3-D Transient Heat Transfer Analysis of Slab Heating Characteristics in a Reheating Furnace in Hot Strip Mills
The reheating furnace is used to reheat the steel slabs
before the hot-rolling process. The supported system includes the
stationary/moving beams, and the skid buttons which block some
thermal radiation transmitted to the bottom of the slabs. Therefore, it is
important to analyze the steel slab temperature distribution during the
heating period. A three-dimensional mathematical transient heat
transfer model for the prediction of temperature distribution within the
slab has been developed. The effects of different skid button height
(H=60mm, 90mm, and 120mm) and different gap distance between
two slabs (S=50mm, 75mm, and 100mm) on the slab skid mark
formation and temperature profiles are investigated. Comparison with
the in-situ experimental data from Steel Company in Taiwan shows
that the present heat transfer model works well for the prediction of
thermal behavior of the slab in the reheating furnace. It is found that
the skid mark severity decreases with an increase in the skid button
height. The effect of gap distance is important only for the slab edge
planes, while it is insignificant for the slab central planes.
[1] 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,”
International Journal of Heat and Mass Transfer, 50, pp. 3740-3748,
2007.
[2] S. H. Han, S. W. Baek, M. Y. Kim, “Transient Radiative Heating
Characteristics of Slabs in a Walking Beam Type Reheating Furnace,”
International Journal of Heat and Mass Transfer, 52, pp. 1005-1011,
2009.
[3] 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,” Numerical Heat Transfer, 57:1, pp. 1-17, 2010.
[4] S. H. Han, D. J. Chang, C. Y. Kim, “A Numerical Analysis of Slab
Heating Characteristic in a Walking Beam Type Reheating Furnace,”
International Journal of Heat and Mass Transfer, 53, pp. 3855-3861,
2010.
[5] S. H. Han, D. J. Chang, C. Huh, “Efficiency Analysis of Radiative Slab
Heating in a Walking-Beam-Type Reheating Furnace,” Energy, 36, pp.
1265-1272, 2011.
[6] V. K. Singh, Talukdar P. B. Talukdar, “Comparisons of Different Heat
Transfer Models of a Walking Beam Type Reheat Furnace,” International
Communications in Heat and Mass Transfer, 47, pp. 20-26. 2013.
[1] 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,”
International Journal of Heat and Mass Transfer, 50, pp. 3740-3748,
2007.
[2] S. H. Han, S. W. Baek, M. Y. Kim, “Transient Radiative Heating
Characteristics of Slabs in a Walking Beam Type Reheating Furnace,”
International Journal of Heat and Mass Transfer, 52, pp. 1005-1011,
2009.
[3] 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,” Numerical Heat Transfer, 57:1, pp. 1-17, 2010.
[4] S. H. Han, D. J. Chang, C. Y. Kim, “A Numerical Analysis of Slab
Heating Characteristic in a Walking Beam Type Reheating Furnace,”
International Journal of Heat and Mass Transfer, 53, pp. 3855-3861,
2010.
[5] S. H. Han, D. J. Chang, C. Huh, “Efficiency Analysis of Radiative Slab
Heating in a Walking-Beam-Type Reheating Furnace,” Energy, 36, pp.
1265-1272, 2011.
[6] V. K. Singh, Talukdar P. B. Talukdar, “Comparisons of Different Heat
Transfer Models of a Walking Beam Type Reheat Furnace,” International
Communications in Heat and Mass Transfer, 47, pp. 20-26. 2013.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:71178", author = "J. Y. Jang and Y. W. Lee and C. N. Lin and C. H. Wang", title = "3-D Transient Heat Transfer Analysis of Slab Heating Characteristics in a Reheating Furnace in Hot Strip Mills", abstract = "The reheating furnace is used to reheat the steel slabs
before the hot-rolling process. The supported system includes the
stationary/moving beams, and the skid buttons which block some
thermal radiation transmitted to the bottom of the slabs. Therefore, it is
important to analyze the steel slab temperature distribution during the
heating period. A three-dimensional mathematical transient heat
transfer model for the prediction of temperature distribution within the
slab has been developed. The effects of different skid button height
(H=60mm, 90mm, and 120mm) and different gap distance between
two slabs (S=50mm, 75mm, and 100mm) on the slab skid mark
formation and temperature profiles are investigated. Comparison with
the in-situ experimental data from Steel Company in Taiwan shows
that the present heat transfer model works well for the prediction of
thermal behavior of the slab in the reheating furnace. It is found that
the skid mark severity decreases with an increase in the skid button
height. The effect of gap distance is important only for the slab edge
planes, while it is insignificant for the slab central planes.", keywords = "3-D, slab, transient heat conduction, reheating
furnace, thermal radiation.", volume = "9", number = "11", pages = "1923-5", }