Simulation of coalescence, break up and mass transfer in bubble columns by using the Conditional Quadrature Method of Moments in OpenFOAM [PDF]
, 2013 The evaluation of the mass transfer rates and the fluid-dynamics aspects of bubble columns are strongly affected by the intrinsic poly-dispersity of the gas phase, namely the different dispersed bubbles are usually distributed over a certain range of ...
Buffo, Antonio +3 more
core
Effect of surface modification on single-walled carbon nanotube retention and transport in saturated and unsaturated porous media [PDF]
, 2012 This work investigated the effect of different surface modification methods, including oxidization, surfactant coating, and humic acid coating, on single-walled carbon nanotube (SWNT) stability and their mobility in granular porous media under various ...
Gao, Bin +4 more
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Prediction of bubble size in Bubble columns using Artificial Neural Network
Iraqi Journal of Chemical and Petroleum Engineering, 2009 In the literature, several correlations have been proposed for bubble size prediction in bubble columns. However these correlations fail to predict bubble diameter over a wide range of conditions. Based on a data bank of around 230 measurements collected
Nada Sadoon Ahmed zeki
doaj
FluidsThis study aims to contribute to the optimization of bio-methanation in bubble columns, making it a more viable alternative to stirred tank reactors. The primary challenge to be addressed is the enhancement of mass transfer, which strongly depends on ...
Florian Klapal, Mark Werner Hlawitschka
doaj +1 more source
Dynamic models for start-up operations of batch distillation columns with experimental validation [PDF]
, 2004 The simulation of batch distillation columns during start-up operations is a very challenging modelling problem because of the complex dynamic behaviour. Only few rigorous models for distillation columns start-up are available in literature and generally
Cabassud, Michel +4 more
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Bubble Formation Characteristic of Submerged Single-Hole Orifice in Aerosol Suspension
Frontiers in Energy Research, 2019 Bubble columns are regarded as an effective containment filtration method. A large amount of radioactive aerosol will be retained in a liquid pool and generate decay heat.
Qingyang Sun +3 more
doaj +1 more source
ChemEngineering, 2022 There have been studies recently on bubble-column scrubbers with low cost and high efficiency for the absorption and treatment of hazardous gases in the event of a chemical spill.
Ga-young Jung +3 more
doaj +1 more source
Heat Transfer Between Gas and Liquid in a Bubble Column
Chemical Engineering Transactions, 2017 Multiphase contactors, e.g. bubble columns, are often used in operations accompanied by heat transfer between the phases. Literature studies have divided heat transfer measurements in two- and three-phase systems into: (i) estimations of bed-to-wall heat
M. Zizka, R. Sulc, P. Ditl
doaj +1 more source
Accuracy of bubble velocity measurement with a four-point optical fibre probe [PDF]
, 2008 For the operation of high void fraction bubbly flows in bubble\ud columns, insight in primary parameters such as bubble size,\ud shape and velocity as well as gas volume fraction is essential.\ud At high gas volume fractions the flow system becomes\ud ...
Bai, Wei +3 more
core +1 more source
Effect of surfactants on liquid side mass transfer coefficients [PDF]
, 2005 In the present paper, the effect of liquid properties (surfactants) on bubble generation phenomenon, interfacial area and liquid side mass transfer coefficient was investigated.
Hebrard, Gilles +4 more
core +3 more sources