Reference : Three-dimensional CFD-DEM simulation of raceway transport phenomena in a blast furnace
Scientific journals : Article
Engineering, computing & technology : Chemical engineering
Computational Sciences
http://hdl.handle.net/10993/53900
Three-dimensional CFD-DEM simulation of raceway transport phenomena in a blast furnace
English
Aminnia, Navid mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Adhav, Prasad mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Darlik, Fateme mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Mashhood, Muhammad mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Hassanzadeh Saraei, Sina mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Besseron, Xavier mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Peters, Bernhard mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
15-Feb-2023
Fuel
Elsevier
334
2
Yes
International
0016-2361
Netherlands
[en] Coupled CFD-DEM ; Blast furnace ; Raceway
[en] Improving energy efficiency in a blast furnace (BF) has a significant effect on energy consumption and pollutant emission in a steel plant. In the BF, the blast injection creates a cavity, the so-called raceway, near the inlet. On the periphery of the raceway, a ring-type zone is formed which is associated with the highest coke combustion rate and temperatures in the raceway. Therefore, predicting the raceway size or in other words, the periphery of the ring-type zone with accuracy is important for estimating the BF’s energy and coke consumption. In the present study, Computational Fluid Dynamics (CFD) is coupled to Discrete Element Method (DEM) to develop a three-dimensional (3D) model featuring a gas–solid reacting flow, to study the transport phenomena inside the raceway. The model is compared to a previously developed two-dimensional (2D) model and it is shown that the assumptions associated with a 2D model, result in an overestimation of the size of the raceway. The 3D model is then used to investigate the coke particles’ combustion and heat generation and distribution in the raceway. It is shown that a higher blast flow rate is associated with a higher reaction rate and a larger raceway. A 10% increase in the inlet velocity (from 200 m/s to 220 m/s) caused the raceway volume to grow by almost 40%. The DEM model considers a radial discretization over the particle, therefore the heat and mass distributions over the particle are analyzed as well.
University of Luxembourg: Luxembourg XDEM Research Centre - LuXDEM
Fonds National de la Recherche - FnR
Raceway of Blast Furnace
Researchers ; Professionals ; Students
http://hdl.handle.net/10993/53900
10.1016/j.fuel.2022.126574
https://www.sciencedirect.com/science/article/pii/S0016236122033981?dgcid=author
FnR ; FNR13558062 > Navid Aminnia > AdMuF (Advanced Multiphase Flows) > Investigation Into The Evolution Of Grain Structure For Metal Additive Manufacturing > 01/04/2019 > 31/03/2023 > 2019

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