The binary fluidization of Geldart D type nonspherical wood particles and spherical low density polyethylene (LDPE) particles was investigated in a laboratory‐scale bed. The experiment was performed for varying static bed height, wood particles count, as well as superficial gas velocity. The LDPE velocity field were quantified using particle image velocimetry (PIV). The wood particles orientation and velocity are measured using particle tracking velocimetry (PTV). A machine learning pixel‐wise classification model was trained and applied to acquire wood and LDPE particle masks for PIV and PTV processing, respectively. The results show significant differences in the fluidization behavior between LDPE only case and binary fluidization case. The effects of wood particles on the slugging frequency, mean, and variation of bed height, and characteristics of the particle velocities/orientations were quantified and compared. This comprehensive experimental dataset serves as a benchmark for validating numerical models.
@article{osti_1855869,
author = {Li, Cheng and Gao, Xi and Rowan, Steven L. and Hughes, Bryan and Rogers, William A.},
title = {Measuring binary fluidization of nonspherical and spherical particles using machine learning aided image processing},
annote = {Abstract The binary fluidization of Geldart D type nonspherical wood particles and spherical low density polyethylene (LDPE) particles was investigated in a laboratory‐scale bed. The experiment was performed for varying static bed height, wood particles count, as well as superficial gas velocity. The LDPE velocity field were quantified using particle image velocimetry (PIV). The wood particles orientation and velocity are measured using particle tracking velocimetry (PTV). A machine learning pixel‐wise classification model was trained and applied to acquire wood and LDPE particle masks for PIV and PTV processing, respectively. The results show significant differences in the fluidization behavior between LDPE only case and binary fluidization case. The effects of wood particles on the slugging frequency, mean, and variation of bed height, and characteristics of the particle velocities/orientations were quantified and compared. This comprehensive experimental dataset serves as a benchmark for validating numerical models.},
doi = {10.1002/aic.17693},
url = {https://www.osti.gov/biblio/1855869},
journal = {AIChE Journal},
issn = {ISSN 0001-1541},
number = {7},
volume = {68},
place = {United States},
publisher = {Wiley Blackwell (John Wiley & Sons)},
year = {2022},
month = {03}}
ASME 2013 International Mechanical Engineering Congress and Exposition, Volume 7A: Fluids Engineering Systems and Technologieshttps://doi.org/10.1115/IMECE2013-65027