In order to investigate the strength design problem of the brazed aluminum plate-fin heat exchanger header under complex external piping loads, the limit load interactions of the header under combined piping loads are studied in this paper. To establish the limit piping load interaction curves, nonlinear finite element analysis assuming the elastic perfectly plastic material model is performed by using the commercial finite element analysis software ANSYS and multiple piping load combinations, which are the combination of orthogonal bending moment components, torque component-shear force component, bending moment component-axial force component, compound bending moment-axial force component, and torque component-compound shear force, of the header with six opening ratios ranging from 0.5 to 1 are explored. The results of the interaction diagrams show that the feasible combined piping load zone of the header derived from the interaction curves can be simplified as a triangular zone determined by the individual limit piping load components safely and the simplified feasible zone is suggested to be used for establishing a simplified safety assessment method for the header under combined piping loads.
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e-mail: mkwang@fzu.edu.cn
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June 2011
Research Papers
The Limit Load Interactions of the Brazed Aluminum Plate-Fin Heat Exchanger Header Under Combined Piping Loads
Wei Wang,
Wei Wang
College of Mechanical Engineering and Automation,
e-mail: mkwang@fzu.edu.cn
Fuzhou University
, Fuzhou, Fujian 350108, P.R. China
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Liang Chen,
Liang Chen
Fujian Provincial Engineering Research Center of Digital Design for Manufacturing
, Fuzhou, Fujian 350002,
P.R. China
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Caidong Guo
Caidong Guo
Minxi Vocational Technical College
, Longyan, Fujian 364021, P.R. China
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Wei Wang
College of Mechanical Engineering and Automation,
Fuzhou University
, Fuzhou, Fujian 350108, P.R. Chinae-mail: mkwang@fzu.edu.cn
Liang Chen
Fujian Provincial Engineering Research Center of Digital Design for Manufacturing
, Fuzhou, Fujian 350002,
P.R. China
Caidong Guo
Minxi Vocational Technical College
, Longyan, Fujian 364021, P.R. ChinaJ. Pressure Vessel Technol. Jun 2011, 133(3): 031204 (7 pages)
Published Online: March 30, 2011
Article history
Received:
August 15, 2009
Revised:
June 5, 2010
Online:
March 30, 2011
Published:
March 30, 2011
Citation
Wang, W., Chen, L., and Guo, C. (March 30, 2011). "The Limit Load Interactions of the Brazed Aluminum Plate-Fin Heat Exchanger Header Under Combined Piping Loads." ASME. J. Pressure Vessel Technol. June 2011; 133(3): 031204. https://doi.org/10.1115/1.4002050
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