Results 21 to 30 of about 29,070 (268)

Characteristics of Bubbles and Gas Holdup In A Two-Phase Column For Different Liquid Phases [PDF]

open access: yesEngineering and Technology Journal, 2007
Experimental study of gas holdup (Eg), bubble diameter (dvs) interfacial area(a) m-1, small bubble rise velocity (Ubs), and bubble rise velocity (Ubr) in (0.1mi.d) and (1.5m) high column operated at ambient temperature and pressureconditions.
Auroba. Abdullah
doaj   +1 more source

Prediction of Bubble Size Distributions in Large-Scale Bubble Columns Using a Population Balance Model

open access: yesComputation, 2019
A precise estimation of the bubble size distribution (BSD) is required to understand the fluid dynamics in gas-liquid bubble columns at the “bubble scale,” evaluate the heat and mass transfer rate, and support scale-up approaches.
Giorgio Besagni, Fabio Inzoli
doaj   +1 more source

Effect Of Solid Catalyst On Bubble Rise Velocity And Gas- Drift Flux In Three-Phase-Columns [PDF]

open access: yesEngineering and Technology Journal, 2007
The bubble rise velocity and drift flux were measured in 0.051 m i.d glass column with ethanol as the liquid phase, cobalt catalyst as the solid phase in concentration varying from (1.0 to 0.4) vol % in three phase column.
Kamal Ahmad
doaj   +1 more source

Simulation of Methane Mass Transfer in a Bubble Columni Incipient Turbulent Regime Using Comsol Multiphysics®

open access: yesChemical Engineering Transactions, 2021
Bubble column reactors basically consist of a vertical cylinder filled by a liquid phase in which a gas phase is distributed in the liquid at the column bottom by an appropriate distributor system and moves along the column in the form of bubbles.
Carmen De Crescenzo   +7 more
doaj   +1 more source

Experimental and Numerical Investigation of Gas-Liquid Flow in a Rectangular Bubble Column with Centralized Aeration Flow Pattern

open access: yesChemical Engineering Transactions, 2013
Bubble columns are multiphase contact devices for mass and heat transfer, which are intensively used in different industrial areas. Flow and turbulence in these equipments are induced by bubble rise motion.
D.I. Sanchez-Forero   +4 more
doaj   +1 more source

Influence of Liquid Viscosity and Solid Load in a Three-Phase Bubble Column using Stereoscopic Particle Image Velocimetry (Stereo-PIV)

open access: yesChemical Engineering Transactions, 2015
The bubble motion in non-Newtonian fluids is extensively used in many industrial processes. The influence of the liquid viscosity in the hydrodynamic behaviour of bubble columns is related to the bubble formation processes and the tendency to coalescence.
D.I. Sanchez-Forero   +4 more
doaj   +1 more source

Bubble Size Distribution In Gas-Liquid Dispersion Column

open access: yesJournal of Engineering, 2023
The present work investigates the effect of; superficial air velocities of: 1, 3, and 6 cm/s for two types of perforated distributor on hydrodynamic characteristic in a gas-liquid dispersion column of; air-water, and airaqueous-n-propanol solution ...
Thamer J. Mohammed   +2 more
doaj   +1 more source

Characterization of Bubble Size Distributions within a Bubble Column

open access: yesFluids, 2018
The current study experimentally examines bubble size distribution (BSD) within a bubble column and the associated characteristic length scales. Air was injected into a column of water via a single injection tube.
Shahrouz Mohagheghian, Brian R. Elbing
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

Modelling of removal of surfactants from liquid solutions in a bubble column

open access: yesResults in Engineering, 2022
This paper proposes a theoretical model for the separation of a surfactant from water in a bubble column. The proposed model includes both mass balance and adsorption thermodynamics of surfactants on bubble surfaces in the liquid solution (e.i.
Arturo A. García-Figueroa   +4 more
doaj   +1 more source

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