Computational study of particle temperature in a bubbling spout fluidized bed with hot gas injection

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Abstract

CFD–DEM simulations of a hot gas jet issuing into a pseudo 2D gas–solid fluidized bed of glass particles are reported. A novel CFD–DEM model accounting for fluid–particle heat transfer has been developed and used for this particular research. In this work the background gas is maintained at minimum fluidization velocity and room temperature (300 K) while a hot gas jet (500 K) is injected from the center of a pseudo 2D bed. Three different particle sizes have been studied (1 mm, 2 mm and 3 mm). The hot gas jet causes continuous bubble formation and propagation in the bed thus creating a circulation pattern of particles. Using the detailed simulation data various kinds of analysis are presented on the particle temperature statistics like standard deviation and distribution profiles of time-averaged particle density, volume flux and temperature variation about the mean. Further, a tracer particle analysis is presented that shows the variation of particle temperatures about the mean for different particle sizes.
Original languageEnglish
Pages (from-to)475-485
Number of pages11
JournalPowder Technology
Volume284
DOIs
Publication statusPublished - 2015

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Fluidized beds
Gases
Particle size
Bubble formation
Temperature
Fluidization
Statistics
Fluxes
Heat transfer
Glass

Cite this

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title = "Computational study of particle temperature in a bubbling spout fluidized bed with hot gas injection",
abstract = "CFD–DEM simulations of a hot gas jet issuing into a pseudo 2D gas–solid fluidized bed of glass particles are reported. A novel CFD–DEM model accounting for fluid–particle heat transfer has been developed and used for this particular research. In this work the background gas is maintained at minimum fluidization velocity and room temperature (300 K) while a hot gas jet (500 K) is injected from the center of a pseudo 2D bed. Three different particle sizes have been studied (1 mm, 2 mm and 3 mm). The hot gas jet causes continuous bubble formation and propagation in the bed thus creating a circulation pattern of particles. Using the detailed simulation data various kinds of analysis are presented on the particle temperature statistics like standard deviation and distribution profiles of time-averaged particle density, volume flux and temperature variation about the mean. Further, a tracer particle analysis is presented that shows the variation of particle temperatures about the mean for different particle sizes.",
author = "A.V. Patil and E.A.J.F. Peters and J.A.M. Kuipers",
year = "2015",
doi = "10.1016/j.powtec.2015.07.014",
language = "English",
volume = "284",
pages = "475--485",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier",

}

Computational study of particle temperature in a bubbling spout fluidized bed with hot gas injection. / Patil, A.V.; Peters, E.A.J.F.; Kuipers, J.A.M.

In: Powder Technology, Vol. 284, 2015, p. 475-485.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Computational study of particle temperature in a bubbling spout fluidized bed with hot gas injection

AU - Patil, A.V.

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

AU - Kuipers, J.A.M.

PY - 2015

Y1 - 2015

N2 - CFD–DEM simulations of a hot gas jet issuing into a pseudo 2D gas–solid fluidized bed of glass particles are reported. A novel CFD–DEM model accounting for fluid–particle heat transfer has been developed and used for this particular research. In this work the background gas is maintained at minimum fluidization velocity and room temperature (300 K) while a hot gas jet (500 K) is injected from the center of a pseudo 2D bed. Three different particle sizes have been studied (1 mm, 2 mm and 3 mm). The hot gas jet causes continuous bubble formation and propagation in the bed thus creating a circulation pattern of particles. Using the detailed simulation data various kinds of analysis are presented on the particle temperature statistics like standard deviation and distribution profiles of time-averaged particle density, volume flux and temperature variation about the mean. Further, a tracer particle analysis is presented that shows the variation of particle temperatures about the mean for different particle sizes.

AB - CFD–DEM simulations of a hot gas jet issuing into a pseudo 2D gas–solid fluidized bed of glass particles are reported. A novel CFD–DEM model accounting for fluid–particle heat transfer has been developed and used for this particular research. In this work the background gas is maintained at minimum fluidization velocity and room temperature (300 K) while a hot gas jet (500 K) is injected from the center of a pseudo 2D bed. Three different particle sizes have been studied (1 mm, 2 mm and 3 mm). The hot gas jet causes continuous bubble formation and propagation in the bed thus creating a circulation pattern of particles. Using the detailed simulation data various kinds of analysis are presented on the particle temperature statistics like standard deviation and distribution profiles of time-averaged particle density, volume flux and temperature variation about the mean. Further, a tracer particle analysis is presented that shows the variation of particle temperatures about the mean for different particle sizes.

U2 - 10.1016/j.powtec.2015.07.014

DO - 10.1016/j.powtec.2015.07.014

M3 - Article

VL - 284

SP - 475

EP - 485

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

ER -