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I n t e r n a t i o n a l C o n f e r e n c e o n
Metal, Mining and
Magnetic Materials
Journal of Material Sciences
ISSN: 2321-6212
N o v e m b e r 0 1 - 0 2 , 2 0 1 8
P a r i s , F r a n c e
Metal and Magnetism 2018
Page 18
T
hermal processing remains the most important method to process materials
of any kind in particular raw materials such as iron ore or hard metal powders
and the scale of the industry is enormous. Owing to the large scale, manufacturing
industries are obliged to design and perform their production both perfectly
and optimized under sustainable constraints. In general, processes for thermal
treatment are complex andmost likely involve various aspects of thermodynamics,
fluid dynamics, chemistry and physics that are tightly coupled in space and time.
In order to unveil the underlying physics, the innovative approach extended
discrete element method (XDEM) was developed and is applied to the iron making
in a blast furnace as shown in fig 1 and the reduction of tungsten oxide. The solid
phase consisting of particles is treated in a Lagrangian framework so that the
thermodynamic state of each individual particle is determined. The flow within
the void space between the particles is described by advanced computational
fluid dynamics (CFD) that estimates temperature, velocity and composition of the
gas phase. Both, gas and solid phase are coupled through an intensive exchange
of mass and heat. Both applications, reduction of iron ore and tungsten oxide
revealed a very good agreement between experimental data and predictions. Non-
uniformflowdistributions led to reduced reduction performance due to insufficient
amounts of the reducing agent. Hence, the presented numerical XDEM platform
serves as an excellent tool to identify deficiencies for design and operation
Biography
Bernhard Peters has completed his Graduation in Mechanical
Engineering (Diplom-Ingenieur) and PhD in Behavior of a 3-way
catalyst during transient engine operation. From Technical
University of Aachen. He is currently the Head of the Thermo-/
Fluid dynamics section at the University of Luxembourg and an
Academic Visitor of the Lithuanian Energy Institute (LEI). After
completing his Post-doctoral Research at Imperial College of
Science, Technology and Medicine, University of London, UK,
he established a research team dedicated to thermal conver-
sion of solid fuels at the Karlsruhe Institute of Technology (KIT)
and worked hereafter in industry at AVL List GmbH, Austria.
His research activities at the University of Luxembourg include
thermo/fluid dynamics in particular multiphase flow, reaction
engineering, numerical modeling, High performance computing
(HPC) and all aspects of particulate materials such as motion
and conversion for which he developed the extended discrete
element method (XDEM).
bernhard.peters@uni.luThermal processing of raw materials by the
extended discrete element method (XDEM)
Bernhard Peters
1
, Maryam Baniasadi
2
and
Alvaro Estupinan Donoso
3
1
University of Luxembourg, Luxembourg
2
Paul Wurth S A, Luxembourg
3
Ceratizit Luxembourg sàrl, Luxembourg
Bernhard Peters et al., J Mat. Sci. 2018, Volume:6
DOI: 10.4172/2321-6212-C7-031