Browse > Article
http://dx.doi.org/10.5916/jkosme.2014.38.6.615

A study on heat transfer and pressure drop characteristics of plain fin-tube heat exchanger using CFD analysis  

Liu, Zhao (Department of Mechanical Engineering, Graduate School, Gachon University)
Yoon, Jun-Kyu (Department of Mechanical Engineering, Gachon University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.38, no.6, 2014 , pp. 615-624 More about this Journal
Abstract
The fin-tube heat exchanger being used for industrial boiler, radiator, refrigerator has been conducted in various studies to improve it's performance. In this study, the characteristics of heat transfer and pressure drop was theoretically analyzed according to longitudinal pitch, location of vortex generator, bump phase and number of the tube surface about the plain fin-tube heat exchanger. The boundary condition for the CFD (Computational Fluid Dynamics) analysis applied with the SST (Shear Stress Transport) turbulence model assumed as the tube surface temperature of 333 K, the inlet air temperature of 423-438 K and the inlet air velocity of 1.5~2.1 m/s. The analysis results indicated that the heat transfer coefficient is not affected highly by the longitudinal pitch, and the heat transfer characteristics was more favorable when the vortex generator was located in front of the tube. Also the bump phase of the tube surface indicated that circle type was more appropriate than serrated type and triangle type in the characteristics of heat transfer and pressure drop, and the sixteen's bump phase of circle type was most favorable.
Keywords
CFD; Plain Fin-Tube Heat Exchanger; Heat Transfer; Vortex Generator; SST Transport Turbulent Model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 M. K. Lee, K. S. Chang, Y. C. Kweon, and J. W. Yun, "Development on new fin of fin-tube heat exchanger for A/C system," Proceeding of the Society of Air-Conditioning and Refrigeration Engineers, pp. 153-158, 2002 (in Korean).
2 J. D. Lee and J. Y. Yun, "Research review for parametric characteristics on heat exchanger," Transactions of the Korean Society of Mechanical Engineers, vol. 33, no. 1, pp. 936-941, 1993 (in Korean).   과학기술학회마을
3 S. N. Lee, N. I. Tak, and J. M. Noh, "Heat transfer prediction in pipe flow by the wall function of SST turbulence model," Preceeding of the Korean Society for Computational Fluids Engineering, pp. 355-358, 2013 (in Korean).
4 M. M. El-Gendi, S. W. Lee, and C. H. Son, "On the significance of turbulence models and unsteady effect on the flow prediction through a high pressure turbine cascade," Journal of the Korean Society of Marine Engineering, vol. 35, no. 7. pp. 938-945, 2011. [Online]. Available: http://dx.doi.org/10.5916/jkosme.2011.35.7.938   과학기술학회마을   DOI   ScienceOn
5 N. H. Kim, B. Youn, and R. L. Webb, "Heat transfer and friction correlations for plain fin and tube heat exchangers," Proceedings of 11th The 11th International Heat Transfer Conference, vol. 6, pp. 209-213, 1998.
6 J. W. Yun, J. Y. Yun, and M. Kim, "Numerical study on the characteristics of flow an heat transfer in finned tube heat exchanger," Transactions of the Society of Air-Conditioning and Refrigeration Engineers, vol. 25, no. 2, pp. 137-150, 1996 (in Korean).
7 H. C. Kang, "Fin efficiency of the heat exchanger," Transactions of the Society of Air-Conditioning and Refrigeration Engineers, pp. 1151-1121, 1999 (in Korean).
8 J. H. Lee, M. K. Lim, and H. C. Kang, "Forced convection characteristics of V type circular-finned tube heat exchanger," Proceeding of the Society of Air-Conditioning and Refrigeration Engineers, pp. 1348-1354. 2009 (in Korean).   과학기술학회마을
9 N. H. Kim, J. P. Cho, Y. H. Choi, and H. G. Ku, "Heat transfer and pressure drop characteristics of plain finned heat exchangers having 5.0mm tubes," Transactions of the Society of Air-Conditioning and Refrigeration Engineers, vol. 16, no. 1, pp. 9-14, 2008 (in Korean).
10 H. S. Chang, Y. W. Chun, and I. K. Chung, "Study on performance of plate fin-oval tube heat exchanger with vortex generators," Proceedings of the Korean Society of Mechanical Engineers, pp. 345-350, 2005 (in Korean).   과학기술학회마을
11 D. H. Jin, B. Na, D. Y. Jang, and J. Y. Yun, "Study on the heat transfer and pressure drop characteristics in the plain fin heat exchangers with round tube," Proceeding of the Society of Air-Conditioning and Refrigeration Engineers, pp. 306-309, 1999 (in Korean).
12 J. H. Maeng, M. H. Nam, Y. D. Jun, and K. B. Lee, "Performance test of the heat exchanger in the shape of fins for waste gas heat recovery," Proceeding of the Society of Air-Conditioning and Refrigeration Engineers, vol. 6, pp. 1247-1252, 2010 (in Korean).