Fluidized bed gas-solid heat transfer using a CFD-DEM coarse-graining technique

M.J.A. de Munck; E.A.J.F. Peters; J.A.M. Kuipers

doi:10.1016/j.ces.2023.119048

Fluidized bed gas-solid heat transfer using a CFD-DEM coarse-graining technique

M.J.A. de Munck
, E.A.J.F. Peters (Corresponding author)
, J.A.M. Kuipers

EAISI High Tech Systems

Research output: Contribution to journal › Article › Academic › peer-review

35 Citations (Scopus)

450 Downloads (Pure)

Abstract

Computational Fluid Dynamics - Discrete Element Method (CFD-DEM) is extensively used for modeling heat transfer in gas-solid fluidized beds. However, CFD-DEM is computationally expensive, leading to a restriction regarding the number of simulated particles. Coarse-grained CFD-DEM is a technique to circumvent this constraint, allowing one to simulate larger fluidized beds. In this work, a scaling law used for coarse-graining hydrodynamics is generalized to gas-solid heat-transfer. This approach for coarse-graining heat transfer is tested using three different superficial gas velocities where the coarse-grained particle temperatures and Nusselt numbers are obtained. The particle temperature shows good correspondence with the original system for all cases and the Nusselt number is accurately predicted by the coarse-graining scaling law.

Original language	English
Article number	119048
Number of pages	11
Journal	Chemical Engineering Science
Volume	280
DOIs	https://doi.org/10.1016/j.ces.2023.119048
Publication status	Published - 5 Oct 2023

Funding

This research received funding from the Dutch Research Council (NWO, grant number 741.019.202) in the framework of the ENW PPP Fund for the top sectors and from the Ministry of Economic Affairs in the framework of the “PPS-toeslagregeling”. Moreover, the authors would like to thank SURFsara and NWO domain Science for the use of the Snellius supercomputer facilities. This research received funding from the Dutch Research Council (NWO, grant number 741.019.202 ) in the framework of the ENW PPP Fund for the top sectors and from the Ministry of Economic Affairs in the framework of the “PPS-toeslagregeling”.

Funders	Funder number
Ministerie van Economische Zaken en Klimaat
Nederlandse Organisatie voor Wetenschappelijk Onderzoek	741.019.202
Ministerie van Economische Zaken en Klimaat

Keywords

CFD-DEM
Coarse-graining
Fluidized bed
Gas-solid heat transfer
Scaling law

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10.1016/j.ces.2023.119048

pdfFinal published version, 7.26 MBLicence: CC BY

Cite this

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title = "Fluidized bed gas-solid heat transfer using a CFD-DEM coarse-graining technique",

abstract = "Computational Fluid Dynamics - Discrete Element Method (CFD-DEM) is extensively used for modeling heat transfer in gas-solid fluidized beds. However, CFD-DEM is computationally expensive, leading to a restriction regarding the number of simulated particles. Coarse-grained CFD-DEM is a technique to circumvent this constraint, allowing one to simulate larger fluidized beds. In this work, a scaling law used for coarse-graining hydrodynamics is generalized to gas-solid heat-transfer. This approach for coarse-graining heat transfer is tested using three different superficial gas velocities where the coarse-grained particle temperatures and Nusselt numbers are obtained. The particle temperature shows good correspondence with the original system for all cases and the Nusselt number is accurately predicted by the coarse-graining scaling law.",

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AU - Peters, E.A.J.F.

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PY - 2023/10/5

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N2 - Computational Fluid Dynamics - Discrete Element Method (CFD-DEM) is extensively used for modeling heat transfer in gas-solid fluidized beds. However, CFD-DEM is computationally expensive, leading to a restriction regarding the number of simulated particles. Coarse-grained CFD-DEM is a technique to circumvent this constraint, allowing one to simulate larger fluidized beds. In this work, a scaling law used for coarse-graining hydrodynamics is generalized to gas-solid heat-transfer. This approach for coarse-graining heat transfer is tested using three different superficial gas velocities where the coarse-grained particle temperatures and Nusselt numbers are obtained. The particle temperature shows good correspondence with the original system for all cases and the Nusselt number is accurately predicted by the coarse-graining scaling law.

AB - Computational Fluid Dynamics - Discrete Element Method (CFD-DEM) is extensively used for modeling heat transfer in gas-solid fluidized beds. However, CFD-DEM is computationally expensive, leading to a restriction regarding the number of simulated particles. Coarse-grained CFD-DEM is a technique to circumvent this constraint, allowing one to simulate larger fluidized beds. In this work, a scaling law used for coarse-graining hydrodynamics is generalized to gas-solid heat-transfer. This approach for coarse-graining heat transfer is tested using three different superficial gas velocities where the coarse-grained particle temperatures and Nusselt numbers are obtained. The particle temperature shows good correspondence with the original system for all cases and the Nusselt number is accurately predicted by the coarse-graining scaling law.

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KW - Coarse-graining

KW - Scaling law

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KW - CFD-DEM

KW - Coarse-graining

KW - Fluidized bed

KW - Gas-solid heat transfer

KW - Scaling law

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Fluidized bed gas-solid heat transfer using a CFD-DEM coarse-graining technique

Abstract

Funding

Keywords

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Studies Conducted at Eindhoven University of Technology on Computational Fluid Dynamics Recently Reported (Fluidized Bed Gas-solid Heat Transfer Using a Cfd-dem Coarse-graining Technique)

Matlab fig files for the paper 'Fluidized bed gas-solid heat transfer using a CFD-DEM coarse-graining technique'

Cite this

Fluidized bed gas-solid heat transfer using a CFD-DEM coarse-graining technique

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Press/Media

Studies Conducted at Eindhoven University of Technology on Computational Fluid Dynamics Recently Reported (Fluidized Bed Gas-solid Heat Transfer Using a Cfd-dem Coarse-graining Technique)

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Matlab fig files for the paper 'Fluidized bed gas-solid heat transfer using a CFD-DEM coarse-graining technique'

Cite this