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Zonal model for an effective simulation of heat transfer processes in walking beam steel reheating furnace

Citace:
ŠVANTNER, M., ŠTUDENT, J., VESELÝ, Z. Zonal model for an effective simulation of heat transfer processes in walking beam steel reheating furnace. In Metal 2019. Ostrava: Tanger Ltd., 2019. s. NESTRÁNKOVÁNO. ISBN: 978-80-87294-91-8 , ISSN: neuvedeno
Druh: STAŤ VE SBORNÍKU
Jazyk publikace: eng
Anglický název: Zonal model for an effective simulation of heat transfer processes in walking beam steel reheating furnace
Rok vydání: 2019
Místo konání: Brno
Název zdroje: Tanger Ltd.
Autoři: Ing. Michal Švantner Ph.D. , Ing. Josef Študent , Ing. Zdeněk Veselý Ph.D.
Abstrakt CZ: Příspěvek popisuje 3D zonální model pro simulaci tepelného procesu ohřevu vsázky v průběžné krokové peci. Jsou popsány postupy a metody modelování, je provedeno přímě měření a výsledky měření jsou porovnány s výsledky numerické simulace. Je ukázáno, že mezi výsledky představeného modelu a přímého měření je velmi dobrá shoda.
Abstrakt EN: 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.
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