Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-23T15:32:11.776Z Has data issue: false hasContentIssue false
  • English
  • Français

Design and Characterization of Valveless Impedance Pumps

Published online by Cambridge University Press:  05 May 2011

C.-Y. Wen  and
H.-T. Chang
C.-Y. Wen*
Affiliation:
Department of Aeronautics and Astronautics, National Cheng-Kung University, Tainan City, Taiwan 70101, R.O.C.
H.-T. Chang*
Affiliation:
Department of Aeronautics and Astronautics, National Cheng-Kung University, Tainan City, Taiwan 70101, R.O.C.
*
*Professor
**Post Doctor, corresponding author
Get access

Abstract

This study designs, fabricates and characterizes three valveless impedance pumps, namely a symmetrical pump with a circular cross-section, an asymmetrical pump with a circular cross-section, and an asymmetrical pump with a rectangular cross-section. The pressure head and flow rate characteristics of the three pumps are investigated as a function of the compression location, the compression frequency and the compression amplitude. The experimental results show that the flow is reversible in every case. Moreover, the pressure head is found to be significantly dependent on the actuating frequency, the compression location and the compression amplitude. However, no pressure head is produced when the pinching effect is applied at the center of channel configuration for the symmetrical pump. In the symmetrical pump, a maximum pressure head of 590mm is obtained at a frequency of 26Hz, and results in a flow rate of 0.581/min in the positive direction (i.e. from the left-hand reservoir of the pump to the righthand reservoir). Meanwhile, in the asymmetrical pumps with circular and rectangular cross-sections, respectively, maximum pressure heads of −620mm and −570mm are developed at frequencies of 36Hz and 32Hz, respectively. The corresponding flow rates are determined to be 0.641/min and 0.531/min, respectively. In both cases, the fluid moves in the negative direction (i.e. from the right-hand reservoir of the pump to the left-hand reservoir). Overall, the valveless impedance pumps developed in this study generate a high pumping rate, are easily fabricated and have no moving mechanical valves. As a result, they are eminently suitable for pumping applications in such diverse systems as biomedical devices, fuel cells, PC cooling systems, and so forth.

Keywords

Liebau phenomenonValveless impedance pumpAsymmetric compressionWave propagation.
Type
Articles
Information
Journal of Mechanics , Volume 25 , Issue 4 , December 2009 , pp. 345 - 354
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2009

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

REFERENCES

1.Mackay, R. C., “The Pratical Pumping Handbook,” Mc Graw-Hill, New York (2001).Google Scholar
2.Sanks, R. L. and George, T. L., Pumping Station Design, 2nd Ed., Mc Graw-Hill, New York (1998).Google Scholar
3.Zengerle, R., Ulrich, J., Kluge, S., Richter, M. and Richter, A., “A Bidirectional Silicon Micropump,” Sensors and Actuators A, 50, pp. 81–86 (1995).Google Scholar
4.Gong, Q. L., Zhou, Z. Y., Yang, Y. H. and Wang, X. H., “Design, Optimization and Simulation on Microelectromagnetic Pump,” Sensors and Actuators A, 83, pp. 200–207 (2000).CrossRefGoogle Scholar
5.Andersson, H., van der Wijngaart, W., Nilsson, P., Enoksson, P. and Stemme, G., “A Valve-Less Diffuser Micropump for Microfuidic Analytical Systems,” Sensors and Actuators B, 72, pp. 259–265 (2001).CrossRefGoogle Scholar
6.Schabmueller, C. G. J., Koch, M., Mokhtari, M. E., Evans, A. G. R., Brunnschweiler, A. and Sehr, H., “Self-Aligning Gas/Liquid Micropump,” J. Micromechanics and Microengineering, 12, pp. 420–424 (2002).CrossRefGoogle Scholar
7.Rinderknecht, D., Hickerson, A. I. and Gharib, M., “A Valveless Micro Impedance Pump Driven by Electromagnetic Actuation,” J. Micromechanics and Microengineering, 15, pp. 861–866 (2005).CrossRefGoogle Scholar
8.Wen, C. Y., Cheng, C. H., Jian, C. N., Nguyen, T. A., Hsu, C.Y. and Su, Y. R., “A Valveless Micro Impedance Pump Driven by PZT Actuation,” Materials Science Forum, 505–507, pp. 127–132 (2006).CrossRefGoogle Scholar
9.Lee, C. Y., Chang, H. T. and Wen, C. Y., “A MEMS based Valveless Impedance Pump Utilizing Electromagnetic Actuation,” J. Micromechanics and Microengineering, 18, p. 9 (2008).Google Scholar
10.Moser, M., Huang, J. W., Schwarz, G. S., Kenner, T. and Noordergraaf, A., “Impedance Defined Flow: Generalization of William Harvey's Concept of the Circulation - 370 Years Later,” International Journal of Cardiovascular Medicine and Science, 1, pp. 205–211 (1998).Google Scholar
11.Liebau, G., “Uber Ein Ventilloses Pumpprinzip,” Naturwissenschaften, 41, p. 327 (1954).CrossRefGoogle Scholar
12.Liebau, G., “Die Stromungsprinzipien Des Herzens,” Z. Kreislaufforsch, 44, pp. 677–684 (1955).Google Scholar
13.Rath, H. and Teipel, I., “Der Fordereffekt in Ventillosen, Elastischen Leitungen,” Zeitschrift fr angewandte Mathematik und Physik, 29, pp. 123–133 (1978).CrossRefGoogle Scholar
14.Zhang, Y., Reese, J., Gorman, D. and Madhok, R., “The Vibration of an Artery-Like Tube Conveying Pulsatile Fluid Flow,” Proceeding of the Institution of Mechanical Engineers Part H—Journal of Engineering in Medicine, 216, pp. 1–11 (2002).Google Scholar
15.Ottesen, J., “Valveless Pumping in a Fluid-Filled Closed Elastic Tube-System: One-Dimensional Theory with Experimental Validation,” Journal of Mathematical Biology, 46, pp. 309–332 (2003).CrossRefGoogle Scholar
16.Auerbach, D., Moehring, W. and Moser, M., “An Analytical Approach to the Liebau Problem of Valveless Pumping,” Cardiovascular Engineering: An International Journal, 4, pp. 201–207 (2004).CrossRefGoogle Scholar
17.Kenner, T., “Biological Asymmetry and Cardiovascular Blood Transport,” Cardiovascular Engineering: An International Journal, 4, pp. 209–217 (2004).Google Scholar
18.Borzi, A. and Propst, G., “Numerical Investigation of the Liebau Phenomenon,” Zeitschrift fur Angewandte Mathematik und Physik, 54, pp. 1050–1072 (2003).CrossRefGoogle Scholar
19.Jung, E. and Peskin, C., “2-D Simulations of Valveless Pumping Using Immersed Boundary Methods,” SIAM Journal on Scientific Computing, 23, pp. 19–45 (2001).Google Scholar
20.Ottensen, J., “Valveless Pumping in a Fluid-Filled Closed Elastic Tube System: One Dimensional Theory with Experimental Validation,” Journal of Mathematical Biological, 46, pp. 309–332 (2003).CrossRefGoogle Scholar
21.Hickerson, A. I., Rinderknecht, D. and Ghrib, M., “Experimental Study of the Behaviors of a Valveless Impedance Pump,” Experiments in Fluids, 38, pp. 535–540 (2005).Google Scholar
22.Hickerson, A. I., “An Experimental Analysis of the Characteristic Behaviors of an Impedance Pump,” Ph.D. Dissertation, California Institute of Technology, California (2005).Google Scholar