Heatline Based Thermal Behaviour during Cooling of a Hot Moving Steel Plate Using Single Jet

Abstract:

The article deals with visualization of heatlines and isotherms during cooling of a hot moving steel plate numerically. The cooling of the plate is assumed using single spray-water jet. The visualization process is carried out by forming and discretizing the governing energy equation based on finite volume method. The linear algebraic equations are solved by tri-diagonal matrix algorithm (TDMA). Accordingly, a numerical code is developed on FORTRAN platform. In the computational domain, a suitable heat transfer region for cooling is identified analyzing the heatline distribution in the domain and depends on the process parameters. Accordingly a parametric study is performed and reveals that effective heat transfer region increases with increasing jet velocity and cooling methods, and decreases with increasing plate velocity.

• Periodical: Applied Mechanics and Materials (Volumes 592-594)
• Pages: 1622-1626
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.592-594.1622
• Online since: July 2014
• Authors: Suman Samanta, Saikat Mukherjee, Mrinmoy Dhar, Shambhunath Barman, Nilkanta Barman*, Achintya Mukhopadhyay, Swarnendu Sen
• Keywords: Cooling, Finite Volume Method (FVM), Heatlines, Hot Moving Plate

References

[1] W. Timm, K. Wienzierl and A. Leipertz, Heat transfer in subcooled jet impingement boiling at high wall temperatures. IJHMT 46, 1385, (2003).

DOI: 10.1016/s0017-9310(02)00416-7

[2] S.K. Biswas, S.J. Chen and A. Satyanarayana , Optimal Temperature Tracking for Accelerated Cooling Process in Hot Rolling of Steel. Dynamics and Control, 7, (1997), 327–340.

[3] J. Horsky´, M. Raudensky and P. Kotrba´c'ek, Experimental study of long product cooling in hot rolling. Journal of Materials Processing Technology 80–81, 337–340, (1998).

DOI: 10.1016/s0924-0136(98)00191-5

[4] S. Serajzadeh, Modelling of phase transformation during cooling of steel. J. of Mat. Proc. Tech. 146, 311–317.

[5] H. Fujimoto, H. Takuda, N. Hatta and R. Viskanta, Numerical Simulation of Transient Cooling of a Hot Solid by an Impinging Free Surface Jet. Numerical Heat Transfer, Part A: Applications: An Int. J. of Computation and Methodology.

DOI: 10.1080/104077899274444

[6] A. Bejan, 2004. Convective heat transfer (third Ed. ) Wiley India(P. )Ltd., New Delhi – 110002.

[7] S. Barman, N. Barman, A. Mukhopadhyay and S. Sen., Thermal Behavior of a Hot Moving Steel Strip Under Multiple Cooling Jets, Heat Transfer Engineering, 14, (2014), 1-7.

DOI: 10.1080/01457632.2013.877315

[8] S.V. Patankar, Numerical heat transfer and fluid flow, Hemisphere publishing corporation, United States of America(1980).