Advanced search
1 file | 1.20 MB Add to list

Numerical analysis of the transient heating characteristics of a slab in a re-heat furnace

Zaaquib Ahmed (UGent) , Ilya T'Jollyn (UGent) , Steven Lecompte (UGent) , Teun De Raad and Michel De Paepe (UGent)
Author
Organization
Abstract
Steel is the most widely used metal alloy in the world. Among the different types of steels used in construction and industry, flat steel has a 46% share in the global steel production. It is produced by heating steel slabs in a reheating furnace up-to a temperature of about 1250 oC[6]. These hot slabs are then rolled into sheets using rollers in multiple passes. During the reheating process, temperature uniformity inside the slab is of utmost importance, as any inconsistency in the cross-sectional temperature of the slab may incur severe damages to the rollers. A thorough investigation of the reheating process through experimental techniques alone is not feasible due to the harsh environment inside the furnace. Numerical techniques are therefore necessary to understand the heat transfer process inside the slabs. The modelling methodology starts with a steady-state simulation of the furnace with slabs placed in tandem along the length of the furnace. The combustion process is simulated along with the heat fluxes onto the slab surfaces. These heat fluxes are then used as an input for the transient model (the focus of this paper),in order to obtain the cross-sectional temperature of the slabs which are eventually compared to the slab trials, where thermocouples inside the slabs measure temperatures every second during its residence time inside the furnace. The transient simulations allow us to understand the distribution inside a slab and penetration depth of the cold spots which are inflicted on the slab by the water cooled skids.
Keywords
Transient model, Reheat furnace, Computational Fluid Dynamics, Heat flux, Flat Steel

Downloads

  • (...).pdf
    • full text (Accepted manuscript)
    • |
    • UGent only
    • |
    • PDF
    • |
    • 1.20 MB

Citation

Please use this url to cite or link to this publication:

MLA
Ahmed, Zaaquib, et al. “Numerical Analysis of the Transient Heating Characteristics of a Slab in a Re-Heat Furnace.” Proceedings of the 12th European Conference on Industrial Furnaces and Boilers, edited by Viktor Scherer et al., 2020.
APA
Ahmed, Z., T’Jollyn, I., Lecompte, S., De Raad, T., & De Paepe, M. (2020). Numerical analysis of the transient heating characteristics of a slab in a re-heat furnace. In V. Scherer, N. Fricker, & A. Reis (Eds.), Proceedings of the 12th European Conference on Industrial Furnaces and Boilers.
Chicago author-date
Ahmed, Zaaquib, Ilya T’Jollyn, Steven Lecompte, Teun De Raad, and Michel De Paepe. 2020. “Numerical Analysis of the Transient Heating Characteristics of a Slab in a Re-Heat Furnace.” In Proceedings of the 12th European Conference on Industrial Furnaces and Boilers, edited by Viktor Scherer, Neil Fricker, and Albino Reis.
Chicago author-date (all authors)
Ahmed, Zaaquib, Ilya T’Jollyn, Steven Lecompte, Teun De Raad, and Michel De Paepe. 2020. “Numerical Analysis of the Transient Heating Characteristics of a Slab in a Re-Heat Furnace.” In Proceedings of the 12th European Conference on Industrial Furnaces and Boilers, ed by. Viktor Scherer, Neil Fricker, and Albino Reis.
Vancouver
1.
Ahmed Z, T’Jollyn I, Lecompte S, De Raad T, De Paepe M. Numerical analysis of the transient heating characteristics of a slab in a re-heat furnace. In: Scherer V, Fricker N, Reis A, editors. Proceedings of the 12th European Conference on Industrial Furnaces and Boilers. 2020.
IEEE
[1]
Z. Ahmed, I. T’Jollyn, S. Lecompte, T. De Raad, and M. De Paepe, “Numerical analysis of the transient heating characteristics of a slab in a re-heat furnace,” in Proceedings of the 12th European Conference on Industrial Furnaces and Boilers, Porto, Portugal (online), 2020.
@inproceedings{8734532,
  abstract     = {{Steel is the most widely used metal alloy in the world. Among the different types of steels used in construction and industry, flat steel has a 46% share in the global steel production. It is produced by heating steel slabs in a reheating furnace up-to a temperature of about 1250 oC[6]. These hot slabs are then rolled into sheets using rollers in multiple passes. During the reheating process, temperature uniformity inside the slab is of utmost importance, as any inconsistency in the cross-sectional temperature of the slab may incur severe damages to the rollers. A thorough investigation of the reheating process through experimental techniques alone is not feasible due to the harsh environment inside the furnace. Numerical techniques are therefore necessary to understand the heat transfer process inside the slabs. The modelling methodology starts with a steady-state simulation of the furnace with slabs placed in tandem along the length of the furnace. The combustion process is simulated along with the heat fluxes onto the slab surfaces. These heat fluxes are then used as an input for the transient model (the focus of this paper),in order to obtain the cross-sectional temperature of the slabs which are eventually compared to the slab trials, where thermocouples inside the slabs measure temperatures every second during its residence time inside the furnace. The transient simulations allow us to understand the distribution inside a slab and penetration depth of the cold spots which are inflicted on the slab by the water cooled skids.}},
  author       = {{Ahmed, Zaaquib and T'Jollyn, Ilya and Lecompte, Steven and De Raad, Teun and De Paepe, Michel}},
  booktitle    = {{Proceedings of the 12th European Conference on Industrial Furnaces and Boilers}},
  editor       = {{Scherer, Viktor and Fricker, Neil and Reis, Albino}},
  isbn         = {{9789729930980}},
  keywords     = {{Transient model,Reheat furnace,Computational Fluid Dynamics,Heat flux,Flat Steel}},
  language     = {{eng}},
  location     = {{Porto, Portugal (online)}},
  pages        = {{9}},
  title        = {{Numerical analysis of the transient heating characteristics of a slab in a re-heat furnace}},
  url          = {{https://infub.pt/Geral/paginas.aspx?cod=138}},
  year         = {{2020}},
}