Characteristics of droplets formed on the outer surface of the rotating packed bed

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU146565" target="_blank" >RIV/00216305:26210/22:PU146565 - isvavai.cz</a>
Result on the web
<a href="https://www.epj-conferences.org/articles/epjconf/abs/2024/09/epjconf_efm2024_01013/epjconf_efm2024_01013.html" target="_blank" >https://www.epj-conferences.org/articles/epjconf/abs/2024/09/epjconf_efm2024_01013/epjconf_efm2024_01013.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/202429901013" target="_blank" >10.1051/epjconf/202429901013</a>

Result language
angličtina
Original language name
Characteristics of droplets formed on the outer surface of the rotating packed bed
Original language description
A rotating packed bed (RPB), as a device for mass transfer enhancement, can be divided into three main parts. An eye of a rotor, a packing, and an outer cavity. It has been reported that a contribution to the total mass transfer of the outer cavity can reach up to 30% of the whole device. Mass transfer is highly influenced by the droplet hydrodynamics and dimensions, hence the liquid dispersion from the outer surface of a metal foam packing was recorded with a high-speed camera. The recordings were analysed with an in-house MATLAB® code to determine the droplet dimensions, and with a PIVlab software to evaluate velocity fields. It has been found that the droplet dimensions and velocities were influenced primarily by a packing speed, as the higher packing speed resulted in a presence of the smaller droplets. Two peaks in histograms for the droplet diameters could be explained with a breakup theory of a liquid jet which breaks into large, mother, and small, satellite droplets. The droplet velocity corresponded to a peripheral velocity of the packing. A liquid flow rate influenced only the number of droplets dispersed from the packing.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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