author(s):  
Fernando Rojano ◽  
Pierre-Emmanuel Bournet ◽  
Melynda Hassouna ◽  
Paul Robin ◽  
Murat Kacira ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Mass Transfer ◽  
Computational Fluid Dynamics ◽  
Heat And Mass Transfer ◽  
Broiler House

Influence of Gas-Liquid Distribution Inducer on Mass Transfer Coefficient in Rotating Packed Bed

2014 ◽  
Vol 908 ◽  
pp. 277-281
Author(s):  
Fei Wu ◽  
Jie Wu ◽  
Mei Jin ◽  
Fang Wang ◽  
Ping Lu
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Flow Rate ◽  
Rotor Blade ◽  
Gas Flow ◽  
Packed Bed ◽  
Contact Length ◽  
Liquid Distribution ◽  
Rotating Packed Bed

Based on acetone-H2O system, the influence of the gas-liquid distribution inducer on the mass transfer coefficient in the rotating packed bed with the stainless steel packing was investigated. Furthermore, the absorption performance was also obtained under the experimental condition of the rotational speed of 630 rpm, the gas flow rate of 2 m3/h and the liquid flow rate of 100 L/h in the rotating packed bed with different types and different installation ways of the distribution inducer. The experimental results showed that the volumetric mass transfer coefficient Kyα per unit contact length of gas-liquid was increased by 8.6% for the forward-curved fixed blade, by 19.8% for the backward-curved rotor blade and by 33.2% with the combination of the straight radial rotor blade and the backward-curved fixed blade, respectively. Furthermore, when the gas flow rate was 2.5 m3/h, Kyα per unit contact length of gas-liquid was increased by 2.9% for the forward-curved fixed blade, by 25.3% for the backward-curved rotor blade, by 42.7% for the combination of the straight radial rotor blade and the backward-curved fixed blade, respectively. The results indicated that the distribution inducer play an important role on the improvement of the mass transfer coefficient in acetone-H2O system.

scholarly journals Prediction of Liquid Holdup in Countercurrent-Flow Rotating Packed Bed

2000 ◽  
Vol 78 (3) ◽  
pp. 397-403 ◽  
Author(s):  
Chia-Chang Lin ◽  
Yu-Shao Chen ◽  
Hwai-Shen Liu
Keyword(s):  
Packed Bed ◽  
Countercurrent Flow ◽  
Liquid Holdup ◽  
Rotating Packed Bed

scholarly journals Mass Transfer in a Rotating Packed Bed with Viscous Newtonian and Non-Newtonian Fluids

2005 ◽  
Vol 44 (4) ◽  
pp. 1043-1051 ◽  
Author(s):  
Yu-Shao Chen ◽  
Chia-Chang Lin ◽  
Hwai-Shen Liu
Keyword(s):  
Mass Transfer ◽  
Packed Bed ◽  
Newtonian Fluids ◽  
Rotating Packed Bed
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