Detailed modeling of hydrodynamics mass transfer and chemical reactions in a bubble column using a discrete bubble model [PDF]
, 2005 A 3D discrete bubble model is adopted to investigate complex behavior involving hydrodynamics, mass transfer and chemical reactions in a gas¿liquid bubble column reactor.
Darmana, D., Deen, N.G., Kuipers, J.A.M.
core +8 more sources
Bubble dissolution in horizontal turbulent bubbly flow in domestic central heating system [PDF]
, 2013 In a domestic central heating system, the phenomenon of microbubble nucleation and detachment on the surface of a boiler heat exchanger finds its origins in the high surface temperature of the wall and consequential localised super saturation ...
Brunel University +4 more
core +1 more source
Flotation bubble size distribution rules with ultrasonic radiation
矿业科学学报, 2018 By a self-made ultrasonic flotation experimental device and image processing method,flotation micro-bubble size distribution and the relationship between rising velocity and size has been investigated under different ultrasonic frequencies (28 kH、60 kHz ...
Wang Weidong, Zhang Nan
doaj +1 more source
On the reliability of an optical fibre probe in bubble column under industrial relevant operating conditions [PDF]
, 2007 When bubble columns are operated under industrial relevant conditions (high gas and liquid flow rates, large bubbles and vortices,. . .), local data, and especially bubble size values, are difficult to obtain.
Augier, Frédéric +4 more
core +2 more sources
Prediction of Bubble Sizes in Bubble Columns with Machine Learning Methods [PDF]
Chemie Ingenieur Technik, 2021 AbstractTwo Machine Learning algorithms – LASSO and Random Forest – are applied to derive regression models for the prediction of gas bubble diameters using supervised learning techniques. Experimental data obtained from wire‐mesh sensor (WMS) measurements in a deionized water/air system serve as the data base.
Biessey, Philip (Dr.-Ing.) +4 more
openaire +2 more sources
Effect of bubble size on bubble rising velocity and stagnation in a granular bed
Chemical Engineering Journal Advances, 2022 The hydrodynamics of gas and liquid flow through a granular bed were proposed in this work. By introducing optical principles, a high-speed camera was used to capture bubbles at different heights in a granular bed. The effect of bubble size on the rising
Yingchun Zhang +3 more
doaj +1 more source
Prediction of Bubble Size Distribution in a Batch Foaming System of Polystyrene-Supercritical CO2 [PDF]
علوم و تکنولوژی پلیمر, 2023 Hypothesis: One of the existing challenges in the foam production industry is to achieve the desired mechanical and thermal insulation properties required, which are directly related to cellular density, size, and distribution of bubbles.
Amir Fadaei +2 more
doaj +1 more source
Improving the Performance of Surface Flow Generated by Bubble Plumes
Fluids, 2021 Gas–liquid two-phase flow is widely used in many engineering fields, and bubble dynamics is of vital importance in optimizing the engineering design and operating parameters of various adsorptive bubble systems.
Hassan Abdulmouti
doaj +1 more source
Control of bubble size and bubble number in bubble electrospinning
Computers & Mathematics with Applications, 2012 AbstractThe surface tension of a bubble depends upon its size; a smaller bubble requires a smaller electronic force for fabrication of ultrafine fibers using bubble electrospinning. The electronic field triggers rupture of interacted bubbles to form daughter bubble cascades, so a very low voltage is needed for nanofiber fabrication.
He, Ji-Huan, Liu, Yong
openaire +1 more source
Consistency in statistical moments as a test for bubble cloud clustering [PDF]
, 2011 Frequency dependent measurements of attenuation and/or sound speed through clouds of gas bubbles in liquids are often inverted to find the bubble size distribution and the void fraction of gas.
Bradley, David L +2 more
core +3 more sources