Analysis of Droplet Motion in Cavity Zone of Rotating Packed Bed
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F25%3APU152299" target="_blank" >RIV/00216305:26210/25:PU152299 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1383586624038140" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1383586624038140</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.seppur.2024.130075" target="_blank" >10.1016/j.seppur.2024.130075</a>
Alternative languages
Result language
angličtina
Original language name
Analysis of Droplet Motion in Cavity Zone of Rotating Packed Bed
Original language description
Droplet motion in outer cavity zone of rotating packed bed is a complex phenomenon that requires analysis of liquid and gas flow to clarify influences of factors such as rotation speed, liquid flow rate, or gas flow rate. In this study, hydrodynamics is described using laser Doppler velocimetry and high-resolution visualization for droplet motion characterization. The results reveal that droplet motion initially depends on the peripheral velocity of the packing, while further from the packing, it loses kinetic energy mainly due to the drag force caused by the surrounding gas. Two-way coupling is investigated as both phases interact with each other. Rankine vortex theory is applied to simulate gas flow in the outer cavity zone. A model, based on Newton's second law, is developed to predict droplet dynamics, including impingement velocity, trajectory length, and total residence time. Validation of the model shows that it can predict the liquid velocity in the outer cavity zone accurately. Upon impingement of droplets on the casing, part of the liquid rebounds as secondary droplets into the cavity, where they circulate with the gas flow. Overall, this study provides insights into droplet dynamics in the rotating packed bed and offers a basis for optimizing process efficiency and design in various applications, including chemical processing and environmental engineering.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20401 - Chemical engineering (plants, products)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SEPARATION AND PURIFICATION TECHNOLOGY
ISSN
1383-5866
e-ISSN
1873-3794
Volume of the periodical
357
Issue of the periodical within the volume
B
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
„“-„“
UT code for WoS article
001341452500001
EID of the result in the Scopus database
2-s2.0-85206819544