Computational fluid-dynamics simulation of postcombustion in the electric-arc furnace

Li, Yun; Fruehan, R. J.

doi:10.1007/s11663-003-0079-9

Cited by 31 publications

(24 citation statements)

References 10 publications

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“…The graphical comparison consisting of proportional gas temperature differences from the simulation results was given in Li and Fruehan obtained distribution of the heat output from the CFD simulation and they gave the graphical result in Ref. [2]. They obtained 12% of the total energy transferred to the metal by the radiation while in current study is about % 9.…”

Section: Heterogeneous Particle Surface Reactionsmentioning

confidence: 64%

“…The CO gas emerges from the slag surface to inside the furnace therefore the slag surface is treated as an inlet boundary condition. In a typical heat in the EAF, about 1.5 kmol of CO is generated for per ton of steel [2]. Taking CO produced from FeO reaction [5,6] into account, CO applied as 0.021455 kg/m 3 s as an inlet for the slag surface.…”

Section: Boundary Conditionsmentioning

confidence: 99%

“…A comprehensive CFD model on post combustion reactions in the EAF has been studied by Li and Fruehan [2]. The authors simulated the radiation heat transfer, post combustion reactions, and de-post combustion reaction which is reacted between CO 2 and carbon in the liquid metal or the electrodes. In the light of this information, coal combustion reactions have been added and solved with using three gas phases and three char oxidation reactions in the current work.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

CFD modeling of carbon combustion and electrode radiation in an electric arc furnace

Yiğit

Büyükkaya

Durmaz

et al. 2015

Applied Thermal Engineering

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Section: Heterogeneous Particle Surface Reactionsmentioning

confidence: 64%

Section: Boundary Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

CFD modeling of carbon combustion and electrode radiation in an electric arc furnace

Yiğit

Büyükkaya

Durmaz

et al. 2015

Applied Thermal Engineering

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“…However, up to 10% (occasionally 30%) of carbon monoxide and 10% of hydrogen [1,2] remain unburned and leave the free board via the fourth hole. Since, these reactions are highly exothermic; the complete oxidation of the abovementioned gases is desired in order to maximize the thermal efficiency of the EAF.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al [2] presented a three-dimensional (3D) CFD simulation about the furnace freeboard. Chattopadhyay et al [4,5] recently published review about the application of CFD simulation in the field of ironand steelmaking.…”

Section: Introductionmentioning

confidence: 99%

Fluid dynamics of a post-combustion chamber in electric arc steelmaking plants

Labiscsak¹,

Straffelini²,

Corbetta³

et al. 2011

Computational Methods and Experimental Measurements XV

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In the present work, a complete three dimensional fluid dynamics simulation of reacting fluid flow in post-combustion chamber of an electric arc furnace is presented. The chemical composition of the simulated off-gases was representing typical crucial load. The gap (where oxygen enters to combust hydrogen and carbon monoxide) size was an independent variable. The optimal gap size is desirable: if the gap size is too large, the thermal efficiency diminishes. On the other hand, if the chosen gap size is too small, oxygen deficiency occurs, which lead to incomplete combustion of carbon monoxide and hydrogen. Herein established, that by means of CFD calculation, the optimal gap size can be evaluated for a particular steelmaking furnace.

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A Study of Post‐Combustion in an AOD Flue

Song

Ersson

Jönsson

2014

steel research int.

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An investigation on the post-combustion phenomena in an argon oxygen decarburization (AOD) system containing a converter and a flue has been conducted. An AOD converter is mainly characterized by nozzles installed at the lower side of the converter. The nozzles are intended to inject the decarburization gas of oxygen mixed with an inert gas such as argon. The injection promotes stirring and lowers the partial pressure of CO in the converter. For the AOD converter of interest in the current work, a fan is installed in the end of the AOD flue to help extract the off-gas from the converter. The influence of different fan gauge pressures as well as temperatures of the gas mixture, containing the generated CO and argon, on the postcombustion in the whole AOD system was studied. The realizable k-e model was employed as the turbulence model. In addition, the reaction and radiation were also taken into account by use of the species transport model and the discrete ordinate model. It was indicated from the modeling results that the post-combustion was only present in the flue for the present modeling conditions. Moreover, a critical fan gauge pressure was found, which could yield a maximum post-combustion in the flue gas. Finally, no obvious change on the post-combustion was shown if the inlet gas mixture temperature was varied between 1500 and 17008C.

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Computational fluid-dynamics simulation of postcombustion in the electric-arc furnace

Cited by 31 publications

References 10 publications

CFD modeling of carbon combustion and electrode radiation in an electric arc furnace

CFD modeling of carbon combustion and electrode radiation in an electric arc furnace

Fluid dynamics of a post-combustion chamber in electric arc steelmaking plants

A Study of Post‐Combustion in an AOD Flue

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