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Analysis of the hydrodynamic parameters of external loop air lift bioreactors

Analiza hidrodinamičkih parametara pneumatskih bioreaktora sa spoljašnjom recirkulacijom

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2004
0367-598X0401010M.pdf (466.5Kb)
Authors
Milivojević, Milan
Duduković, Aleksandar
Obradović, Bojana
Spasić, Aleksandar
Bugarski, Branko
Article (Published version)
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Abstract
In this study we analyzed the effects of the hydrodynamic conditions and properties of the working fluid on the operation of external loop air lift bioreactors. In particular, the effects of design and operating parameters (e.g. reactor geometry, design of the gas sparger, superficial gas velocity, flow regime) as well as the fluid properties (liquid viscosity and addition of surfactants) on the liquid superficial velocity and gas hold-up were defined. Several correlations found in the literature based on theoretical models of fluid flow, as well as several semi-empirical and empirical correlations were tested and the applicability of all the proposed correlations was verified on the available experimental data. The most accurate correlations for the prediction of the gas hold up, liquid circulation velocity and slip velocity in each bioreactor operating regime were identified.
U ovom radu je izvršena analiza uticaja osnovnih hidrodinamičkih parametara pneumatskog reaktora i procesnog fluida na karakteristike rada pneumatskog reaktora sa spoljašnjom recirkulacijom. Definisan je uticaj projektnih i operativnih parametara (geometrije reaktora, raspodeljivača faza, površinske brzine gasa, režima strujanja i dr.) kao i osobina fluida (viskoziteta tečnosti i prisustva površinski aktivnih materija) na površinsku brzinu tečnosti i udeo gasa. Za predviđanje rada pneumatskog bioreaktora korišćen je veći broj literaturno dostupnih korelacija, kako onih koje su izvedene iz nekog od modela strujanja tako i onih poluempirijskih i empirijskih. Primenljivost korelacija je proverena na širem opsegu eksperimentalnih podataka, a dat je i predlog jednačina pomoću koji se mogu u pojedinim režimima rada najtačnije predvideti hidrodinamičke osobine ovih reaktora.
Keywords:
air lift reactors / hydrodynamic / gas hold up correlations / liquid velocity correlations / slip velocity correlations / pneumatski bioreaktori / hidrodinamika / jednačine za zadržavanje gasa / jednačine za brzinu tečnosti / jednačine za "slip" brzinu
Source:
Hemijska industrija, 2004, 58, 1, 10-18
Publisher:
  • Association of Chemical Engineers of Serbia

DOI: 10.2298/HEMIND0401010M

ISSN: 0367-598X

[ Google Scholar ]
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/653
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Milivojević, Milan
AU  - Duduković, Aleksandar
AU  - Obradović, Bojana
AU  - Spasić, Aleksandar
AU  - Bugarski, Branko
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/653
AB  - In this study we analyzed the effects of the hydrodynamic conditions and properties of the working fluid on the operation of external loop air lift bioreactors. In particular, the effects of design and operating parameters (e.g. reactor geometry, design of the gas sparger, superficial gas velocity, flow regime) as well as the fluid properties (liquid viscosity and addition of surfactants) on the liquid superficial velocity and gas hold-up were defined. Several correlations found in the literature based on theoretical models of fluid flow, as well as several semi-empirical and empirical correlations were tested and the applicability of all the proposed correlations was verified on the available experimental data. The most accurate correlations for the prediction of the gas hold up, liquid circulation velocity and slip velocity in each bioreactor operating regime were identified.
AB  - U ovom radu je izvršena analiza uticaja osnovnih hidrodinamičkih parametara pneumatskog reaktora i procesnog fluida na karakteristike rada pneumatskog reaktora sa spoljašnjom recirkulacijom. Definisan je uticaj projektnih i operativnih parametara (geometrije reaktora, raspodeljivača faza, površinske brzine gasa, režima strujanja i dr.) kao i osobina fluida (viskoziteta tečnosti i prisustva površinski aktivnih materija) na površinsku brzinu tečnosti i udeo gasa. Za predviđanje rada pneumatskog bioreaktora korišćen je veći broj literaturno dostupnih korelacija, kako onih koje su izvedene iz nekog od modela strujanja tako i onih poluempirijskih i empirijskih. Primenljivost korelacija je proverena na širem opsegu eksperimentalnih podataka, a dat je i predlog jednačina pomoću koji se mogu u pojedinim režimima rada najtačnije predvideti hidrodinamičke osobine ovih reaktora.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Analysis of the hydrodynamic parameters of external loop air lift bioreactors
T1  - Analiza hidrodinamičkih parametara pneumatskih bioreaktora sa spoljašnjom recirkulacijom
EP  - 18
IS  - 1
SP  - 10
VL  - 58
DO  - 10.2298/HEMIND0401010M
UR  - conv_1042
ER  - 
@article{
author = "Milivojević, Milan and Duduković, Aleksandar and Obradović, Bojana and Spasić, Aleksandar and Bugarski, Branko",
year = "2004",
abstract = "In this study we analyzed the effects of the hydrodynamic conditions and properties of the working fluid on the operation of external loop air lift bioreactors. In particular, the effects of design and operating parameters (e.g. reactor geometry, design of the gas sparger, superficial gas velocity, flow regime) as well as the fluid properties (liquid viscosity and addition of surfactants) on the liquid superficial velocity and gas hold-up were defined. Several correlations found in the literature based on theoretical models of fluid flow, as well as several semi-empirical and empirical correlations were tested and the applicability of all the proposed correlations was verified on the available experimental data. The most accurate correlations for the prediction of the gas hold up, liquid circulation velocity and slip velocity in each bioreactor operating regime were identified., U ovom radu je izvršena analiza uticaja osnovnih hidrodinamičkih parametara pneumatskog reaktora i procesnog fluida na karakteristike rada pneumatskog reaktora sa spoljašnjom recirkulacijom. Definisan je uticaj projektnih i operativnih parametara (geometrije reaktora, raspodeljivača faza, površinske brzine gasa, režima strujanja i dr.) kao i osobina fluida (viskoziteta tečnosti i prisustva površinski aktivnih materija) na površinsku brzinu tečnosti i udeo gasa. Za predviđanje rada pneumatskog bioreaktora korišćen je veći broj literaturno dostupnih korelacija, kako onih koje su izvedene iz nekog od modela strujanja tako i onih poluempirijskih i empirijskih. Primenljivost korelacija je proverena na širem opsegu eksperimentalnih podataka, a dat je i predlog jednačina pomoću koji se mogu u pojedinim režimima rada najtačnije predvideti hidrodinamičke osobine ovih reaktora.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Analysis of the hydrodynamic parameters of external loop air lift bioreactors, Analiza hidrodinamičkih parametara pneumatskih bioreaktora sa spoljašnjom recirkulacijom",
pages = "18-10",
number = "1",
volume = "58",
doi = "10.2298/HEMIND0401010M",
url = "conv_1042"
}
Milivojević, M., Duduković, A., Obradović, B., Spasić, A.,& Bugarski, B.. (2004). Analysis of the hydrodynamic parameters of external loop air lift bioreactors. in Hemijska industrija
Association of Chemical Engineers of Serbia., 58(1), 10-18.
https://doi.org/10.2298/HEMIND0401010M
conv_1042
Milivojević M, Duduković A, Obradović B, Spasić A, Bugarski B. Analysis of the hydrodynamic parameters of external loop air lift bioreactors. in Hemijska industrija. 2004;58(1):10-18.
doi:10.2298/HEMIND0401010M
conv_1042 .
Milivojević, Milan, Duduković, Aleksandar, Obradović, Bojana, Spasić, Aleksandar, Bugarski, Branko, "Analysis of the hydrodynamic parameters of external loop air lift bioreactors" in Hemijska industrija, 58, no. 1 (2004):10-18,
https://doi.org/10.2298/HEMIND0401010M .,
conv_1042 .

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