Journal ArticleDOI
Computational Fluid Dynamics Modeling of Supersonic Coherent Jets for Electric Arc Furnace Steelmaking Process
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In this paper, a computational fluid dynamics (CFD) simulation of the supersonic jet with and without a shrouding flame at room ambient temperature was carried out and validated against experimental data.Abstract:
Supersonic coherent gas jets are now used widely in electric arc furnace steelmaking and many other industrial applications to increase the gas–liquid mixing, reaction rates, and energy efficiency of the process. However, there has been limited research on the basic physics of supersonic coherent jets. In the present study, computational fluid dynamics (CFD) simulation of the supersonic jet with and without a shrouding flame at room ambient temperature was carried out and validated against experimental data. The numerical results show that the potential core length of the supersonic oxygen and nitrogen jet with shrouding flame is more than four times and three times longer, respectively, than that without flame shrouding, which is in good agreement with the experimental data. The spreading rate of the supersonic jet decreased dramatically with the use of the shrouding flame compared with a conventional supersonic jet. The present CFD model was used to investigate the characteristics of the supersonic coherent oxygen jet at steelmaking conditions of around 1700 K (1427 °C). The potential core length of the supersonic coherent oxygen jet at steelmaking conditions was 1.4 times longer than that at room ambient temperature.read more
Citations
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Journal ArticleDOI
Experimental and numerical investigations on heat transfer of a water-cooled lance for blowing oxidizing gas in an electrical arc furnace
Erfan Khodabandeh,Alireza Rahbari,Alireza Rahbari,Marc A. Rosen,Zabihollah Najafian Ashrafi,Omid Ali Akbari,Amir Masoud Anvari +6 more
TL;DR: In this article, a 3D model of an electric arc furnace with a nominal power of 105 MW and a nominal capacity of 120 T equipped with a cooling box system is simulated using CFD software.
Journal ArticleDOI
Review on Modeling and Simulation of the Electric Arc Furnace (EAF)
Hans-Jürgen Odenthal,Andreas Kemminger,Fabian Krause,Lukas Sankowski,Norbert Uebber,Norbert Vogl +5 more
Journal ArticleDOI
Numerical simulation of two-phase flow with bubble break-up and coalescence coupled with population balance modeling
TL;DR: In this article, a computational fluid dynamic (CFD) model was developed with an improved source term based on previous work by Hagesaether et al. for bubble break up and bubble coalescence to carry out numerical prediction of number density of different bubble classes in turbulent dispersed flow.
Journal ArticleDOI
Study on the Fluid Flow Characteristics of Coherent Jets with CO 2 and O 2 Mixed Injection in Electric Arc Furnace Steelmaking Processes
TL;DR: In this article, a computational fluid dynamics model of coherent jets with COMI was built with the overall and detailed chemical kinetic mechanisms (GRI-Mech 3.0), which consists of 325 elementary reactions with 53 components and can predict more accurate results.
Journal ArticleDOI
Coalescence Characteristics of Supersonic Jets From Multi‐Nozzle Oxygen Lance in Steelmaking BOF
TL;DR: In this article, the authors presented a numerical study on the coalescence of supersonic jets from the multi-nozzle oxygen lance at a practical Mach number by a compressible and non-isothermal computational fluid dynamics model.
References
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