Počet záznamů: 1
Improvement of an unbaffled stirred tank mixing characteristics using variable speed impeller
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SYSNO ASEP 0585697 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Improvement of an unbaffled stirred tank mixing characteristics using variable speed impeller Tvůrce(i) Gebouský, Ondřej (UH-J) ORCID, RID, SAI
Haidl, Jan (UH-J) ORCID, RID, SAI
Bodnár, J. (CZ)
Pivokonský, Martin (UH-J) SAI, ORCID, RIDZdroj.dok. Topical Problems of Fluid Mechanics. - Prague : Institute of Thermomechanics AS CR, v. v. i., 2024 / Šimurda D. ; Bodnár T. - ISSN 2336-5781 - ISBN 978-80-87012-88-8 Rozsah stran s. 54-60 Poč.str. 7 s. Forma vydání Online - E Akce Topical Problems of Fluid Mechanics 2024 Datum konání 21.02.2024 - 23.02.2024 Místo konání Prague Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova unbaffled mixing tanks ; variable rotational speed ; vortex destabilization ; mixing time improvement Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical engineering (plants, products) Institucionální podpora UH-J - RVO:67985874 UT WOS 001242655400008 DOI https://doi.org/10.14311/TPFM.2024.008 Anotace Unbaffled mixing tanks with magnetically driven impellers are increasingly used in biotechnological and pharmaceutical industries, combining the benefits of a closed, sterile environment with easy equipment cleanability. On the other hand, missing internals, such as baffles or cooling coils, have an adverse effect on the equipment mixing characteristics, namely the batch
homogenization time. In our previous research, we uncovered that the eccentricity and inclination of the impeller – both employed routinely to enhance the mixing characteristics of unbaffled vessels – are not fully effective in the suppression of central vortex formation resulting in the increase in the homogenization time. In this work, we propose a simple solution to counteract the central vortex formation – a periodical variation of impeller rotational speed. This approach destabilizes the central vortex, significantly reducing homogenization time while maintaining the benefits of the original unbaffled setup. This innovation can seamlessly integrate into existing industrial setups, promising efficiency gains for biotech and pharmaceutical production.Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2025
Počet záznamů: 1