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Map determination for the calculation of dispersion spectra in flowing oil-gas dispersions

  • The production of liquid-gas mixtures with desired properties still places high demands on process technology and is usually realized in bubble columns. The physical calculation models used have individual dimensionless factors which, depending on the application, are only valid for small ranges consisting of flow velocity, nozzle geometry and test setup. An iterative but time-consuming design of such dispersion processes is used in industry for producing a liquid-gas mixture according to desired requirements. In the present investigation, we accelerate the necessary design loops by setting up a physical model, which consists of several subsystems that are enriched by dedicated experiments to realize liquid-gas dispersions with low volume fraction and small air bubble diameters in oil. Our approach allows the extraction of individual dimensionless factors from maps of the introduced subsystems. These maps allow for targeted corrective measures of a production process for keeping the quality. The calculation-based approach avoids the need for performing iterative design loops. Overall, this approach supports the controlled generation of liquid-gas mixtures.

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Metadaten
Author:Lukas Hafner, Martin Brunner, Nadja Konrad, Steffen Schwarzer, Fadi DohnalORCiD
DOI:https://doi.org/10.1016/j.cherd.2023.02.019
Parent Title (English):Chemical Engineering Research and Design
Document Type:Article
Language:English
Year of publication:2023
Release Date:2024/01/09
Tag:bubble dynamics; mechatronics
Volume:192
Number of pages:15
First Page:253
Last Page:267
Organisationseinheit:Forschung / Forschungszentrum Mikrotechnik
DDC classes:600 Technik, Medizin, angewandte Wissenschaften
Open Access?:ja
Peer review:wiss. Beitrag, peer-reviewed
Dohnal, Fadi
Licence (German):License LogoCreative Commons - CC BY - International - Attribution- Namensnennung 4.0