In steel rolling mills reheat furnaces are used to heat the billets prior to rolling processes. Reheating is one of the most energy intensive processes in the steel industries. Inadequate temperature measuring techniques and extremely complex analytical solution for temperature filed calculations demands suitable numerical model. In the present work a three dimensional transient heat transfer model is developed for billet heating in reheat furnaces. Conduction heat transfer within the billets is modeled using Finite Difference Method (FDM). Fully implicit spatial discretization approximation was used for three dimensional heat diffusion equation of billet. The three dimensional model takes into account the temperature dependent thermo physical properties, reaction heat effect and growing oxide layer. Algorithm is implemented in MATLAB® to solve three dimensional discretization equations. Model is capable of predicting the temperature field for billet and oxide scale thickness for any residence time. The predicted results are in reasonable concurrence with available data. The main objective of this work is to predict billet temperature field and oxide scale thickness for the various residence times, which may be vital for development of energy efficient optimization strategy for reheating process.
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ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels
July 8–12, 2012
Rio Grande, Puerto Rico, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4478-6
PROCEEDINGS PAPER
Three Dimensional Transient Heat Transfer Model for Steel Billet Heating in Reheat Furnace
Satish Kumar Dubey,
Satish Kumar Dubey
Birla Institute of Technology and Science, Pilani, Rajasthan, India
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Neelesh Agarwal,
Neelesh Agarwal
Birla Institute of Technology and Science, Pilani, Rajasthan, India
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P. Srinivasan
P. Srinivasan
Birla Institute of Technology and Science, Pilani, Rajasthan, India
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Satish Kumar Dubey
Birla Institute of Technology and Science, Pilani, Rajasthan, India
Neelesh Agarwal
Birla Institute of Technology and Science, Pilani, Rajasthan, India
P. Srinivasan
Birla Institute of Technology and Science, Pilani, Rajasthan, India
Paper No:
HT2012-58151, pp. 963-967; 5 pages
Published Online:
July 24, 2013
Citation
Dubey, SK, Agarwal, N, & Srinivasan, P. "Three Dimensional Transient Heat Transfer Model for Steel Billet Heating in Reheat Furnace." Proceedings of the ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 2: Heat Transfer Enhancement for Practical Applications; Fire and Combustion; Multi-Phase Systems; Heat Transfer in Electronic Equipment; Low Temperature Heat Transfer; Computational Heat Transfer. Rio Grande, Puerto Rico, USA. July 8–12, 2012. pp. 963-967. ASME. https://doi.org/10.1115/HT2012-58151
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