THERMAL SCIENCE

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Thundil Karuppa Raj R

,

Srikanth Ganne

SHELL SIDE NUMERICAL ANALYSIS OF A SHELL AND TUBE HEAT EXCHANGER CONSIDERING THE EFFECTS OF BAFFLE INCLINATION ANGLE ON FLUID FLOW USING CFD

ABSTRACT
In this present study, attempts were made to investigate the impacts of various baffle inclination angles on fluid flow and the heat transfer characteristics of a shell-and-tube heat exchanger for three different baffle inclination angles namely 0°,10° and 20°. The simulation results for various shell and tube heat exchangers, one with segmental baffles perpendicular to fluid flow and two with segmental baffles inclined to the direction of fluid flow are compared for their performance. The shell side design has been investigated numerically by modeling a small shell-and-tube heat exchanger. The study is concerned with a single shell and single side pass parallel flow heat exchanger. The flow and temperature fields inside the shell are studied using non-commercial CFD software tool ANSYS CFX 12.1. For a given baffle cut of 36 %, the heat exchanger performance is investigated by varying mass flow rate and baffle inclination angle. From the CFD simulation results, the shell side outlet temperature, pressure drop, recirculation near the baffles, optimal mass flow rate and the optimum baffle inclination angle for the given heat exchanger geometry are determined.
KEYWORDS
shell and tube heat exchanger, CFD, conjugate heat transfer, pressure drop, baffle inclination angle
PAPER SUBMITTED: 2011-03-30
PAPER REVISED: 2011-08-07
PAPER ACCEPTED: 2011-08-30
DOI REFERENCE: https://doi.org/10.2298/TSCI110330118R
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Issue 4, PAGES [1165 - 1174]
REFERENCES
  1. Gaddis, D., editor. Standards of the Tubular Exchanger Manufacturers Association, ninth ed, Tarrytown (NY): TEMA Inc, 2007.
  2. Schlunder, E.V, Heat Exchanger Design Handbook, Hemisphere Publishing Corp., New York, Bureau of Energy Efficiency, 1983.
  3. Mukherjee, R., Practical Thermal Design of Shell-and-Tube Heat Exchangers, Begell House.Inc, New York, 2004.
  4. Ender Ozden, Ilker Tari, Shell side CFD analysis of a small shell-and-tube heat exchanger, Energy Conversion and Management 51 (2010), pp. 1004 - 1014.
  5. Uday Kapale, C., Satish Chand, Modeling for shell-side pressure drop for liquid flow in shell-and-tube heat exchanger, International Journal of Heat and Mass Transfer 49 (2006), pp. 601-610
  6. Thirumarimurugan, M., Kannadasan, T., Ramasamy, E., Performance Analysis of Shell and Tube Heat Exchanger Using Miscible System, American Journal of Applied Sciences 5 (2008), pp. 548-552.
  7. Sparrows, E. M., Reifschneider, L. G., Effect of inter baffle spacing on heat transfer and pressure drop in a shell-and-tube heat exchanger, International Journal of Heat and Mass Transfer 29 (1986), pp. 1617-1628.
  8. Li, H., Kottke, V., Effect of baffle spacing on pressure drop and local heat transfer in shelland- tube heat exchangers for staggered tube arrangement, Int. J. Heat Mass Transfer 41 (1998), 10, pp. 1303-1311
  9. Su Thet Mon Than, Khin Aung Lin, Mi Sandar Mon, Heat Exchanger Design, World Academy of Science, Engineering and Technology 46, 2008.
  10. Kakac, S., Liu, H., Heat Exchangers Selection, Rating and Thermal Design, CRC press, second ed, Washington D.C., 2002, pp. 318-335
  11. Gay, B., Mackley, N.V., Jenkins, J. D., Shell-side heat transfer in baffled cylindrical shell and tube exchangers, Int. J. Heat Mass Transfer 19 (1976), pp. 995-1002.
  12. Emerson, W.H., Shell-side pressure drop and heat transfer with turbulent flow in segmentally baffled shell-tube heat exchangers, Int. J. Heat Mass Transfer 6 (1963), pp. 649-668.
  13. Yong-Gang Lei, Ya-Ling He, Rui Li, Ya-Fu Gao, Effects of baffle inclination angle on flow and heat transfer of a heat exchanger with helical baffles, Chemical Engineering and Processing 47 (2008), pp. 2336-2345.
  14. Versteeg, H.K., Malalasekera, W., An introduction to computational fluid dynamics: the finite volume method, first ed, Essex (England): Pearson, 1995.
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Shell side numerical analysis of a shell and tube heat exchanger considering the effects of baffle inclination angle on fluid flow using CFD

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence