Experimental and computational study on the bubble behavior in a 3-D fluidized bed

A Acosta-Iborra, C Sobrino… - Chemical Engineering …, 2011 - Elsevier
The results from a two-fluid Eulerian–Eulerian three-dimensional (3-D) simulation of a
cylindrical bed, filled with Geldart-B particles and fluidized with air in the bubbling regime …

Bubble characterization in the gas-solid fluidized bed using an intrusive acoustic emission sensor array

T Sheng, X Fan, Y Yang, Z Huang, J Sun… - Chemical Engineering …, 2022 - Elsevier
Bubble behaviors in fluidized beds were investigated by a self-designed double-core
screened waveguide. Experiments presented that, the bubble dome and vortex would …

[HTML][HTML] Numerical simulation of a 3-D gas-solid fluidized bed: Comparison of TFM and CPFD numerical approaches and experimental validation

JI Córcoles, A Acosta-Iborra… - Advanced Powder …, 2021 - Elsevier
This paper presents the results of a 3-D numerical simulation of a freely bubbling fluidized
bed, based on the Eulerian–Lagrangian approach, using the software Barracuda (CPFD …

Bubble characterization in a fluidized bed by means of optical probes

M Rüdisüli, TJ Schildhauer, SMA Biollaz… - International Journal of …, 2012 - Elsevier
The objective of this paper is to show and discuss the applicability of optical probes to
measure the bubble size and bubble rise velocity in fluidized beds. Therefore, a bubble …

Numerical investigation of bubble dynamics during biomass gasification in a bubbling fluidized bed

S Yang, H Wang, Y Wei, J Hu… - … Sustainable Chemistry & …, 2019 - ACS Publications
Bubbles play a significant role in the performance of the bubbling fluidized bed. By
incorporating the CFD-DEM coupling model with heat transfer and chemical reactions …

Correlating bubble size and velocity distribution in bubbling fluidized bed based on X-ray tomography

S Maurer, D Gschwend, EC Wagner… - Chemical engineering …, 2016 - Elsevier
The design and scale-up of bubbling fluidized bed reactors remain an ongoing challenge,
as the bubble size and velocity have to be known to enable a reliable design of this reactor …

Bubble size distribution in two-dimensional gas–solid fluidized beds

S Movahedirad, A Molaei Dehkordi… - Industrial & …, 2012 - ACS Publications
In this article, the digital image analysis (DIA) technique has been used to study the bubble
size and bubble size distribution evolution in a pseudo-two-dimensional gas–solid fluidized …

Monte Carlo simulation of the bubble size distribution in a fluidized bed with intrusive probes

M Rüdisüli, TJ Schildhauer, SMA Biollaz… - International Journal of …, 2012 - Elsevier
Intrusive probes such as optical probes are commonly used to measure the bubble size
distribution in a fluidized bed. However, usually only a chord length distribution is measured …

Comparison of bubble growth obtained from pressure fluctuation measurements to optical probing and literature correlations

M Rüdisüli, TJ Schildhauer, SMA Biollaz… - Chemical engineering …, 2012 - Elsevier
Pressure fluctuation measurements (PFM) along with optical probing (OP) are conducted in
a 145mm ID glass column fluidized bed with Geldart B particles to evaluate and compare the …

Simultaneous measurements of particle charge density and bubble properties in gas-solid fluidized beds by dual-tip electrostatic probes

C He, XT Bi, JR Grace - Chemical engineering science, 2015 - Elsevier
The aim of this work was to develop a new dual-tip electrostatic probe for in-situ
measurements of particle charge density and bubble properties in bubbling fluidized beds …