Hydrodynamic and heat transfer study of a fluidized bed by discrete particle simulations

Lijing Mu; Kay A. Buist; J. A.M. Kuipers; Niels G. Deen

doi:10.3390/PR8040463

Hydrodynamic and heat transfer study of a fluidized bed by discrete particle simulations

Lijing Mu, Kay A. Buist, J. A.M. Kuipers, Niels G. Deen (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

13 Citaten (Scopus)

Samenvatting

A numerical simulation study was carried out to study the combined thermal behavior and hydrodynamics of a pseudo-2D fluidized bed using a computational fluid dynamics-discrete element method (CFD-DEM). To mimic the effect of heterogeneous exothermic reactions, a constant heat source was implemented in the particle energy equation. The effects of superficial gas velocity, bed height and heat source distribution were analyzed with the aid of averaged volume fraction and temperature distributions and velocity profiles. It was found that both the gas superficial velocity and the bed aspect ratio have a profound influence on fluidization behavior and temperature distributions.

Originele taal-2	Engels
Artikelnummer	463
Tijdschrift	Processes
Volume	8
Nummer van het tijdschrift	4
DOI's	https://doi.org/10.3390/PR8040463
Status	Gepubliceerd - 1 apr. 2020

Financiering

Funding: This research was funded by the Netherlands Center for Multiscale Catalytic Energy Conversion (MCEC), an NWO Gravitation program funded by the Ministry of Education, Culture and Science of the government of the Netherlands.

Financiers	Financiernummer
MCEC
Netherlands Center for Multiscale Catalytic Energy Conversion
Ministerie van OCW
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

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title = "Hydrodynamic and heat transfer study of a fluidized bed by discrete particle simulations",

abstract = "A numerical simulation study was carried out to study the combined thermal behavior and hydrodynamics of a pseudo-2D fluidized bed using a computational fluid dynamics-discrete element method (CFD-DEM). To mimic the effect of heterogeneous exothermic reactions, a constant heat source was implemented in the particle energy equation. The effects of superficial gas velocity, bed height and heat source distribution were analyzed with the aid of averaged volume fraction and temperature distributions and velocity profiles. It was found that both the gas superficial velocity and the bed aspect ratio have a profound influence on fluidization behavior and temperature distributions.",

keywords = "Bed aspect ratio, CFD-DEM, Gas superficial velocity, Gas-Particle fluidized bed",

author = "Lijing Mu and Buist, {Kay A.} and Kuipers, {J. A.M.} and Deen, {Niels G.}",

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AU - Mu, Lijing

AU - Buist, Kay A.

AU - Kuipers, J. A.M.

AU - Deen, Niels G.

PY - 2020/4/1

Y1 - 2020/4/1

N2 - A numerical simulation study was carried out to study the combined thermal behavior and hydrodynamics of a pseudo-2D fluidized bed using a computational fluid dynamics-discrete element method (CFD-DEM). To mimic the effect of heterogeneous exothermic reactions, a constant heat source was implemented in the particle energy equation. The effects of superficial gas velocity, bed height and heat source distribution were analyzed with the aid of averaged volume fraction and temperature distributions and velocity profiles. It was found that both the gas superficial velocity and the bed aspect ratio have a profound influence on fluidization behavior and temperature distributions.

AB - A numerical simulation study was carried out to study the combined thermal behavior and hydrodynamics of a pseudo-2D fluidized bed using a computational fluid dynamics-discrete element method (CFD-DEM). To mimic the effect of heterogeneous exothermic reactions, a constant heat source was implemented in the particle energy equation. The effects of superficial gas velocity, bed height and heat source distribution were analyzed with the aid of averaged volume fraction and temperature distributions and velocity profiles. It was found that both the gas superficial velocity and the bed aspect ratio have a profound influence on fluidization behavior and temperature distributions.

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KW - CFD-DEM

KW - Gas superficial velocity

KW - Gas-Particle fluidized bed

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Hydrodynamic and heat transfer study of a fluidized bed by discrete particle simulations

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