Results 1 to 10 of about 11,163 (118)

Computational Fluid Dynamics Modelling of Two-Phase Bubble Columns: A Comprehensive Review

open access: yesFluids, 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
exaly   +3 more sources

Mini Bubble Columns for Miniaturizing Scale‐Down [PDF]

open access: yesEngineering in Life Sciences
The 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
doaj   +2 more sources

Using a Lagrangian-Lagrangian approach for studying flow behavior inside a bubble column

open access: yesNuclear 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
doaj   +1 more source

Classification of gas dispersion states via deep learning based on images obtained from a bubble sampler

open access: yesChemical 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
doaj   +1 more source

Fluid Dynamic in Bubble Columns with Heat Exchanger Internals [PDF]

open access: yesEngineering 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
doaj   +1 more source

Experimental Study of Simultaneous Heat and Mass Transfer in Falling Film and Bubble Mode (LiCl) Absorbers [PDF]

open access: yesEngineering and Technology Journal, 2012
The study involves lithium-Chloride absorption process for the falling film and bubble columns absorbers, working at the same operating conditions. The results obtained were used to analyze the transfer process during the absorption of water vapor in the
Kamal M. Ahmad   +2 more
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

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

Investigation of Operating Parameters’ Effects on Bubble Characteristics in a Co-Current Downflow Bubble Column [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
Bubble columns are frequently employed as multiphase reactors and gas-liquid contactors. In the bubble column, gas is dispersed into the liquid phase. The dispersion of gas into a liquid is the function of bubble size and its distribution.
Rohit Meshram   +3 more
doaj   +1 more source

Prediction of Small Bubble Holdups in Bubble Columns Operated with Various Organic Liquids at Both Ambient and Elevated Pressures and Temperatures

open access: yesFluids, 2023
This article focuses on the prediction of the small bubble holdups (assuming the existence of two major bubble classes) in two bubble columns (0.289 m in ID and 0.102 m in ID), operated with organic liquids under various conditions (including high ...
Stoyan Nedeltchev
doaj   +1 more source

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