ZONAL MODEL FOR AN EFFECTIVE SIMULATION OF HEAT TRANSFER PROCESSES IN WALKING BEAM STEEL REHEATING FURNACES

1 ŠVANTNER Michal
Co-authors:
2 ŠTUDENT Josef 3 VESELÝ Zdeněk
Institutions:
1 University of West Bohemia, Plzeň, Czech Republic, EU, msvantne@ntc.zcu.cz
2 University of West Bohemia, Plzeň, Czech Republic, EU, studentj@ntc.zcu.cz
3 University of West Bohemia, Plzeň, Czech Republic, EU, zvesely@ntc.zcu.cz
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
107-110
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
225 views / 134 downloads
Abstract

Continuous steel reheating furnaces belong to high-energy consumption units and an optimization of their operation can thus bring significant economic and ecological benefits. Numerical modelling is one of the tools for an optimization of a design, process parameters and operation control of the furnaces. A 3D zonal model of a continuous gas burners heated walking-beam furnace is introduced in this contribution. A solution of heat transfer process in the furnace is based on a Hottel zonal method and compartment based discretization. The solution includes convective and radiative heat transfer in the furnace including a participation of a semi-transparent gaseous furnace atmosphere. A method of direct measurement of a charge heating in a continuous walking beam furnace is presented. The method is based on a thermal-box barrier device, which allows temperature measurement of a tested beam during its entire passage throughout the furnace. Results obtained by the numerical simulation and the measurement are compared and a good agreement is confirmed. It is demonstrated that the presented zonal model is an effective tool, which can bring accurate enough results at a very acceptable time.

Keywords: Walking-beam furnace, steel reheating, radiation heat transfer, numerical model, zonal method, temperature measurement, thermal box-barrier

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Scroll to Top