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Title: Extension of a coarse grained particle method to simulate heat transfer in fluidized beds

Abstract

The heat transfer in a gas-solids fluidized bed is simulated with computational fluid dynamic-discrete element method (CFD-DEM) and coarse grained particle method (CGPM). In CGPM fewer numerical particles and their collisions are tracked by lumping several real particles into a computational parcel. Here, the assumption is that the real particles inside a coarse grained particle (CGP) are made from same species and share identical physical properties including density, diameter and temperature. The parcel-fluid convection term in CGPM is calculated using the same method as in DEM. For all other heat transfer mechanisms, we derive in this study mathematical expressions that relate the new heat transfer terms for CGPM to those traditionally derived in DEM. This newly derived CGPM model is verified and validated by comparing the results with CFD-DEM simulation results and experiment data. The numerical results compare well with experimental data for both hydrodynamics and temperature profiles. Finally, the proposed CGPM model can be used for fast and accurate simulations of heat transfer in large scale gas-solids fluidized beds.

Authors:
 [1];  [1];  [2];  [1]
  1. National Energy Technology Lab. (NETL), Morgantown, WV (United States)
  2. National Energy Technology Lab. (NETL), Morgantown, WV (United States); AECOM, Morgantown, WV (United States)
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States). In-house Research
Sponsoring Org.:
USDOE
OSTI Identifier:
1402455
Alternate Identifier(s):
OSTI ID: 1397099
Report Number(s):
NETL-PUB-20845
Journal ID: ISSN 0017-9310; PII: S0017931016333129
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Heat and Mass Transfer
Additional Journal Information:
Journal Volume: 111; Journal Issue: C; Journal ID: ISSN 0017-9310
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; 01 COAL, LIGNITE, AND PEAT; Computational fluid dynamics; discrete element method; coarse grained particle method; CFD-DEM; heat transfer

Citation Formats

Lu, Liqiang, Morris, Aaron, Li, Tingwen, and Benyahia, Sofiane. Extension of a coarse grained particle method to simulate heat transfer in fluidized beds. United States: N. p., 2017. Web. doi:10.1016/j.ijheatmasstransfer.2017.04.040.
Lu, Liqiang, Morris, Aaron, Li, Tingwen, & Benyahia, Sofiane. Extension of a coarse grained particle method to simulate heat transfer in fluidized beds. United States. https://doi.org/10.1016/j.ijheatmasstransfer.2017.04.040
Lu, Liqiang, Morris, Aaron, Li, Tingwen, and Benyahia, Sofiane. Tue . "Extension of a coarse grained particle method to simulate heat transfer in fluidized beds". United States. https://doi.org/10.1016/j.ijheatmasstransfer.2017.04.040. https://www.osti.gov/servlets/purl/1402455.
@article{osti_1402455,
title = {Extension of a coarse grained particle method to simulate heat transfer in fluidized beds},
author = {Lu, Liqiang and Morris, Aaron and Li, Tingwen and Benyahia, Sofiane},
abstractNote = {The heat transfer in a gas-solids fluidized bed is simulated with computational fluid dynamic-discrete element method (CFD-DEM) and coarse grained particle method (CGPM). In CGPM fewer numerical particles and their collisions are tracked by lumping several real particles into a computational parcel. Here, the assumption is that the real particles inside a coarse grained particle (CGP) are made from same species and share identical physical properties including density, diameter and temperature. The parcel-fluid convection term in CGPM is calculated using the same method as in DEM. For all other heat transfer mechanisms, we derive in this study mathematical expressions that relate the new heat transfer terms for CGPM to those traditionally derived in DEM. This newly derived CGPM model is verified and validated by comparing the results with CFD-DEM simulation results and experiment data. The numerical results compare well with experimental data for both hydrodynamics and temperature profiles. Finally, the proposed CGPM model can be used for fast and accurate simulations of heat transfer in large scale gas-solids fluidized beds.},
doi = {10.1016/j.ijheatmasstransfer.2017.04.040},
journal = {International Journal of Heat and Mass Transfer},
number = C,
volume = 111,
place = {United States},
year = {Tue Apr 18 00:00:00 EDT 2017},
month = {Tue Apr 18 00:00:00 EDT 2017}
}

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Cited by: 72 works
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Works referencing / citing this record:

Method to estimate uncertainty associated with parcel size in coarse discrete particle simulation
journal, February 2018

  • Lu, Liqiang; Benyahia, Sofiane
  • AIChE Journal, Vol. 64, Issue 7
  • DOI: 10.1002/aic.16100

Coarse grained computational fluid dynamic simulation of sands and biomass fluidization with a hybrid drag
journal, November 2019

  • Lu, Liqiang; Gao, Xi; Shahnam, Mehrdad
  • AIChE Journal, Vol. 66, Issue 4
  • DOI: 10.1002/aic.16867