Unpublished conference/Abstract (Scientific congresses, symposiums and conference proceedings)
SOFTENING AND MELTING MODELING OF IRON ORE PARTICLES USING A CFD-DEM COUPLING METHOD
Baniasadi, Mehdi; Peters, Bernhard
20188th International Congress on Science and technology of ironmaking - ICSTI 2018
 

Files


Full Text
294.pdf
Publisher postprint (785.2 kB)
Request a copy

All documents in ORBilu are protected by a user license.

Send to



Details



Abstract :
[en] The iron-bearing particles start softening and melting because of the weight of burden above and the high temperature in the middle of the blast furnace so-called cohesive zone. In this region, as particles are softened, the void space between particles decreases. As the temperature increases further, the softened particles start melting and generate two different liquids: molten iron and slag. Then the generated liquids trickle down to the lower part of the blast furnace. The softening and melting process forms the impermeable ferrous layers forcing gas to flow horizontally through the permeable coke windows. These phenomena have a big effect on the operation of the blast furnace, and since it is not possible to interrupt the blast furnace to investigate details of the phenomena occurring inside, the numerical simulation becomes more practical. In this contribution, the eXtended Discrete Element Method (XDEM) as an advanced numerical tool based on the discrete-continuous framework, is used. Within this model, the gas and liquid phases are described by computational fluid dynamics (CFD) and the soft-sphere discrete element approach (DEM) is used for the coke and iron ore particles. Continuous phases are coupled to the discrete entities through mass, momentum, and energy exchange. Moreover, the internal temperature distribution of the particles is described. The particle’s deformation, temperature, melting, and shrinking along with the saturation of molten iron and slag are examined using the XDEM method.
Disciplines :
Materials science & engineering
Author, co-author :
Baniasadi, Mehdi ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Peters, Bernhard ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
External co-authors :
no
Language :
English
Title :
SOFTENING AND MELTING MODELING OF IRON ORE PARTICLES USING A CFD-DEM COUPLING METHOD
Publication date :
25 September 2018
Event name :
8th International Congress on Science and technology of ironmaking - ICSTI 2018
Event date :
24-09-2018 to 28-09-2018
Audience :
International
Focus Area :
Computational Sciences
FnR Project :
FNR8939527 - Analysis Of Cohesive Zone Behaviour Through Advanced Multi-physics Simulation Technology, 2014 (01/02/2015-31/01/2019) - Mehdi Baniasadi
Name of the research project :
Digital Twin of a Blast Furnace
Available on ORBilu :
since 01 October 2018

Statistics


Number of views
250 (7 by Unilu)
Number of downloads
2 (2 by Unilu)

Bibliography


Similar publications



Contact ORBilu