Browse > Article
http://dx.doi.org/10.6110/KJACR.2012.24.8.621

A Numerical Study on the Heat Transfer Performance of Single-Tube Annular Baffle System  

Hong, Jeong-Ah (Dept. of Mechanical Engineering, Kongju National University)
Jun, Yong-Du (Dept. of Mechanical Engineering, Kongju National University)
Lee, Kum-Bae (Dept. of Mechanical Engineering, Kongju National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.24, no.8, 2012 , pp. 621-626 More about this Journal
Abstract
A new baffle configuration, an annular baffles, are considered in the present study as an alternative to reduce the excessive pressure drop associated with the conventional segmental ones in typical operating conditions. The heat transfer and pressure drops are numerically simulated for a single tube shell-and-tube model and compared against the conventional-baffle cases. Baffle blockage ratio and number of baffles are considered as the major variables for the present study specifying a fixed baffle spacing. It is found that the heat transfer increases 1.4~2.2 times without significant pressure loss compared to the bare tube cases and the goodness factor increases 1.35 times compared to the conventional-baffle model.
Keywords
Shell-tube heat exchanger; Annular baffle; Blockage ratio;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Maeng, J. H., Koo, B. S., Jun, Y. D., and Lee, K. B., 2011, Performance analysis of fin-tube heat exchangers with various fin shapes for waste gas heat recovery, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 23, No. 9, pp. 627-632.   과학기술학회마을   DOI
2 Kang, H. C. and Kang, M. C., 2004, Forced convection correlation for single circular fintube heat exchanger, Korean Journal of Air- Conditioning and Refrigeration Engineering, Vol. 16, No. 6, pp. 584-588.
3 Oh, G. N., Jun, Y. D., and Lee, K. B., 2010, Research of heat transfer characteristics with baffle parameters in shell and tube heat exchanger, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 22, No. 9, pp. 599-604.   과학기술학회마을
4 Hong, J. A., Lee, K. B., and Jun, Y. D., 2011, Numerical experiments on the heat transfer performance of annular baffles, Proceedings of 2011 Annual Winter Conference, Society of Air-Conditioning and Refrigerating Engineers of Korea, pp. 237-242.
5 Kern, D. Q., 1950, Process heat transfer international student edition, McGraw-Hill Kogakusha, Ltd., pp. 129-131.
6 ANSYS CFX-Solver Theory Guide, ANSYS.