CFD model for the simulation of chemical looping combustion

Parker, James M.

doi:10.1016/j.powtec.2014.01.027

Cited by 96 publications

(41 citation statements)

References 9 publications

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“…Based on the description of the fluid dynamics of the reactor, two categories of models can be identified [8]: macroscopic fluid dynamics models (MFD) [9][10][11][12][13] and computational fluid dynamics models (CFD). Based on the description to the particle phase dynamics, the CFD models can also be divided into three categories: the two-fluid model, the CFD-DEM (discrete element method) model [14,15], and the CPFD (computational particle fluid dynamics) model [16,17]. In CFD simulation based on the Navier-Stokes equation for describing the fluid flow, less artificial factors existed.…”

Section: Introductionmentioning

confidence: 99%

Computational fluid dynamics simulation for chemical looping combustion of coal in a dual circulation fluidized bed

Zhao

2015

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

Computational fluid dynamics simulation for chemical looping combustion of coal in a dual circulation fluidized bed

Zhao

2015

Energy Conversion and Management

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“…Some efforts have been carried out on the CFD simulation of chemical looping combustion processes [10,[16][17][18][19][20][21][22][23][24][25][26][27][28][29]. However, only a few investigations have been focused on the full loop simulation of the interconnected fluidized bed, due to the complexities in geometry and flow physics, which requires large computational resources [1,28].…”

Section: Fig 1 Schematic Of Chemical Looping Combustion Processmentioning

confidence: 99%

“…For 3-D full loop simulation of the chemical looping combustion process, Parker et al [26] predicted the gas-solids hydrodynamics, thermal characteristics and reaction efficiency by the computational particle fluid dynamics (CPFD) method. Very recently, a 3-D full loop simulation was conducted to investigate the solids circulation in a dual circulating fluidized bed composed of a riser and a turbulent bed [29].…”

Section: Fig 1 Schematic Of Chemical Looping Combustion Processmentioning

confidence: 99%

Three-dimensional full loop simulation of solids circulation in an interconnected fluidized bed

et al. 2016

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ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. Abstract 3-D full loop CFD simulation of solids circulation rate is conducted in a complicated circulating-fluidized bed, which consists of a riser, a bubbling bed, a cyclone and a loop-seal. The effects of operating gas velocity, particle diameter and total solids inventory on the solids circulation rate are investigated based on the system pressure balance of an interconnected fluidized bed. CFD results indicate that the gas velocity in the riser plays a dominant role in controlling the solids circulation rate, whilst the gas velocity in the pot-seal influences in a narrow operating range. The solids circulation rate is strongly influenced by particle diameter and total solids inventory, but becomes insensitive to the operating conditions in the bubbling bed as the gas velocity is higher than the minimum fluidization velocity.

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“…used power laws and the Arrhenius expression to develop these models . These developed models are not in a form that can be input into Barracuda‐VR, but the models can be modified to a usable form …”

Section: Introductionmentioning

confidence: 99%

“…[20][21][22][23] TheM P-PIC method is the basis for the Barracuda-VR code.P revious simulations of CLC systems have included the use of Barracuda-VRt om odel at hree-dimensional CLC system utilizing ilmenite as an oxygenc arrier and gasification of the coal. [24] While CLOU kinetics,u tilizing copper oxide,h ave been applied in ao nedimensional simulation, [25] There has not been athree-dimensional reactingf low CFD model with gas-particlei nteraction for adual-bed CLOU system. CLOU kinetics using copper oxide oxygenc arriers have been studied in manym odels of varying details.…”

Section: Introductionmentioning

confidence: 99%

Incorporating Oxygen Uncoupling Kinetics into Computational Fluid Dynamic Simulations of a Chemical Looping System

2016

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Chemical looping with oxygen uncoupling (CLOU) is a carbon‐capture technology that utilizes a metal oxide as an oxygen carrier to separate oxygen from air and releases gaseous O2 into a reactor where fuel is fed. Earlier experimental and simulated work has been performed on systems less than 1 MW. Previous work has been limited to one‐dimensional kinetic simulations. Literature kinetics were modified to work in a Barracuda‐VR simulation package. A simplified spreadsheet model was used to verify the Barracuda‐VR simulation adaption of the kinetics to previously published results. The simulated kinetics, literature models, and raw data matched well. The adapted kinetics were then incorporated into a 10 kW dual bubbling bed CLOU system three‐dimensional simulation. The simulations predicted carbon capture efficiency similar to that reported previously for similar systems. The solid circulation rate, temperature profile, and gas concentration profiles followed the expected trends. The overall three‐dimensional simulation of kinetics showed reasonable results for what has been previously reported.

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CFD model for the simulation of chemical looping combustion

Cited by 96 publications

References 9 publications

Computational fluid dynamics simulation for chemical looping combustion of coal in a dual circulation fluidized bed

Computational fluid dynamics simulation for chemical looping combustion of coal in a dual circulation fluidized bed

Three-dimensional full loop simulation of solids circulation in an interconnected fluidized bed

Incorporating Oxygen Uncoupling Kinetics into Computational Fluid Dynamic Simulations of a Chemical Looping System

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