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Experimental study on pressure pulsation in piezo driven reed valve pump

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Abstract

In this study, we designed a reed valve pump using a piezoelectric device (PZT) as a power source and analyzed its performance. Numerical analysis and preliminary design were carried out in order to construct a pump chamber, and a valve port design was used so as to take advantage of the characteristics of a reed valve. The performance of the manufactured pump was investigated with glycerin solution, a working fluid. As expected, the flow rate of the pump increased with operating frequency as long as sufficient pressure relaxation could be given. From the measured results of the time resolved pressure, the maximum and minimum pressures were determined by the pressure relaxation. The investigation about the duty ratio of the square wave operation probed that the 50 % duty provided the maximum performance, and the duty ratio could be reduced at a high operating frequency without a performance reduction.

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Authors and Affiliations

  1. School of Mechanical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, 16419, Korea

    Jangmi Woo, Dong Kee Sohn & Han Seo Ko

Authors
  1. Jangmi Woo
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  2. Dong Kee Sohn
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  3. Han Seo Ko
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Corresponding author

Correspondence to Dong Kee Sohn.

Additional information

Recommended by Associate Editor Simon Song

Jangmi Woo is a graduate student in the School of Mechanical Engineering, Sungkyunkwan University. Her research interests are computational fluid dynamics (CFD) in mechanical system, flow visualization technique, microfludics and numerical heat transfer.

Dong Kee Sohn is a Research Professor at the School of Mechanical Engineering, Sungkyunkwan University. He received his Ph.D. in Mechanical Engineering from Seoul National University in 1997. His research interests include experiments for heat and fluid system.

Han Seo Ko is a Professor in the School of Mechanical Engineering, Sungkyunkwan University. He received his Ph.D. in Mechanical Engineering in 1998 from Texas A&M University. His research interests are flow control, microfluidics, optical tomography, micro-droplet ejection and heat and mass control.

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Woo, J., Sohn, D.K. & Ko, H.S. Experimental study on pressure pulsation in piezo driven reed valve pump. J Mech Sci Technol 33, 661–667 (2019). https://doi.org/10.1007/s12206-019-0121-8

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  • DOI: https://doi.org/10.1007/s12206-019-0121-8

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