Results 71 to 80 of about 2,370 (195)

Validation of Models to describe Local Transport Phenomena in Bubble Columns [PDF]

open access: yes, 2013
The purpose of this master thesis is to analyze existing models of gas hold-up and volumetric mass transfer. After extensive literature research, the models are quantitatively and qualitatively compared, underlining whether important aspects are ...
Nascimbeni, Emilio
core  

Gas Holdup and liquid Phase RTD Studies in Multistage Bubble Columns

open access: yesJournal of Engineering and Sustainable Development, 2012
Installation of perforated sieve plates into a bubble column has the effect of introducing structure into an otherwise chaotic hydrodynamic behavior.
Burhan Sadeq Abdulrazzaq
doaj  

Prediction of gas holdup in the three-phase fluidized bed: air/Newtonian and non-Newtonian liquid systems

open access: yes, 2010
Prediction of gas holdup in the three-phase fluidized bed: air/Newtonian and non-Newtonian liquid systems The application of the three-phase fluidization technology in wastewater treatment and other biochemical processes has been regularly
V. Sivakumar   +2 more
core   +1 more source

Pressure drop and water holdup of Malaysian crude oil and water two-phase flow in pipes

open access: yes, 2014
Understanding the pressure drop and water holdup of crude oil-water flow in a pipe is crucial to many engineering applications. Free water in contact with the pipes' wall can cause erosion or corrosion problems.
Izwan Ismail, Ahmad Shamsul   +3 more
core   +1 more source

Experimental and Prediction Using Artificial Neural Network of Bed Porosity and Solid Holdup in Viscous 3-Phase Inverse Fluidization

open access: yesAl-Khawarizmi Engineering Journal, 2016
In the present investigation, bed porosity and solid holdup in viscous three-phase inverse fluidized bed (TPIFB) are determined for aqueous solutions of carboxy methyl cellulose (CMC) system using polyethylene and polypropylene as a particles with low ...
Amer A. Abdulrahman
doaj  

Experimental and Prediction Using Artificial Neural Network of Bed Porosity and Solid Holdup in Viscous 3-Phase Inverse Fluidization

open access: yesAl-Khawarizmi Engineering Journal, 2017
In the present investigation, bed porosity and solid holdup in viscous three-phase inverse fluidized bed (TPIFB) are determined for aqueous solutions of carboxy methyl cellulose (CMC) system using polyethylene and polypropylene as  a particles with low ...
Amer A. Abdulrahman
doaj  

Predicting slug liquid holdup in a two-phase gas–liquid vertical flow

open access: yesJournal of Engineering and Applied Science
The accuracy of existing liquid holdup models is limited to the range of data used in their development. In this study, a dynamic model for predicting liquid holdup in a two-phase gas liquid vertical flow is developed using artificial neural networks and
Nicholas N. Omeh   +5 more
doaj   +1 more source

Gas holdup and flow patterns in three phase bubble columns

open access: yes, 1988
The main objective of this research is to determine the effect of solids on gas holdup and flow pattern in bubble columns. The other objective is to study the effect of gas distributors on the above parameters.
Mikkilineni, S., Knickle, H. N.
core  

Optimization of Gas–Water Two-Phase Holdup Calculation Methods for Upward and Horizontal Large-Diameter Wells

open access: yes
During natural gas development, the gas–water two-phase flows in upward and horizontal wellbores are complex and variable. The accurate calculation of the water holdup in each production layer using appropriate methods based on the logging data ...
Junfeng Liu   +4 more
core   +1 more source

Holdup studies in three-phase fluidized beds and related systems

open access: yes, 1972
Previous research in three-phase fluidization has provided some experimental data on individual phase holdups, but no unified bed model for predicting these holdups under a variety of circumstances.
Bhatia, Vinay Kuma
core  

Home - About - Disclaimer - Privacy