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http://dx.doi.org/10.9726/kspse.2014.18.1.014

Heat Transfer Enhancement of a Piezoelectric Fan for Cooling of Electronic Devices  

Kim, Eun-Pil (Department of Refrigeration And Air-Conditioning Engineering, Pukyong National University)
Yoon, Jung-In (Department of Refrigeration And Air-Conditioning Engineering, Pukyong National University)
Publication Information
Journal of Power System Engineering / v.18, no.1, 2014 , pp. 14-21 More about this Journal
Abstract
Piezoelectric fans are thin elastic beams whose vibratory motion is actuated by means of a piezoelectric material bonded to the beam. These fans have found use as a means to enhance convective heat transfer while requiring only small amounts of power. This study presents new types of models with heat sink having air passage and investigates experimentally their heat transfer characteristics. From the comparison results for four models, the heat transfer coefficients of model 1 are approximately 44~66% higher than those of the reference model 0. The model 1 show the best overall performance about heat transfer and cooling capability. As shown in above results, it is necessary to design the heat sink with air pass for cooling of electronic devices, in order to increase the convective heat transfer coefficient of a piezoelectric fan for electronic cooling.
Keywords
Electronic Cooling; Heat Transfer Coefficient; Heat Transfer Enhancement; Piezoelectric Fan;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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