Results 31 to 40 of about 18,394 (248)

Investigation and prediction of slug flow characteristics in highly viscous liquid and gas flows in horizontal pipes [PDF]

open access: yes, 2015
Slug flow characteristics in highly viscous liquid and gas flow are studied experimentally in a horizontal pipe with 0.074 m ID and 17 m length. Results of flow regime map, liquid holdup and pressure gradient are discussed and liquid viscosity effects ...
Lao, Liyun, Yeung, H., Zhao, Y.
core   +1 more source

A Hydrodynamic Study in a Sieve Plate Sectionalized Bubble Column [PDF]

open access: yesEngineering and Technology Journal, 2011
The sectionalization of conventional bubble columns to tray bubble column by perforated trays has been used in chemical, biochemical, and petroleum processes as an effective way to improve the gas-liquid contacting efficiency, and reduce liquid ...
Burhan Sadeq Abdulrazzaq
doaj   +1 more source

Hydraulic Properties of Froth Layer on a Perforated Plate [PDF]

open access: yes, 1983
This paper deals with the comparison of gas-liquid holdup and froth height on a perforated plate under various operational conditions such as liquid stagnant, cocurrent, countercurrent and crosscurrent gas-liquid flow system.
Miyahara, Toshiro, Takahashi, Teruo
core   +1 more source

Effect of Surfactants on Gas Holdup in Shear-Thinning Fluids

open access: yesInternational Journal of Chemical Engineering, 2017
In this study, the gas holdup of bubble swarms in shear-thinning fluids was experimentally studied at superficial gas velocities ranging from 0.001 to 0.02 m·s−1.
Shaobai Li, Siyuan Huang, Jungeng Fan
doaj   +1 more source

Gas-liquid mass transfer : a comparison of down-and up-pumping axial flow impellers with radial impellers [PDF]

open access: yes, 2004
The performance of a down- and up-pumping pitched blade turbine and A315 for gas-liquid dispersion and mass transfer was evaluated and then compared with that of Rushton and Scaba turbines in a small laboratory scale vessel.
Aubin   +34 more
core   +2 more sources

Hydrodynamic character of internal-loop airlift reactor

open access: yes浙江大学学报. 农业与生命科学版, 2003
Gas holdup and liquid circulation velocity are the mostly important hydrodynamic characters and state parameters of internal-loop airlift reactor. In this paper, the influence of gas holdup and liquid circulation velocity on the performance of the ...
LU Gang, ZHENG Ping
doaj   +1 more source

Flow generated by radial flow impellers: PIV measurements and CFD simulations [PDF]

open access: yes, 2004
Particle image velocimetry (PIV) and computational fluid dynamics (CFD) have been used to investigate the single phase and gas-liquid flow generated by a Scaba SRGT turbine.
Aubin, Joelle   +6 more
core   +1 more source

Hydrodynamics of a three-phase external-loop airlift bioreactor [PDF]

open access: yes, 1999
The effect of the distributing plate orifice diameter, airflow rate, solids loading and solids density on the hydrodynamic characteristics - gas holdup, circulation time and liquid velocity - of a three-phase external-loop airlift reactor was ...
Bando   +21 more
core   +3 more sources

Hydrodynamic Considerations in an External Loop Airlift Reactor with a Modified Downcomer [PDF]

open access: yes, 2010
Gas holdup and superficial liquid velocity in the downcomer and riser are studied for an external loop airlift reactor with a downcomer-to-riser area ratio of 1:16. Two downcomer configurations are investigated over a range of superficial gas velocities (
Heindel, Theodore   +2 more
core   +3 more sources

Effect of Electrolyte Concentration on Bubble Size and Gas-Liquid Interfacial Area in Bubble Column

open access: yesTikrit Journal of Engineering Sciences, 2005
The optimum conditions of bubble column would be the ones that enhance mass transfer and this is accomplished by maximizing gas-liquid interfacial area. In the present work the effect of electrolyte concentration (aqueous solution of sodium chloride NaCl
Farah T. Jassem
doaj   +1 more source

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