Inverse Estimation of Transient Heat Flux to Slab Surface

钢铁研究学报(英文版), 2012, 19(11): 13-18.

Inverse Estimation of Transient Heat Flux to Slab Surface

^1, , ^2, , ^3, , ^4,

1.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology,Dalian 116024, Liaoning, China

2.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology,Dalian 116024, Liaoning, China

3.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology,Dalian 116024, Liaoning, China

4.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology,Dalian 116024, Liaoning, China

基金项目: Item Sponsored by National Natural Science Foundation of China(51206014, 11172055) Fundamental Research Funds for Central Universities of China(DUT11LK09)

关键词：热通量 , 逆估计 , 表面 , 板坯 , 瞬态 , 逆热传导问题 , 直接测量 , 使用模型

Inverse Estimation of Transient Heat Flux to Slab Surface

Keywords： transient heat flux , inverse estimation , reheating furnace , least-square method , sensitivity analysis ,

The transient heat flux was calculated using a model for inverse heat conduction problems based on temper- ature measurements. The unknown heat flux was taken as an optimization variable and solved by minimizing the differences between the calculated temperatures and the measured ones. Several examples were given to show the ef- fectiveness and the accuracy of the inverse algorithm in estimating the transient heat flux to a slab surface. The re sults show that the inverse approach can be applied in the steel industry or in other areas where the target of investi- gation is inaccessible to direct measurements or difficult to be directly modeled.

参考文献

[1]	Gao X W;He M C .A New Inverse Analysis Approach for Multi Region Heat Conduction BEM Using Complex-Variable-Differentiation Method[J].Engineering Analysis With Boundary Elements,2005,29(08):788.
[2]	Wikstrom P;Blasiak W;Berntsson F .Estimation of the Tran sient Surface Temperature and Heat Flux of a Steel Slab Using an Inverse Method[J].Applied Thermal Engineering,2007,27(14/15):2463.
[3]	Fung-Bao Liu .A modified genetic algorithm for solving the inverse heat transfer problem of estimating plan heat source[J].International Journal of Heat and Mass Transfer,2008(15/16):3745-3752.
[4]	T. Lu;B. Liu;P. X. Jiang;Y. W. Zhang;H. Li .A two-dimensional inverse heat conduction problem in estimating the fluid temperature in a pipeline[J].Applied thermal engineering: Design, processes, equipment, economics,2010(13):1574-1579.
[5]	Liu C S .A Self-Adaptive LGSM to Recover Initial Condition or Heat Source of One-Dimensional Heat Conduction Equation by Using Only Minimal Boundary Thermal Data[J].Internation-al Journal of Heat and Mass Transfer,2011,54(7/8):1305.
[6]	Miao Cui;Xiaowei Gao;Haigeng Chen .Inverse radiation analysis in an absorbing, emitting and non-gray participating medium[J].International Journal of Thermal Sciences,2011(6):898-905.
[7]	CUI Miao,CHEN Hai-geng,XU Li,WU Bin.Total Heat Exchange Factor Based on Non-Gray Radiation Properties of Gas in Reheating Furnace[J].钢铁研究学报（英文版）,2009(03):27-31,63.
[8]	Lyness J N;Moler C B .Numerical Differentiation of Analytic Functions[J].SIAM Journal on Numerical Analysis,1967,4(02):202.
[9]	WANG Bing quan.Handbook for Design of Industrial Fur-naces[M].北京:机械工业出版社,2000
[10]	L.H. Liu;H.P. Tan;Q.Z. Yu .Inverse radiation problem of sources and emissivities in one-dimensional semitransparent media[J].International Journal of Heat and Mass Transfer,2001(1):63-72.
[11]	Han S W;Baek S W;Kim M Y .Transient Radiative Heating Characteristics of Slabs in a Walking Beam Type Reheating Furnace[J].International Journal of Heat and Mass Trans fer,2009,52(3/4):1005.

上一张下一张

上一张下一张

计量

下载量()
访问量()

作者相关

在本站搜索
在百度学术搜索
在万方数据库搜索
在CNKI搜索

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%