Experimental validation of CFD simulations of a lab-scale fluidized-bed reactor with and without side-gas injection

AIChE Journal ◽  
2009 ◽  
Vol 56 (6) ◽  
pp. 1434-1446 ◽  
Author(s):  
Jian Min ◽  
Joshua B. Drake ◽  
Theodore J. Heindel ◽  
Rodney O. Fox
Keyword(s):  
Fluidized Bed ◽  
Experimental Validation ◽  
Gas Injection ◽  
Fluidized Bed Reactor ◽  
Cfd Simulations

Biomass Pyrolysis in a Fluidized Bed Reactor. Part 2:  Experimental Validation of Model Results

2005 ◽  
Vol 44 (23) ◽  
pp. 8786-8795 ◽  
Author(s):  
Xiaoquan Wang ◽  
Sascha R. A. Kersten ◽  
Wolter Prins ◽  
Wim P. M. van Swaaij
Keyword(s):  
Fluidized Bed ◽  
Experimental Validation ◽  
Fluidized Bed Reactor ◽  
Biomass Pyrolysis

Influence of Distributed Secondary Gas Injection on the Performance of a Bubbling Fluidized-Bed Reactor

2008 ◽  
Vol 47 (10) ◽  
pp. 3601-3618 ◽  
Author(s):  
D. Christensen ◽  
J. Nijenhuis ◽  
J. R. van Ommen ◽  
M.-O. Coppens
Keyword(s):  
Fluidized Bed ◽  
Gas Injection ◽  
Fluidized Bed Reactor ◽  
Bubbling Fluidized Bed

Three-dimensional CFD simulation and experimental validation of particle segregation in CFB riser

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Krishna Kant Dwivedi ◽  
Achintya Kumar Pramanick ◽  
Malay Kumar Karmakar ◽  
Pradip Kumar Chatterjee
Keyword(s):  
Fluidized Bed ◽  
Experimental Validation ◽  
Cfd Simulation ◽  
Particle Flow ◽  
Experimental Investigations ◽  
Gas Velocity ◽  
Particle Segregation ◽  
Cfd Simulations ◽  
Content Type ◽  
Drag Models

Purpose The purpose of this paper is to perform the computational fluid dynamics (CFD) simulation with experimental validation to investigate the particle segregation effect in abrupt and smooth shapes circulating fluidized bed (CFB) risers. Design/methodology/approach The experimental investigations were carried out in lab-scale CFB systems and the CFD simulations were performed by using commercial software BARRACUDA. Special attention was paid to investigate the gas-particle flow behavior at the top of the riser with three different superficial velocities, namely, 4, 6 and 7.7 m/s. Here, a CFD-based noble simulation approach called multi-phase particle in cell (MP-PIC) was used to investigate the effect of traditional drag models (Wen-Yu, Ergun, Wen-Yu-Ergun and Richardson-Davidson-Harrison) on particle flow characteristics in CFB riser. Findings Findings from the experimentations revealed that the increase in gas velocity leads to decrease the mixing index inside the riser. Moreover, the solid holdup found more in abrupt riser than smooth riser at the constant gas velocity. Despite the more experimental investigations, the findings with CFD simulations revealed that the MP-PIC approach, which was combined with different drag models could be more effective for the practical (industrial) design of CFB riser. Well agreement was found between the simulation and experimental outputs. The simulation work was compared with experimental data, which shows the good agreement (<4%). Originality/value The experimental and simulation study performed in this research study constitutes an easy-to-use with different drag coefficient. The proposed MP-PIC model is more effective for large particles fluidized bed, which can be helpful for further research on industrial gas-particle fluidized bed reactors. This study is expected to give throughout the analysis of CFB hydrodynamics with further exploration of overall fluidization.

scholarly journals KINETIC MODELING AND EXPERIMENTAL VALIDATION OF A PHOTOCATALYTIC FLUIDIZED BED REACTOR FOR n-HEXANE DEGRADATION

2019 ◽  
Vol 36 (4) ◽  
pp. 1561-1570
Author(s):  
Danielle Matsumoto ◽  
Leonardo Almeida Diniz ◽  
Letícia Silva Castro ◽  
Antonio Carlos Silva Costa Teixeira ◽  
Roberto Guardani ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Kinetic Modeling ◽  
Experimental Validation ◽  
Fluidized Bed Reactor

Numerical simulation and experimental validation of gas–solid flow in the riser of a dense fluidized bed reactor

Particuology ◽  
2009 ◽  
Vol 7 (4) ◽  
pp. 278-282 ◽  
Author(s):  
Xueyao Wang ◽  
Fan Jiang ◽  
Xiang Xu ◽  
Shengdian Wang ◽  
Xuezhi Wu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Experimental Validation ◽  
Fluidized Bed Reactor ◽  
Solid Flow

scholarly journals Two-Section Two-Zone Fluidized Bed Reactor fluid dynamics: experimental study, hydrodynamic modelling and CFD simulations

1970 ◽  
Vol 1 ◽  
pp. 62-63
Author(s):  
Ignacio Julián ◽  
Javier Herguido ◽  
Miguel Menéndez
Keyword(s):  
Fluidized Bed ◽  
Fluid Dynamic ◽  
Dynamic Control ◽  
Fluidized Bed Reactor ◽  
Hydrodynamic Modelling ◽  
Sectional Area ◽  
Effective Solution ◽  
Cfd Simulations ◽  
Cross Sectional ◽  
Reactor Hydrodynamics

A Two Zone Fluidized Bed Reactor (TZFBR) represents an effective solution to integrate reaction and catalyst regeneration in a single fluidized bed reactor. Reactor hydrodynamics of an improved TZFBR configuration, that incorporates a different cross-sectional area between zones to allow a better fluid dynamic control on each zone separately, is here investigated.

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