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http://dx.doi.org/10.3795/KSME-B.2006.30.10.950

2D Heat Transfer Model for the Prediction of Temperature of Slab in a Direct-Fired Reheating Furnace  

Lee Dong-Eun (포스코 기술연구소 공정제어연구그룹)
Park Hae-Doo (포스코 기술연구소 공정제어연구그룹)
Kim Man-Young (전북대학교 기계항공시스템공학부, 전북대학교 부설 공학연구원 공업기술연구센터)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.10, 2006 , pp. 950-956 More about this Journal
Abstract
A mathematical heat transfer model for the prediction of heat flux on the slab surface and temperature distribution in the slab has been developed by considering the thermal radiation in the furnace and transient conduction governing equations in the slab, respectively. The furnace is modeled as radiating medium with spatially varying temperature and constant absorption coefficient. The slab is moved with constant speed through non-firing, charging, preheating, heating, and soaking zones in the furnace. Radiative heat flux which is calculated from the radiative heat exchange within the furnace modeled using the FVM by considering the effect of furnace wall, slab, and combustion gases is applied as the boundary condition of the transient conduction equation of the slab. Heat transfer characteristics and temperature behavior of the slab is investigated by changing such parameters as absorption coefficient and emissivity of the slab. Comparison with the experimental work shows that the present heat transfer model works well for the prediction of thermal behavior of the slab in the reheating furnace.
Keywords
Reheating Furnace; Slab; Heat Transfer; Thermal Radiation; Heat Flux;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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