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An Experimental Study on the Pumping Characteristics of Diffuser/Nozzle Based Piezoelectric Micropumps with Different Geometries and Operating Conditions  

Yong, Jung-Kwon (Department of Mechanical Engineering, Kyunghee University)
Kim, Chang-Nyung (College of Advanced Technology, Kyunghee University)
Kim, Chin-Uck (Department of Mechanical Engineering, Kyunghee University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.21, no.1, 2009 , pp. 33-40 More about this Journal
Abstract
In the present experimental study, the pumping performances of diffuser/nozzle based piezoelectric micropumps are estimated with different operating factors and geometries. Here, the effects of the input voltage and frequency on the pumping performances have been examined together with the influences of the positions of the inlet and outlet. The results show that the flow rate of the micropump is larger with larger input voltage with the largest flow rates for the frequency to be close to 6.0 Hz all through the current experimental study. Also, it has been found that the positions of the inlet and outlet affect much on the performance of the piezoelectric micropumps. Error estimation has been carried out for the evaluation of the pumping performance in association with the uncertainty of the measurement.
Keywords
Difffuser/nozzle; Micropump; Piezoeletric;
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  • Reference
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