The brazed plate-fin structure is the key component of a compact plate-fin heat exchanger. The residual stresses and thermal deformation induced by vacuum brazing may bring negative effects on the quality and the life of the plate-fin structure. Thus, it is important to optimize the brazing parameters in order to minimize such effects. This paper presents a three-dimensional finite element analysis for determining the residual stresses and thermal deformation of a three layered stainless steel plate-fin structure fabricated by nickel-based brazing. The features of residual stresses and thermal deformation distribution are discussed. The effects of three major brazing parameters including brazing temperature, clamping pressure load, and filler metal on the residual stresses and thermal deformation are investigated, respectively.
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November 2008
Research Papers
Study of Parameter Effects on Residual Stresses and Thermal Deformation of Brazed Plate-Fin Structure Using Finite Element Method
Hu Chen,
Hu Chen
College of Mechanical and Power Engineering,
e-mail: chh025@163.com
Nanjing University of Technology
, Nanjing, 210009 China; Technical Development Department, Ningbo Special Equipment Inspection Center, Ningbo, 315020 China
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Jian-Ming Gong,
Jian-Ming Gong
College of Mechanical and Power Engineering,
e-mail: gongjm@njut.edu.cn
Nanjing University of Technology
, Nanjing, 210009 China
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Shan-Tung Tu,
Shan-Tung Tu
College of Mechanical and Power Engineering,
e-mail: sttu@njut.edu.cn
Nanjing University of Technology
, Nanjing, 210009 China
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Lu-Yang Geng
Lu-Yang Geng
College of Mechanical and Power Engineering,
e-mail: young@njut.edu.cn
Nanjing University of Technology
, Nanjing, 210009 China
Search for other works by this author on:
Hu Chen
College of Mechanical and Power Engineering,
Nanjing University of Technology
, Nanjing, 210009 China; Technical Development Department, Ningbo Special Equipment Inspection Center, Ningbo, 315020 Chinae-mail: chh025@163.com
Jian-Ming Gong
College of Mechanical and Power Engineering,
Nanjing University of Technology
, Nanjing, 210009 Chinae-mail: gongjm@njut.edu.cn
Shan-Tung Tu
College of Mechanical and Power Engineering,
Nanjing University of Technology
, Nanjing, 210009 Chinae-mail: sttu@njut.edu.cn
Lu-Yang Geng
College of Mechanical and Power Engineering,
Nanjing University of Technology
, Nanjing, 210009 Chinae-mail: young@njut.edu.cn
J. Pressure Vessel Technol. Nov 2008, 130(4): 041202 (6 pages)
Published Online: August 20, 2008
Article history
Received:
May 4, 2006
Revised:
May 11, 2007
Published:
August 20, 2008
Citation
Chen, H., Gong, J., Tu, S., and Geng, L. (August 20, 2008). "Study of Parameter Effects on Residual Stresses and Thermal Deformation of Brazed Plate-Fin Structure Using Finite Element Method." ASME. J. Pressure Vessel Technol. November 2008; 130(4): 041202. https://doi.org/10.1115/1.2967740
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