NDLI: Effect of Side and Tip Gaps of a Piezoelectric Fan on Microelectronic Cooling

Content Provider	IEEE Xplore Digital Library
Author	Sufian, S.F. Abdullah, M.Z. Abdullah, M.K. Mohamed, J.J.
Copyright Year	2011
Abstract	A combination of experimental and numerical analyses is conducted to investigate the coupled effect of side gap (Gs) and tip gap (δ) on the performance of a piezoelectric fan in microelectronic cooling. Two parallel adjustable walls are set at the fan sides to facilitate the variation of Gs. The piezoelectric fan is oriented vertically to the heat source (chip). A 3-D simulation using FLUENT 6.3.2 is performed to assess the transient flow and the resulting heat transfer from the chip. The coupled effect of Gs and δ on the fan tip deflection is detected by a laser displacement sensor (KEYENCE LK-G152). Both Gs and δ had noticeable effects on the flow behavior and Re. The effect of δ is more significant on the heat-transfer coefficient than that of Gs. The flow profiles and the temperature contours are found to be consistent with each other, and the predictions are in good agreement with the experimental results. The piezoelectric fan enhances the heat-transfer coefficient 1.95 to 2.7 times, corresponding to the best and worst cases, respectively.
Starting Page	1545
Ending Page	1553
Page Count	9
File Size	1036350
File Format	PDF
ISSN	21563950
Volume Number	3
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	tip gap Enter electronic cooling fluent heat-transfer coefficient piezoelectric fan side gap
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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