Article (Scientific journals)
Mathematical modeling of thermal behavior of single iron ore pellet during heat hardening oxidation
Amani, Hafez; Alamdari, E.K; Ale Ebrahim, H. et al.
2021In Journal of Thermal Analysis and Calorimetry
Peer reviewed
 

Files


Full Text
Amani2021_Article_MathematicalModelingOfThermalB.pdf
Publisher postprint (1.95 MB)
Request a copy

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
Non-catalytic; gas–solid reactions; Heat and mass transfer; Iron ore pellets; Modeling; Magnetite oxidation
Abstract :
[en] In this study, a one-dimensional generic model capable of being integrated with reactor scale models is proposed for a single pellet through solving the transient diferential conservation equations. Predicted results comparison with the experimental data showed close agreement. In addition, the model was used to investigate the relevance of physical characteristics of pellet, reacting gas composition, difusion factors, and prevailing regime. It was found that the pure magnetite pellet could achieve a temperature rise of about 245 K at oxygen concentration of 40 vol.%, whereas the maximum temperature diference inside the pellet was approximately 24 K. Moreover, increasing pellet size, the maximum attainable temperature reached a peak and then leveled out. Furthermore, by decreasing the pore diameter, the pellet size with peak temperature shifted to the smaller pellet sizes. Analyzing the numerical results also showed that for the small pellet sizes, shortening the difusion path leads to the spreading of the reaction interface. The modeling methodology herein can be applied to any particulate processes and is not limited to the aforementioned case.
Disciplines :
Materials science & engineering
Author, co-author :
Amani, Hafez
Alamdari, E.K
Ale Ebrahim, H.
Estupinan Donoso, Alvaro Antonio  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)
Peters, Bernhard ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
External co-authors :
yes
Language :
English
Title :
Mathematical modeling of thermal behavior of single iron ore pellet during heat hardening oxidation
Publication date :
08 February 2021
Journal title :
Journal of Thermal Analysis and Calorimetry
Publisher :
Springer
Peer reviewed :
Peer reviewed
Focus Area :
Physics and Materials Science
Additional URL :
Available on ORBilu :
since 14 January 2022

Statistics


Number of views
79 (9 by Unilu)
Number of downloads
4 (1 by Unilu)

Scopus citations®
 
2
Scopus citations®
without self-citations
1
OpenCitations
 
1
WoS citations
 
2

Bibliography


Similar publications



Contact ORBilu