Change in Mixing Power of a Two-PBT Impeller When Emptying a Tank
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00349973" target="_blank" >RIV/68407700:21220/21:00349973 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/pr9020341" target="_blank" >https://doi.org/10.3390/pr9020341</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/pr9020341" target="_blank" >10.3390/pr9020341</a>
Alternative languages
Result language
angličtina
Original language name
Change in Mixing Power of a Two-PBT Impeller When Emptying a Tank
Original language description
The paper presents research on the phenomenon of an increase in mixing power during the emptying of a tank with two 6-PBT45 degrees axial impellers in operation, located on a common shaft, pumping the liquid to the bottom of the mixing tank. A large increase in mixing power took place when the free surface of the liquid was just above the upper edge of one of the impellers (h(p)/D < 0.1). This increase was even more than 50% compared to the design power for a fully filled mixing vessel. Admittedly, high motor overload, while not very long, may damage it. The study investigated the instantaneous torques acting on the impeller shaft during the emptying of the tank and the velocity distributions in planes r-z. On their basis, the mechanism of the phenomenon observed was determined and correlation relationships were given that permitted the calculation of the numerical values of the power increase factors.
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
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Research centre for low-carbon energy technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Processes
ISSN
2227-9717
e-ISSN
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Volume of the periodical
9
Issue of the periodical within the volume
2
Country of publishing house
CH - SWITZERLAND
Number of pages
15
Pages from-to
1-15
UT code for WoS article
000623128000001
EID of the result in the Scopus database
2-s2.0-85101376085