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Chin. Phys. B, 2008, Vol. 17(4): 1312-1317    DOI: 10.1088/1674-1056/17/4/027

Simulation study on reconstruction model of three-dimensional temperature distribution within visible range in furnace

Liu Dong, Wang Fei, Huang Qun-Xing, Yan Jian-Hua, Chi Yong, Cen Ke-Fa
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Abstract  This paper presents a reconstruction model of three-dimensional temperature distribution in furnace based on radiative energy images captured by charge-coupled device (CCD) cameras within the visible wavelength range. Numerical simulation case was used in this study and a zigzag eccentric temperature distribution was assumed to verify the model. Least square QR-factorization (LSQR) method was introduced to deal with reconstruction equation. It is found that the reconstructed temperature distributions in low-temperature areas had some fluctuations and high-temperature areas were reconstructed well. The whole reconstruction relative error was mainly due to errors in low-temperature areas and the relative error for highest-temperature reconstruction was quite small.
Keywords:  charge-coupled device      radiative energy images      visible range      three-dimensional temperature distribution  
Received:  07 May 2007      Revised:  12 October 2007      Published:  20 April 2008
PACS:  07.05.Pj (Image processing)  
  07.20.Hy (Furnaces; heaters)  
  42.30.Wb (Image reconstruction; tomography)  
  42.79.Pw (Imaging detectors and sensors)  
Fund: Project supported by the State Key Program of National Natural Science Foundation of China (Grant No 60534030) and Program for Changjiang Scholars and Innovative Research Team in University (Grant No IRT0434).

Cite this article: 

Liu Dong, Wang Fei, Huang Qun-Xing, Yan Jian-Hua, Chi Yong, Cen Ke-Fa Simulation study on reconstruction model of three-dimensional temperature distribution within visible range in furnace 2008 Chin. Phys. B 17 1312

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