| Autor: |
Hájek Ondřej, Bouchal Patrik, Cejpek Ondřej, Malý Milan, Hájek Jiří, Prinz František, Zawadski Dawid, Blatkiewicz Michal, Jícha Miroslav |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
EPJ Web of Conferences, Vol 299, p 01013 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2100-014X |
| DOI: |
10.1051/epjconf/202429901013 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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