Results 41 to 50 of about 833,093 (205)

Scale-up of oscillatory flow mixing [PDF]

open access: yes, 2011
Oscillatory Flow Mixing is a recent development in mixing technology which has evolved over the past decade. It has a number of similarities to other mixing technologies, particularly pulsed and reciprocating plate columns, but at the laboratory scale ...

core   +2 more sources

Scale Effects on the Hydrodynamics of Bubble Column [PDF]

open access: yesEngineering and Technology Journal, 2009
The main object of this study is to investigate the influence of the columngeometric and operating variables ( i.e., column diameter, superficial gas velocityand liquid viscosity) on the hydrodynamic parameter ( i.e.
Farah S. Jameel, Mohammad F. Abid
doaj   +1 more source

Measurement of Axial Dispersion Coefficient of the Continuous Phase in a Pulsed Disc and Doughnut Column Using Dispersion Model with Radiotracer Technique [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2016
High efficiency and low required area for the pulsed columns are interesting and useful especially in nuclear industries in spite of exposure and radiation protection requirements.
M Tabasi   +3 more
doaj  

Hydrodynamics in spray and packed liquid-liquid extraction columns: A review

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2019
This work provides a review of hydrodynamic characteristics such as the slip velocity, the dispersed-phase holdup, mean drop size, and axial dispersion of non-mechanically agitated liquid-liquid (L-L) extractors, with special reference to spray and ...
Milan N. Sovilj   +2 more
doaj   +1 more source

Gas-liquid mass transfer : influence of sparger location [PDF]

open access: yes, 2004
The performance of three sparger diameters (DS = 0.6D, DS = D, DS = 1.6D) in combination with three positions (below, above or level with the impeller) for gas-liquid dispersion and mass transfer were evaluated in the case of the Rushton turbine and the ...
Poux, Martine   +3 more
core   +1 more source

Axial dispersion in curved channels in the presence of pulsating flow [PDF]

open access: yes, 2022
A narrow residence time distribution (RTD) is desirable in several chemical engineering processes. However, in systems operating at low Reynolds number, axial dispersion can be significant.
Rossi, Damiano   +4 more
core   +3 more sources

Effect of Solid Properties on Axial Liquid Dispersion in Bubble Column

open access: yesAl-Khawarizmi Engineering Journal, 2012
Experiments were conducted to study axial liquid dispersion coefficient in slurry bubble column of 0.15 m inside diameter and 1.6 m height using perforated plate gas distributor of 54 holes of a size equal to 1 mm diameter and with a 0.24 free area of ...
Ali Raad Mohammed Jawad
doaj   +2 more sources

Generalized semi-opened axial dispersion model [PDF]

open access: yes, 2012
The axial dispersion model (ADM) is studied and then generalized by a new form of the left boundary condition of semi-open flow system. The resulting parameter driven model covers the traditional axial models: axial closed-opened dispersion model with ...
Jakeš, B., Kukal, J., Bártová, D.
core  

Residence time distribution measurements in an external-loop airlift reactor: Study of the hydrodynamics of the liquid circulation induced by the hydrogen bubbles [PDF]

open access: yes, 2011
A detailed study of the residence time distribution (RTD) analysis of liquid phase has been performed in an external-loop airlift reactor of 20 L nominal volume, regarded as a global unit and discriminating its different sections (riser, gas–liquid ...
A.H. Essadki   +7 more
core   +1 more source

Flow and axial dispersion simulation for traveling axisymmetric Taylor vortices

open access: yes, 1998
Numerical experiments using a finite difference method were carried out to determine the motion of axisymmetric Taylor vortices for narrow-gap Taylor vortex flow.
Rudman, M, Howes, T
core   +1 more source

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