Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-25T05:50:45.341Z Has data issue: false hasContentIssue false
  • English
  • Français

Micro-Droplets Atomizer Using PZT Ring Actuator

Published online by Cambridge University Press:  05 May 2011

Y.-L. Huang  and
S.-H. Chang
Y.-L. Huang*
Affiliation:
Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C. Laboratoire des Ecoulements Géophysiques et Industriels, University of Joseph Fourier, Domaine Universitaire, BP 53, 38041 Grenoble, cedex 9, France
S.-H. Chang*
Affiliation:
Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
*
*Ph.D.
**Professor, corresponding author
Get access

Abstract

This paper presents the ultrasonic atomizer composed of the lead zirconate titanate (PZT) ring actuator and the Ni nozzle plate with numerous minute nozzles. The atomizer operates at its resonant frequency in out-of-plane vibration. De-ionized (DI) water is fed by the open trough to the porous sponge that is in contact with one face of the nozzle plate and it is ejected through nozzles. Micro-droplets are formed at the opposite face of the nozzle plate. The resonance frequencies of the PZT ring are investigated and compared in theoretical analysis, three-dimensional (3-D) finite-element models (FEM) numerical simulation, and experimental measurement. The performance of the atomizer is examined. This ring shape design of ultrasonic atomizer demonstrates advantage of high atomization rate (64.3ml/min) and high atomization efficiency (l,007ml/h/W) at low power consumption (8.244W).

Keywords

Ultrasonic atomizerDroplet ejectionPZT actuatorMode shapeSpray.
Type
Articles
Information
Journal of Mechanics , Volume 26 , Issue 3 , September 2010 , pp. 423 - 429
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Lang, R. J, “Ultrasonic Atomization of Liquids,” Journal of the Acoustical Society of America, 34, pp. 6–8 (1962).Google Scholar
2.Perron, R. R., “The Design and Application of a Reliable Ultrasonic Atomizer,” IEEE Transaction Sonics and Ultrasonics, su–14, pp. 149–153 (1967).Google Scholar
3.Maehara, N., Ueha, S. and Mori, E., “Influence of the Vibrating System of a Multipinhole-plate Ultrasonic Nebulizer on Its Performance,” Reviews Sciences Instrumentation, 57, pp. 2870–2876 (1986).Google Scholar
4.Soth, J. M. and Klemm, J. R., Ultrasonic Spray Nozzle and Method (1978).Google Scholar
5.Perçin, G. and Khuri-Yakub, B., “Piezoelectrically Actuated Flextensional Micromachined Ultrasound Transducers. I. Theory,” IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency, 49, pp. 573–584 (2002).Google Scholar
6.Percin, G. and Khuri-Yakub, B. T., “Piezoelectric Droplet Ejector for Ink-jet Printing of Fluids and Solid Particles,” Reviews Sciences Instrumentation, 74, pp. 1120–1127 (2003).Google Scholar
7.Lam, K. H., Chan, H. L. W., Luo, H. S., Yin, Q. R and Yin, Z., “Piezoelectrically Actuated Ejector Using PMNPT Single Crystal,” Sensors and Actuators A, 121, pp. 197–202 (2005).Google Scholar
8.Tsai, S., Song, Y., Tseng, T., Chou, Y., Chen, B. and Tsai, C, “High-frequency, Silicon-based Ultrasonic Nozzles Using Multiple Fourier Horns,” IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency, 51, pp. 277–285 (2004).Google Scholar
9.Tsai, S. C, Song, Y. L., Tsai, C. S., Chou, Y. F. and Cheng, C. H., “Ultrasonic Atomization Using mHz Silicon-based Uultiple-Fourier Horn Nozzles,” Applied Physics Letters, 88, pp. 014–102 (2006).Google Scholar
10.Perçin, G., Levin, L. and Khuri-Yakub, B., “Piezoelectrically Actuated Droplet Ejector,” Reviews Sciences Instrumentation, 68, pp. 4561–4563 (1997).CrossRefGoogle Scholar
11.Toda, K. and Ishii, J., “Operation Performance of Self-Oscillation Ultrasonic Vibrating Device for Liquid Atomization,” Japan Journal of Applied Physics, 34, pp. 5332–5334 (1995).CrossRefGoogle Scholar
12. ABAQUS, Inc., ABAQUS Theory Manual, (2002).Google Scholar
13.Kwak, M. K., “Vibration of Circular Membranes in Contact with Water,” Journal of Sound and Vibration, 178, pp. 688–690 (1994).CrossRefGoogle Scholar
14.Tiersten, H. F., Linear Piezoelectric Plate Vibrations Plenum New York (1969).Google Scholar
15. IEEE Standard on Piezoelectricity (1987).Google Scholar