Gas phase behaviour in environment of fermentation processes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F25%3A00637074" target="_blank" >RIV/67985858:_____/25:00637074 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/25:43933541
Result on the web
<a href="https://hdl.handle.net/11104/0368039" target="_blank" >https://hdl.handle.net/11104/0368039</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cherd.2025.05.031" target="_blank" >10.1016/j.cherd.2025.05.031</a>
Alternative languages
Result language
angličtina
Original language name
Gas phase behaviour in environment of fermentation processes
Original language description
The residence time distribution of the gas phase has been measured in a stirred tank reactor with three impellers mounted on a common shaft. The gas Peclet number is studied over a wide range of operational (impeller speed, gas flow rate) and geometrical (impeller size, type) conditions. The effects of impeller geometry and fluid properties are clearly described, indicating a critical influence of bubble size distribution on gas macromixing and recirculation. Hydrofoil down-pumping impellers were found to produce the best gas mixing compared to radial or up-pumping axial impellers exhibiting the lowest gas Peclet number. Viscous and non-coalescent batches exhibit a bubble size distribution with a significant proportion of small bubbles contributing to more intense gas mixing and lower Peclet numbers compared to distilled water. Due to the wide range of operating conditions used, the quantities found can be used not only in industrial applications for optimisation or design of stirred tank reactors, but also for more advanced modelling and verification of CFD simulations.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Engineering Research and Design
ISSN
0263-8762
e-ISSN
1744-3563
Volume of the periodical
219
Issue of the periodical within the volume
JUL 2025
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
43-51
UT code for WoS article
001508995200001
EID of the result in the Scopus database
2-s2.0-105007148971