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Pressure Drop Over MEMS-Based Micro Scale Pin Fin Heat Sinks

[+] Author Affiliations
Yoav Peles, Ali Koşar, Chandan Mishra, Chih-Jung Kuo, Brandon Schneider

Rensselaer Polytechnic Institute, Troy, NY

Paper No. ICMM2005-75156, pp. 223-229; 7 pages
  • ASME 3rd International Conference on Microchannels and Minichannels
  • ASME 3rd International Conference on Microchannels and Minichannels, Part B cont’d
  • Toronto, Ontario, Canada, June 13–15, 2005
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4185-5 | eISBN: 0-7918-3758-0
  • Copyright © 2005 by ASME


Pressure drops and friction factors related to forced flow of de-ionized water over staggered/ in-line micro pin fin bundles (100-μm long, with hydraulic diameter of 50-μm and 100-μm, and with horizontal and vertical pitch ratios 1.5 and 5) possessing different cross-sections (circular/ diamond) have been experimentally investigated over Reynolds numbers ranging between 5–128. The applicability of conventional scale correlations to evaluate micro flow tests results has been assessed. It has been shown that available large-scale correlations do not adequately predict the pressure drop obtained at the micro scale.

Copyright © 2005 by ASME



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