1
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Effect of Metal Anti-wear Device on the water wall erosion in CFB Boiler. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2
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Study on liquid-solid fluidisation behaviour of coarse coal particles: Experiment and CFD simulation. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Experimental and numerical simulation study on the hydrodynamic characteristics of spherical and irregular-shaped particles in a 3D liquid-fluidized bed. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1234-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Kromah V, Powoe S, Khosravi R, Neisiani AA, Chelgani SC. Coarse particle separation by fluidized-bed flotation: A comprehensive review. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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5
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Kia Lashaki M, Sayyad Amin J, Zendehboudi S. Numerical simulation of homogeneous fluidization behaviour of Geldart Group A particles in gas tapered fluidized beds. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Sohrab Zendehboudi
- Faculty of Engineering and Applied Science Memorial University St. John's NL Canada
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6
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CFD Modeling and Simulation of the Hydrodynamics Characteristics of Coarse Coal Particles in a 3D Liquid-Solid Fluidized Bed. MINERALS 2021. [DOI: 10.3390/min11060569] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, a Eulerian-Eulerian liquid-solid two-phase flow model combined with kinetic theory of granular flow was established to study the hydrodynamic characteristics and fluidization behaviors of coarse coal particles in a 3D liquid-solid fluidized bed. First, grid independence analysis was conducted to select the appropriate grid model parameters. Then, the developed computational fluid dynamics (CFD) model was validated by comparing the experimental data and simulation results in terms of the expansion degree of low-density fine particles and high-density coarse particles at different superficial liquid velocities. The simulation results agreed well with the experimental data, thus validating the proposed CFD mathematical model. The effects of particle size and particle density on the homogeneous or heterogeneous fluidization behaviors were investigated. The simulation results indicate that low-density fine particles are easily fluidized, exhibiting a certain range of homogeneous expansion behaviors. For the large and heavy particles, inhomogeneity may occur throughout the bed, including water voids and velocity fluctuations.
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7
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Xi K, Guo Q, Boyce CM. Comparison of Two-Fluid Model Simulations of Freely Bubbling Three-Dimensional Gas-Fluidized Beds with Magnetic Resonance Imaging Results. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00050] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kenan Xi
- Department of Chemical Engineering, Columbia University, New York, New York 10027-6902, United States
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, P.R. China
| | - Qiang Guo
- Department of Chemical Engineering, Columbia University, New York, New York 10027-6902, United States
| | - Christopher M. Boyce
- Department of Chemical Engineering, Columbia University, New York, New York 10027-6902, United States
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8
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Guo Q, Padash A, Boyce CM. A two fluid modeling study of bubble collapse due to bubble interaction in a fluidized bed. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116377] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Numerical and experimental investigations of instability in a spouted bed with non-spherical particles. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.10.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Islam MT, Nguyen AV. Effect of particle size and shape on liquid–solid fluidization in a HydroFloat cell. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.10.080] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Shrestha S, Zhou Z. Effect of particle shape on bubble dynamics in bubbling fluidized bed. EPJ WEB OF CONFERENCES 2021. [DOI: 10.1051/epjconf/202124906012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Particle shape can significantly affect the bubble dynamics of bubbling fluidized beds (BFB). In this paper, findings obtained from simulations using CFD-DEM are summarized to discuss the effect of particle shape on bubble dynamics and bubble properties such as bubble size, shape and velocity at a single orifice and uniform fluidized bed. Particles with aspect ratios at 0.5 (oblate), 1 (spherical) and 2 (prolate) are employed to represent disc-like, spherical and rod-like particles, respectively. Both single jet and uniform fluidized bed simulations demonstrate that the bubble forming/rising regions, bubble coalescence locations, and bubble splitting phenomena are significantly influenced by particle shape. The CFD-DEM results for bubble size and bubble velocity show good agreement with literature correlations.
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Shrestha S, Kuang S, Yu A, Zhou Z. Bubble dynamics in bubbling fluidized beds of ellipsoidal particles. AIChE J 2019. [DOI: 10.1002/aic.16736] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Siddhartha Shrestha
- ARC Research Hub for Computational Particle Technology, Department of Chemical Engineering Monash University Victoria Australia
| | - Shibo Kuang
- ARC Research Hub for Computational Particle Technology, Department of Chemical Engineering Monash University Victoria Australia
| | - Aibing Yu
- ARC Research Hub for Computational Particle Technology, Department of Chemical Engineering Monash University Victoria Australia
| | - Zongyan Zhou
- ARC Research Hub for Computational Particle Technology, Department of Chemical Engineering Monash University Victoria Australia
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13
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Particle shape effect on bubble dynamics in central air jet pseudo-2D fluidized beds: A CFD-DEM study. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.02.030] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Fitzgerald BW, Zarghami A, Mahajan VV, Sanjeevi SK, Mema I, Verma V, El Hasadi YM, Padding JT. Multiscale simulation of elongated particles in fluidised beds. CHEMICAL ENGINEERING SCIENCE: X 2019. [DOI: 10.1016/j.cesx.2019.100019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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15
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Wu M, Guo Q, Zhao M, Chen Y. Study on the flow behavior of irregular plastic particles in a spout-fluid bed with a draft tube. PARTICULATE SCIENCE AND TECHNOLOGY 2018. [DOI: 10.1080/02726351.2017.1331283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Man Wu
- Key Laboratory of Clean Chemical Processing of Shandong Province, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, PR China
| | - Qingjie Guo
- Key Laboratory of Clean Chemical Processing of Shandong Province, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, PR China
| | - Meijie Zhao
- Key Laboratory of Clean Chemical Processing of Shandong Province, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, PR China
| | - Yizhong Chen
- Key Laboratory of Clean Chemical Processing of Shandong Province, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, PR China
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