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http://dx.doi.org/10.5916/jkosme.2017.41.1.1

Study on copper end-tab shape for maximum heat discharging performance  

Choi, Yeou-Myeong (Graduate school of Pukyong National University)
Choi, Yoon-Hwan (Institute of Industrial Science and Technology, Pukyong National University)
Cho, Sang-Myung (Department of Materials System Engineering, Pukyong National University)
Park, Jung-Hyun (Graduate school of Pukyong National University)
Lee, Yeon-Won (Department of Mechanical Design Engineering, Pukyong National University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.41, no.1, 2017 , pp. 1-7 More about this Journal
Abstract
When implementing butt joint welding of two plates, it is useful to attach end-tabs made of a metal with high heat conductivity (e.g., copper) at the front and back sides of the welded plates to prevent the bead from rolling down and prevent defects that may occur at the tips of the weld zone. In this study, the fin shape, which is known to have good heat discharging characteristics by natural convection, has been applied to enhance the cooling performance of the end-tab. From both experiment and numerical analysis, it was confirmed that end-tabs with fin-shaped holes have better heat discharging performance than end-tabs without holes. Through thermal and fluid flow analysis, the cooling rates of end-tabs with different hole shapes were estimated in order to figure out characteristics of shape factor that are important for the heat discharging performance. As a result, we found that the structure including vertical fins with optimal fin gap was the best-performing shape.
Keywords
Butt joint welding; End-tab; Cooling performance; Fin;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 J. D. Kim, B. L. Kil, and J. H. Lee, "Effect of process parameters on laser weldability of AZ31 magnesium alloy," Journal of the Korean Society of Marine Engineering, vol. 32, no. 4, pp. 570-577, 2008 (in Korean).   DOI
2 K. W. Kim, G. J. Nam, J. H. Lee, J. Suh, and H. Y. Cho, "Finite element analysis for prediction of bead shape on Nd:YAG laser butt welding," Journal of the Korean Society of Marine Engineering, vol. 32, no. 1, pp. 137-146, 2008 (in Korean).   DOI
3 J. D. Kim, J. B. Lee, C. J. Lee, M. G. Song, and G. J. Nam, "Weldability of STS316L for LNG carrier by fiber laser," Journal of the Korean Society of Marine Engineering, vol. 36, no. 8, pp. 1061-1068, 2012 (in Korean).   DOI
4 J. T. Kim, D. C. Lee, H. M. Jeong, and H. S. Chung, "A study on the compensation margin on butt welding joint of large steel plates in shipyards," Journal of the Korean Society of Marine Engineering, vol. 37, no. 5, pp. 461-466, 2013 (in Korean).   DOI
5 Cyber Welding School, http://www.eduwelding.co.kr/, Accessed September 24, 2006.
6 Y. M. Choi, Y. H. Choi, S. M. Cho, and Y. W. Lee, "Heat transfer of copper end-tab with fin during welding process," Proceedings of the Korean Society of Mechanical Engineers Conference, pp. 3080-3083, 2014 (in Korean).
7 S. H. Kim, J. W. Lee, J. H. Lee, J. P. Lee, and N. H. Kim, "Air-side performance comparison of fin-and-tube heat exchanger having plate and spiral fins," Proceedings of the Society of Air-conditioning and Refrigerating Engineers of Korea Summer Conference, pp. 1226-1229, 2010 (in Korean).
8 H. H. Oh, S. J. Kim, Y. D. Lee, and M. J. Oh, "Comparison of fluid flow and thermal characteristics between the plate-fin and pin-fin heat sinks," Proceedings of the Korean Society of Mechanical Engineers Spring Conference, pp. 2242-2247, 2005 (in Korean).
9 H. H. Jung, "A study on the fin efficiency of continuous fin-tube heat exchanger-In the case of sensible heat transfer," Journal of the Korean Society of Marine Engineering, vol. 20, no. 5, pp. 522-527, 1996 (in Korean).
10 Y. A. Cengel, O. B. Kwon, E. P. Kim, T. G. Kim, T. Y. Kim, S. Y. Park, D. S. Bae, Y. G. Eom, D. H. Lee, and K. B. Lim, Introduction to Thermodynamics & Heat Transfer, 1st Ed. Seoul, Korea: INTERVISION, 2005 (in Korean).