Results 121 to 130 of about 580 (146)

Investigation of Local and Overall Volumetric Mass Transfer Coefficient and Gas Holdup in Aerated Coaxial Mixing Systems Containing Non-Newtonian Fluids through Tomography and Computational Fluid Dynamics

<p>Gas dispersion in Newtonian and non-Newtonian fluids is one of the most important processes in biochemical industries. Aerated mixing tanks are preferred due to their superior performance in increasing the contact area and mass transfer between two phases.
Maryam Jamshidzadeh (11024196)
openaire   +2 more sources

Predictions of radial gas holdup profiles in bubble column reactors

Chemical Engineering Science, 2001
Gas Holdup and its Profile Are Important Parameters to Be Characterized in Bubble Column Reactors. Proper Prediction of the Radial Gas Holdup Profiles is Necessary for Determining Liquid Mixing, Flow Regime Transition, Heat and Mass Transfer.
Muthanna H Al-Dahhan
exaly   +3 more sources

Local gas holdup in a draft tube airlift bioreactor

Chemical Engineering Science, 2010
Airlift Column Bioreactors Are Gas-Liquid Contact Devices Characterized by a Rising Channel and a Down Flow Channel Due to Gas Holdup Differences in These Two Channels.
Muthanna H Al-Dahhan
exaly   +3 more sources

Some of the next articles are maybe not open access.

Related searches:

Local and overall gas holdup in an aerated coaxial mixing system containing a non‐Newtonian fluid

AIChE Journal, 2020
AbstractGas dispersion in non‐Newtonian fluids is a challenging task due to the formation of large cavities behind the impeller blades, which leads to the generation of very large bubbles. In this study, the effects of impeller speed, impeller type, pumping direction, and CMC concentration on the local and overall gas holdup inside a coaxial mixing ...
Maryam Jamshidzadeh, Farhad Ein‐Mozaffari, Ali Lohi   +2 more
openaire   +1 more source

Gas holdup and overall volumetric oxygen transfer coefficient in airlift contactors

Biotechnology and Bioengineering, 1985
AbstractThe two major types of airlift contactors, concentric‐tube and external‐loop, were investigated for their gas holdup (riser and downcomer) and overall mass transfer characteristics. Results obtained in batch charges of tap water and 0.15 kmol/m3 NaCl solution are reported for external‐loop airlift contactors having downcomer‐to‐riser cross ...
R A, Bello, C W, Robinson, M, Moo-Young
openaire   +2 more sources

Impacts of dense heat exchanging internals on gas holdup cross-sectional distributions and profiles of bubble column using gamma ray Computed Tomography (CT) for FT synthesis

Chemical Engineering Journal, 2016
The effect of heat exchanging internals that represent Fischer-Tropsch (FT) synthesis in bubble column has been investigated for the first time using gamma ray Computed Tomography (CT) in a 5.5 (0.14 m) inner diameter Plexiglas bubble column operated at
Abbas J Sultân, Muthanna H Al-Dahhan
exaly   +2 more sources

Gas holdup and overall volumetric mass transfer coefficient in a modified reversed flow jet loop reactor

The Canadian Journal of Chemical Engineering, 1995
AbstractExperiments were conducted in a modified reversed flow jet loop reactor having the liquid outlet at the top of the reactor to determine the gas holdup and overall volumetric mass transfer coefficient in the air‐water system. The influence of gas and liquid flow rates, and the draft tube to reactor diameter ratio were studied.
K. Yagna Prasad, T. K. Ramanujam
openaire   +1 more source

Liquid circulation velocity and overall gas holdup in a modified jet loop bioreactor with low density particles

Bioprocess Engineering, 1994
Effect of low density particles on the apparent liquid circulation velocity and overall gas holdup was studied in a modified reversed flow jet loop bioreactor. Experiments were conducted using polyurethane beads, polystyrene particles which are comparable to bioparticles found in biological applications and glass beads. Influence of gas and liquid flow
K. Yagna Prasad, T. K. Ramanujam
openaire   +1 more source

Machine Learning Models with Graphical User Interface for Overall Gas Holdup in Slurry Bubble Column Reactors

This research aimed to develop a comprehensive, data-driven machine learning (ML) models for predicting overall gas holdup in slurry bubble column reactors (SBCRs), addressing a critical challenge. A robust dataset comprising 1938 experimental instances was systematically compiled from 20 peer-reviewed publications (1980-2022) under diverse conditions (
Manoj Kumar Beriya, Shantanu Roy
openaire   +1 more source

04/00515 Development of an artificial neural network correlation for prediction of overall gas holdup in bubble column reactors

Fuel and Energy Abstracts, 2004
openaire   +1 more source