Gas dispersion in non-Newtonian fluids with mechanically agitated systems: A review

P Lins Barros, F Ein-Mozaffari, A Lohi - Processes, 2022 - mdpi.com
Gas dispersion in non-Newtonian fluids is encountered in a broad range of chemical,
biochemical, and food industries. Mechanically agitated vessels are commonly employed in …

Numerical investigation of pH control on dark fermentation and hydrogen production in a microbioreactor

MA Delavar, J Wang - Fuel, 2021 - Elsevier
The efficiency of dark fermentation, as one of the most promising bioconversion
technologies to produce biohydrogen, largely depends on some important parameters, such …

Computational fluid dynamics for advanced characterisation of bioreactors used in the biopharmaceutical industry: part I: literature review

S Seidel, C Schirmer, R Maschke… - Computational …, 2023 - digitalcollection.zhaw.ch
Computational fluid dynamics (CFD) is a widely used tool for investigating fluid flows in
bioreactors. It has been used in the biopharmaceutical industry for years and has …

Intensified gas-liquid mixing in bioreactors equipped with a dual coaxial mixer containing biopolymer solutions

F Sharifi, E Behzadfar, F Ein-Mozaffari - Chemical Engineering Research …, 2023 - Elsevier
One of the significant challenges in the efficient operation of bioreactors is uniform gas
dispersion in very viscous non-Newtonian fluids because of the complex rheology exhibited …

Scale-up study of aerated coaxial mixing reactors containing non-newtonian power-law fluids: Analysis of gas holdup, cavity size, and power consumption

A Rahimzadeh, F Ein-Mozaffari, A Lohi - Journal of Industrial and …, 2022 - Elsevier
The use of coaxial mixers has significantly improved gas dispersion in non-Newtonian fluids.
However, to the best of our knowledge, no scale-up investigation of an aerated coaxial mixer …

Power consumption and oxygen transfer optimization for C5 sugar acid production in a gas-liquid stirred tank bioreactor using CFD-Taguchi method

C Xu, X Liu, C Ding, X Zhou, Y Xu, X Gu - Renewable Energy, 2023 - Elsevier
Power consumption and oxygen transfer are considered the two most important direct
indexes, affecting the effective and cost-efficient C5 sugar acid fermentation from C5 sugar …

A Numerical investigation of the hydrodynamic and mass transfer behavior of a liquid-liquid semi-partition bioreactor (SPB) designed for in-situ extractive fermentation

GM Teke, GK Gakingo, RWM Pott - Chemical Engineering Science, 2023 - Elsevier
Organisms used in fermentation processes are sometimes inhibited by accumulation of
products or by-products. One route to circumvent this is via extractive fermentation. To …

CFD simulation of flow and mixing characteristics in a stirred tank agitated by improved disc turbines

Z Jia, L Xu, X Duan, ZS Mao, Q Zhang… - Chinese Journal of …, 2022 - Elsevier
To reduce the power consumption and improve the mixing performance in stirred tanks, two
improved disc turbines namely swept-back parabolic disc turbine (SPDT) and staggered fan …

Experimental and numerical study of a compact inline swirler for gas–liquid separation

F Maluta, A Paglianti, G Montante - Chemical Engineering Science, 2023 - Elsevier
The liquid mean and fluctuating velocity field, the pressure drop, the gas-phase distribution
and the bubble size distribution in a compact inline swirler for gas–liquid separation were …

[HTML][HTML] Hydrodynamics, power consumption and bubble size distribution in gas-liquid stirred tanks

F Maluta, F Alberini, A Paglianti, G Montante - … Engineering Research and …, 2023 - Elsevier
In this work, we present the results collected in a gas-liquid stirred tank by a combination of
experimental and computational methods, with the aim of presenting original data on the …