Coupled CFD-DEM; heat and mass transfer; burden distribution; coke breeze; iron ore pellets
Résumé :
[en] In the current study, a pseudo-2D XDEM packed bed reactor model is used to assess burden distribution effects in the firing of magnetite iron ore pellets. The model couples heat, mass, and momentum balances of the gas phase in each CFD cell to the relevant transport phenomena of each pellet. It was found that the model predictions in terms of temperature and final composition conform well with experimental measurements. Moreover, numerical results show that both of the tested methods, namely, physical (size-separated charge) and chemical (local addition of carbon) burden distributions can improve the thermal state of the firing bed. Furthermore, the results highlight that using size separated feed leads to homogeneity enhancement in final product quality; however, the local addition of carbon can severely deteriorate the quality.
Disciplines :
Science des matériaux & ingénierie
Auteur, co-auteur :
Amani, H
Alamdari, E. K
PETERS, Bernhard ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
ESTUPINAN DONOSO, Alvaro Antonio ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
XDEM study of burden distribution in iron ore pellet firing
Date de publication/diffusion :
12 mars 2022
Titre du périodique :
Ironmaking and Steelmaking
Maison d'édition :
Taylor & Francis
Volume/Tome :
49
Fascicule/Saison :
6
Pagination :
615-625
Peer reviewed :
Peer reviewed
Focus Area :
Computational Sciences Physics and Materials Science
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