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Estimation of the Transient Surface Temperature, Heat Flux and Effective Heat Transfer Coefficient of a Slab in an Industrial Reheating Furnace by using an Inverse Method
Author(s) -
Wikström Patrik,
Blasiak Wlodzimierz,
Berntsson Fredrik
Publication year - 2007
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200705861
Subject(s) - slab , materials science , heat transfer coefficient , heat flux , transient (computer programming) , heat transfer , inverse , flux (metallurgy) , thermal conduction , process (computing) , temperature measurement , thermodynamics , mechanics , metallurgy , composite material , engineering , structural engineering , physics , geometry , mathematics , computer science , operating system
In the steel industry it is of great importance to be able to control the surface temperature and heating or cooling rates during heat treatment processes. In this paper, a steel slab is heated up to 1300°C in an industrial reheating furnace and the temperature data are recorded during the reheating process. The transient local surface temperature, heat flux and effective heat transfer coefficient of the steel slab ares calculated using a model for inverse heat conduction. The calculated surface temperatures are compared with the temperatures achieved by using a model of the heating process with the help of the software STEELTEMP® 2D. The results obtained show very good agreement and suggest that the inverse method can be applied to similar high temperature applications with very good accuracy.