Heating Process Simulation of Steel Coil in Bell-Type Annealing Furnace

被引：2
|
作者：
Yang, Peipei [1 ]
Wen, Zhi [1 ,2 ]
Dou, Ruifeng [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing, Peoples R China
[2] Beijing Key Lab Energy Saving & Emiss Reduct Met, Beijing, Peoples R China
来源：
HEAT TRANSFER-ASIAN RESEARCH | 2016年 / 45卷 / 08期
关键词：
orthogonal test method; Nu number; flow rate; Monte Carlo; radiation network diagram;
D O I：
10.1002/htj.21185
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This study examines two important parameters: the convective heat-transfer coefficient and radiative heat-transfer coefficient, which have a significant impact on coil temperature in a furnace. A new three-dimensional model is proposed for convective heat transfer, and the factors affecting the Nusselt number (Nu) are studied using the orthogonal test method. Finally, the relationship between the Nu number and flow rate is determined. Considering the complex geometric structure of a furnace, this study uses the Monte Carlo method to calculate the angle factor and obtains the radiant heat flux using a radiation network diagram. The calculated values are applied to steel coil temperatures for accurate boundary conditions. The results show that the temperature simulated by using the mathematical model is in good agreement with the experimental data obtained with the thermocouple insert experiment. (C) 2015 Wiley Periodicals, Inc. Published online in Wiley Online Library (wileyonlinelibrary.com/journal/htj).
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页码：714 / 729
页数：16
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