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Impingement Cooling in a Simulated Data Center Servers With an Array of Elliptic Air Jets

[+] Author Affiliations
Sheng-Kai Chang, Lo Yuan-Hsiang, Yao-Hsien Liu

National Chiao-Tung University, Hsinchu, Taiwan

Paper No. ICNMM2015-48588, pp. V001T07A010; 6 pages
doi:10.1115/ICNMM2015-48588
From:
  • ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems
  • ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels
  • San Francisco, California, USA, July 6–9, 2015
  • Conference Sponsors: Heat Transfer Division, Fluids Engineering Division
  • ISBN: 978-0-7918-5687-1
  • Copyright © 2015 by ASME

abstract

Reducing the electricity consumption from the cooling systems in a data center can cut the energy cost. The development of the high efficiency cooling schemes can effectively save more energy from the computer room air conditioning (CRAC) system. Impingement cooling with air jets can achieve high heat transfer rates and could be used to cool local hot spots in the cabinets. A 5 × 5 jet array was designed utilizing circular and elliptic holes. The cross sectional area of the test region was 250 mm × 25 mm. The jet Reynolds numbers is 3300. Heat transfer coefficients on the target surface were investigated. Results indicated that the impingement cooling provided lower surface temperature than the traditional fan cooling.

Copyright © 2015 by ASME

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