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Metals 2017, 7(5), 154; doi:10.3390/met7050154

Discrete Element Method Investigation of Bulk Density and Electrical Resistivity of Calcined Coke Mixes

1
Department of Mining, Metallurgical and Materials Engineering, Laval University, Quebec, QC G1V 0A6, Canada
2
NSERC/Alcoa Industrial Research Chair MACE and Aluminum Research Center, Laval University, Quebec, QC G1V 0A6, Canada
3
Alcoa Primary Metals, Alcoa Technical Center, 859 White Cloud Road, New Kensington, PA 15068, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Filippo Berto
Received: 17 January 2017 / Revised: 21 April 2017 / Accepted: 24 April 2017 / Published: 26 April 2017
View Full-Text   |   Download PDF [3040 KB, uploaded 26 April 2017]   |  

Abstract

Packing density and electrical resistivity of particles assemblies are important factors for a variety of applications of granular materials. In the present work, a three-dimensional imaging technique is coupled with the discrete element method (DEM) to model anode grade calcined coke particles. Three-dimensional DEM models of samples with different size distribution of particles were studied to obtain the inter-particle contact information. As the content of fine particles increased, a higher inter-particle contact density and smaller average contact radius was observed in the samples. Confronting the DEM data and experimental measurements of electrical resistivity showed the simultaneous effects of packing density and contact density. Samples with higher contact density and smaller contact radius in general held high electrical resistivities. However, if increasing the contact density does not modify contacts between large particles, this will have a positive effect on packing density, so a lower electrical resistivity was obtained. View Full-Text
Keywords: calcined coke; discrete element method; packing density; electrical resistivity calcined coke; discrete element method; packing density; electrical resistivity
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Majidi, B.; Rouget, G.; Fafard, M.; Ziegler, D.; Alamdari, H. Discrete Element Method Investigation of Bulk Density and Electrical Resistivity of Calcined Coke Mixes. Metals 2017, 7, 154.

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