2-D Transient Radiative Heat Transfer Analysis on the Slab in a Walking-Beam-Type Reheating Furnace

Abstract:

A two-dimensional mathematical heat transfer model for the prediction of temperature distribution within the slab has been developed by considering the thermal radiation in the walking-beam-type reheating furnace chamber and transient heat conduction in the slab, respectively. The steel slabs are heated up through the preheating, heating, and soaking zones in the furnace. Heat transfer characteristics and temperature uniformity of the slab is investigated by changing hot gas temperature. Comparison with the in-situ experimental data show that the present heat transfer model works well for the prediction of thermal behavior of the slab in the reheating furnace. The skid mark severity decreases with an increase in hot gas temperature. Keywords: Reheating Furnace, Thermal Radiation, Transient heat conduction

• Periodical: Applied Mechanics and Materials (Volume 610)
• Pages: 993-997
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.610.993
• Online since: August 2014
• Authors: Jun Bo Huang*, Jiin Yuh Jang, Chien Nan Lin, Chao Hua Wang
• Keywords: Reheating Furnace, Thermal Radiation, Transient Heat Conduction

References

[1] C.T. Hsieh, M.J. Huang, S.T. Lee, C.H. Wang, Numerical modeling of a walking beam type slab reheating furnace, Numer. Heat Transfer A 53 (2008) 966–981.

DOI: 10.1080/10407780701789831

[2] M.J. Huang, C.T. Hsieh, S.T. Lee, C.H. Wang, A coupled numerical study of slab temperature and gas temperature in the walking-beam-type slab reheating furnace, Numer. Heat Transfer A 54 (2008) 625–646.

DOI: 10.1080/10407780802289475

[3] S.H. Han, D.J. Chang, C.Y. Kim, A numerical analysis of slab heating characteristics in a walking beam type reheating furnace, Int. J. Heat Mass Transf. 53 (2010) 3855–3861.

DOI: 10.1016/j.ijheatmasstransfer.2010.05.002

[4] C. -T. Hsieh, M. -J. Huang, S. -T. Lee, C. -H. Wang, A numerical study of skid marks on the slabs in a walking-beam type slab reheating furnace, Numer. Heat Transfer A 57 (2010) 1–17.

DOI: 10.1080/10407780903529308

[5] S.H. Han, S.W. Baek, M.Y. Kim, Transient radiative heating characteristics of slabs in a walking beam type reheating furnace, Int. J. Heat Mass Transfer 52 (2009) 1005–1011.

DOI: 10.1016/j.ijheatmasstransfer.2008.07.030

[6] Z. Li, P. V. Barr and J. K. Brimacombe, Computer simulation of the slab reheating furnace, Canadian Metallurgical Quarterly, 27 (1998) 187-196.

DOI: 10.1179/cmq.1988.27.3.187

[7] B.Y. Yang, C.Y. Wu, C.J. Ho, T. -Y. Ho, A heat transfer model for skidmark formation on slab in a reheating furnace, J. Mater. Process. Manuf. Sci. 3 (1995) 277–295.

[8] M.Y. Kim, A heat transfer model for the analysis of transient heating of the slab in a direct-fired walking beam type reheating furnace, Int. J. Heat Mass Transf. 50 (2007) 3740–3748.

DOI: 10.1016/j.ijheatmasstransfer.2007.02.023

[9] J. G. Kim and K. Y. Huh, Prediction of transient slab temperature distribution in the re-heating furnace of a walking beam type for rolling of steel slabs, ISIJ International, 40 (2000) 1115-1123.

DOI: 10.2355/isijinternational.40.1115