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Title: Numerical simulation of a full-loop circulating fluidized bed under different operating conditions

Abstract

Both experimental and computational studies of the fluidization of high-density polyethylene (HDPE) particles in a small-scale full-loop circulating fluidized bed are conducted. Experimental measurements of pressure drop are taken at different locations along the bed. The solids circulation rate is measured with an advanced Particle Image Velocimetry (PIV) technique. The bed height of the quasi-static region in the standpipe is also measured. Comparative numerical simulations are performed with a Computational Fluid Dynamics solver utilizing a Discrete Element Method (CFD-DEM). This paper reports a detailed and direct comparison between CFD-DEM results and experimental data for realistic gas-solid fluidization in a full-loop circulating fluidized bed system. The comparison reveals good agreement with respect to system component pressure drop and inventory height in the standpipe. In addition, the effect of different drag laws applied within the CFD simulation is examined and compared with experimental results.

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), Morgantown, WV (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1415784
Report Number(s):
NETL-PUB-21290
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; Multiphase Flow; Circulating Fluidized Beds, Computational Fluid Dynamics

Citation Formats

Xu, Yupeng, Musser, Jordan M., Li, Tingwen, and Rogers, William A. Numerical simulation of a full-loop circulating fluidized bed under different operating conditions. United States: N. p., 2017. Web. doi:10.2172/1415784.
Xu, Yupeng, Musser, Jordan M., Li, Tingwen, & Rogers, William A. Numerical simulation of a full-loop circulating fluidized bed under different operating conditions. United States. doi:10.2172/1415784.
Xu, Yupeng, Musser, Jordan M., Li, Tingwen, and Rogers, William A. Tue . "Numerical simulation of a full-loop circulating fluidized bed under different operating conditions". United States. doi:10.2172/1415784. https://www.osti.gov/servlets/purl/1415784.
@article{osti_1415784,
title = {Numerical simulation of a full-loop circulating fluidized bed under different operating conditions},
author = {Xu, Yupeng and Musser, Jordan M. and Li, Tingwen and Rogers, William A.},
abstractNote = {Both experimental and computational studies of the fluidization of high-density polyethylene (HDPE) particles in a small-scale full-loop circulating fluidized bed are conducted. Experimental measurements of pressure drop are taken at different locations along the bed. The solids circulation rate is measured with an advanced Particle Image Velocimetry (PIV) technique. The bed height of the quasi-static region in the standpipe is also measured. Comparative numerical simulations are performed with a Computational Fluid Dynamics solver utilizing a Discrete Element Method (CFD-DEM). This paper reports a detailed and direct comparison between CFD-DEM results and experimental data for realistic gas-solid fluidization in a full-loop circulating fluidized bed system. The comparison reveals good agreement with respect to system component pressure drop and inventory height in the standpipe. In addition, the effect of different drag laws applied within the CFD simulation is examined and compared with experimental results.},
doi = {10.2172/1415784},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {10}
}