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Numerical and Experimental Study of Pin-Fin Array Heat Exchangers

[+] Author Affiliations
Leonard J. Hamilton, Ashok Gopinath

Naval Postgraduate School, Monterey, CA

Paper No. IMECE2003-55453, pp. 175-176; 2 pages
doi:10.1115/IMECE2003-55453
From:
  • ASME 2003 International Mechanical Engineering Congress and Exposition
  • Process Industries
  • Washington, DC, USA, November 15–21, 2003
  • Conference Sponsors: Process Industries Division
  • ISBN: 0-7918-3725-4 | eISBN: 0-7918-4663-6, 0-7918-4664-4, 0-7918-4665-2
  • Copyright © 2003 by ASME

abstract

The performance characteristics of a staggered short pin-fin array heat exchanger (Figure 3) were analyzed numerically and experimentally. The numerical simulation formed the primary thrust of the study and a three-dimensional finite element model based on the commercial FEA package ANSYS was used. The simulation was validated against historical empirical data in the literature, as well as against data obtained from a modular experimental rig that was designed to allow different configurations to be easily swapped and studied. Compared to the experimental data, the numerical model provided very accurate heat transfer predictions (Figure 2), but overestimated the pressure drop values for some configurations. The discrepancy was greatest for cases where the pin-fins made up a large fraction of the total heat exchanger array volume.

Copyright © 2003 by ASME
Topics: Heat exchangers

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