CFD Modeling of HBI/scrap Melting in Industrial EAF and the Impact of Charge Layering on Melting Performance

Ugarte, Orlando; Li, Jianghua; Haeberle, Jeff; Frasz, Thomas; Okosun, Tyamo; Zhou, Chenn Q.

doi:10.3390/ma17215139

Open AccessArticle

CFD Modeling of HBI/scrap Melting in Industrial EAF and the Impact of Charge Layering on Melting Performance

by

Orlando Ugarte

¹,

Jianghua Li

²,

Jeff Haeberle

³,

Thomas Frasz

³,

Tyamo Okosun

¹ and

Chenn Q. Zhou

^1,*

¹

Center for Innovation through Visualization and Simulation (CIVS), Steel Manufacturing Simulation and Visualization Consortium (SMSVC), Purdue University Northwest, Hammond, IN 46323, USA

²

Cleveland-Cliffs Research and Innovation Center, Middletown, OH 45005, USA

³

Cleveland-Cliffs Mansfield Works, Mansfield, OH 44903, USA

^*

Author to whom correspondence should be addressed.

Materials 2024, 17(21), 5139; https://doi.org/10.3390/ma17215139

Submission received: 13 September 2024 / Revised: 8 October 2024 / Accepted: 12 October 2024 / Published: 22 October 2024

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Abstract

The melting of scrap and hot briquetted iron (HBI) in an AC electric arc furnace (EAF) is simulated by an advanced 3D computational fluid dynamics (CFD) model that captures the arc heating, the scrap/HBI melting process, and the solid collapse mechanisms. The CFD model is used to simulate a scenario where charge layering and EAF power profiles are provided by a real EAF operation. CFD simulation of the EAF operation shows proper prediction of the charge melting when compared with standard industry practice. Namely, the CFD model predicts a 32.5%/67.5% ratio of solid/liquid steel at the beginning of refining, which approaches the 30%/70% ratio used in standard practice. Based on this prediction, the melting rate in the CFD results differs by 8.3% from actual EAF operation. The impact of charge layering on melting is also investigated. CFD results show that distributing charge material into a greater number of layers in the first bucket (10 layers as compared to 4) enhances the melting rate by 12%. However, including dense material at the bottom of the furnace deteriorates melting performance, reducing the impact of the number of layers of the charge. The CFD platform can be used to optimize the use of HBI/scrap in real EAF operations and to determine best recipe practices.

Keywords: electric arc furnace; HBI; CFD; scrap layering; melting; optimization

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MDPI and ACS Style

Ugarte, O.; Li, J.; Haeberle, J.; Frasz, T.; Okosun, T.; Zhou, C.Q. CFD Modeling of HBI/scrap Melting in Industrial EAF and the Impact of Charge Layering on Melting Performance. Materials 2024, 17, 5139. https://doi.org/10.3390/ma17215139

AMA Style

Ugarte O, Li J, Haeberle J, Frasz T, Okosun T, Zhou CQ. CFD Modeling of HBI/scrap Melting in Industrial EAF and the Impact of Charge Layering on Melting Performance. Materials. 2024; 17(21):5139. https://doi.org/10.3390/ma17215139

Chicago/Turabian Style

Ugarte, Orlando, Jianghua Li, Jeff Haeberle, Thomas Frasz, Tyamo Okosun, and Chenn Q. Zhou. 2024. "CFD Modeling of HBI/scrap Melting in Industrial EAF and the Impact of Charge Layering on Melting Performance" Materials 17, no. 21: 5139. https://doi.org/10.3390/ma17215139

APA Style

Ugarte, O., Li, J., Haeberle, J., Frasz, T., Okosun, T., & Zhou, C. Q. (2024). CFD Modeling of HBI/scrap Melting in Industrial EAF and the Impact of Charge Layering on Melting Performance. Materials, 17(21), 5139. https://doi.org/10.3390/ma17215139

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CFD Modeling of HBI/scrap Melting in Industrial EAF and the Impact of Charge Layering on Melting Performance

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