Calibration of the method to measure bubble properties in 2D fluidized beds

被引：5

作者：

Soler, JG ^{[1
]}

Marqués, JJP ^{[1
]}

Ruiz, MG ^{[1
]}

Caicedo, GR ^{[1
]}

机构：

[1] Univ Alcala De Henares, Dept Chem Engn, Madrid 28871, Spain

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 2003年 / 190卷 / 03期

关键词：

fluidization; 2D fluidized bed; bubble properties; CCD camera; digital image analysis;

D O I：

10.1080/00986440302138

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The purpose of the present work is to demonstrate the reliability of a digital image processing technique. A CCD (Charge Coupled Device) is used to perform an investigation on the bubble properties of a 2D gas-solid fluidized bed, and the aim of this study is to establish a criterion in order to reject all images that could not be interpreted as bubbles. This may lead to an alteration of the information obtained. The two-dimensional fluidized bed is 20 cm wide and at least 20 cm high, and the field of view of the camera is 12.54 cm wide and 12.99 cm high. In this way, bubbles could be totally or partially placed into this field of view so that a partial image of a bubble could be analyzed as a whole bubble. With this calibration, a geometric decision criterion for the rejection of nonbubble images was developed.

引用

页码：285 / 298

页数：14

共 40 条

[21] EFFECT OF BUBBLE COALESCENCE ON THROUGHFLOW VELOCITY IN A 2-D FLUIDIZED-BED
GERA, D
GAUTAM, M
POWDER TECHNOLOGY, 1995, 83 (01) : 49 - 53
[22] Numerical Simulation of Bubble Formation at a Single Orifice in Gas-fluidized Beds with Smoothed Particle Hydrodynamics and Finite Volume Coupled Method
Chen, F. Z.
Qiang, H. F.
Gao, W. R.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES, 2015, 104 (01): : 41 - 68
[23] Numerical simulation of bubble behavior in a quasi-2D fluidized bed using a bubble-based EMMS model
Wang, Hao
Lu, Youjun
PARTICUOLOGY, 2019, 46 : 40 - 54
[24] HYDRODYNAMICS OF MULTIPLE JET SYSTEMS IN A 2D GAS SOLID FLUIDIZED BED
Brown, Steven L.
Lattimer, Brian Y.
PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, VOL 2: FORA, 2012, : 89 - 97
[25] Comparison of CFD-DEM and TFM simulations of single bubble injection in 3D gas-fluidized beds with MRI results
Xi, K.
Guo, Q.
Boyce, C. M.
CHEMICAL ENGINEERING SCIENCE, 2021, 243
[26] Simulation of gas-solid flow in 2D/3D bubbling fluidized beds by combining the two-fluid model with structure-based drag model
Lv, Xiaolin
Li, Hongzhong
Zhu, Qingshan
CHEMICAL ENGINEERING JOURNAL, 2014, 236 : 149 - 157
[27] Lateral solids meso-mixing in pseudo-2D fluidized beds by means of TFM simulations
Hernandez-Jimenez, F.
Sanchez-Prieto, J.
Cano-Pleite, E.
Soria-Verdugo, A.
POWDER TECHNOLOGY, 2018, 334 : 183 - 191
[28] Characterization of the particle-wall frictional forces in pseudo-2D fluidized beds using DEM
Hernandez-Jimenez, F.
Li, T.
Cano-Pleite, E.
Rogers, W.
Acosta-Iborra, A.
CHEMICAL ENGINEERING SCIENCE, 2014, 116 : 136 - 143
[29] Fluidization of biomass and inert particle mixtures in a pseudo 2D pressured fluidized bed
Zhu, Xiaoli
Song, Guosheng
Shi, Zhixin
Jiang, Xijian
Wang, Haigang
Ocone, Raffaella
Wang, Zhenbo
POWDER TECHNOLOGY, 2025, 453
[30] Analysis of the bubbling behaviour of 2D gas solid fluidized beds Part II. Comparison between experiments and numerical simulations via Digital Image Analysis Technique
Busciglio, Antonio
Vella, Giuseppa
Micale, Giorgio
Rizzuti, Lucio
CHEMICAL ENGINEERING JOURNAL, 2009, 148 (01) : 145 - 163

← 1 2 3 4 →