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http://dx.doi.org/10.3795/KSME-B.2006.30.12.1173

Experimental Study on the Thermal Performance of Piezoelectric Fan in an Enclosure  

Park, Sang-Hee (금오공과대학교 기계공학부)
Choi, Moon-Chul (금오공과대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.30, no.12, 2006 , pp. 1173-1180 More about this Journal
Abstract
This study deals with fluid flow and heat transfer around a module cooled by forced air flow generated by a piezoelectric(PZT) fan in an enclosure. The fluid flows were generated by a flexible PZT fan which deflects inside a fluid transport system of comparatively simple structure mounted on a PCB in an enclosure($270\times260\times90mm^3$). Input voltages of 30V and 40V, and a resonance frequency of 28Hz were used to vibrate the cooling fan. Input power to the module was 4W. The height in an enclosure was changed 23$\sim$43mm. The fluid flow around the module was visualized by using PIV system. The temperature distributions around a heated module were visualized by using liquid crystal film. As the height in an enclosure and the input voltage of PZT fan increased, the cooling effect of module using a PZT fan increased. We found that the flow type was T- or Y-shape and the cooling effect was increased by the wake generated by a PZT fan.
Keywords
Piezoelectric Fan; Module; PIV; Flow Visualization; Thermal Wake Function;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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