Results 11 to 20 of about 13,307 (305)
Computational Fluid Dynamics Modelling of Two-Phase Bubble Columns: A Comprehensive Review
Fluids, 2023 Bubble columns are used in many different industrial applications, and their design and characterisation have always been very complex. In recent years, the use of Computational Fluid Dynamics (CFD) has become very popular in the field of multiphase ...
Giorgio Besagni +2 more
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Prediction of Bubble Size Distributions in Large-Scale Bubble Columns Using a Population Balance Model [PDF]
Computation, 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
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Mini Bubble Columns for Miniaturizing Scale‐Down [PDF]
Engineering in Life SciencesThe successful scale‐up of biotechnological processes from laboratory to industrial scale is crucial for translating innovation to practice. Scale‐down simulators have emerged as indispensable tools in this endeavor, enabling the evaluation of potential ...
Moritz Wild, Ralf Takors
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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
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“Bubble Bunch” phenomenon in operation of a bubble column
Open Chemistry, 2009 Abstract While studying the operation of a rectangular bubble column in laboratory scale, it was observed that under certain circumstances tiny bubbles attach to larger bubbles without causing them to coalesce. In other words, bubbles with large diameters (d > 5 mm) swept tiny bubbles (d
Bastani Dariush +2 more
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Three-Dimensional CFD Simulations for Characterization of a Rectangular Bubble Column with a Unique Gas Distributor Operating at Extremely Low Superficial Gas Velocities [PDF]
MicromachinesIn the present work, three-dimensional (3D) simulations have been performed for the characterization of a rectangular column for a uniform gas distributor with µm-sized holes at a ratio of 5.
Arijit Ganguli +2 more
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Using a Lagrangian-Lagrangian approach for studying flow behavior inside a bubble column
Nuclear Engineering and Technology, 2023 Bubble columns are widely encountered in several industries, especially in the field of nuclear safety. The Eulerian-Eulerian and the Eulerian-Lagrangian methods are commonly used to investigate bubble columns.
YoungWoo Son, Cheol-O Ahn, SangHwan Lee
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Chemical Engineering Journal Advances, 2021 The gas dispersion state within the bubble columns and reactors greatly affects their performance. A bubble sampler is a useful device to measure gas dispersion in the operating bubble columns and reactors as it has an adjustable sampling part that ...
Changzhi Bai +3 more
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Fluid Dynamic in Bubble Columns with Heat Exchanger Internals [PDF]
Engineering and Technology Journal, 2014 The effects of vertical cooling internals on the gas hydrodynamics was studied in gas-liquid system (bubble columns) for column diameters, 15 and 30 cm in the absence and presence of internals (the % occluded area by internals 5, 10, and 20%).
Burhan Sadeq Abdulrazzaq
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Bubble properties of heterogeneous bubbly flows in a square bubble column [PDF]
AIP Conference Proceedings, 2010 The present work focuses on the measurements of bubble properties in heterogeneous bubbly flows in a square bubble column. A four-point optical fibre probe was used for this purpose. The accuracy and intrusive effect of the optical probe was investigated first.
W. Bai +7 more
openaire +2 more sources