In generating high electroosmotic flows for use in microfluidic pumps, a limiting factor is faradaic reactions which appear at high electric fields. These reactions lead to higher power consumption and bubble generation at the electrodes. We are proposing a novel technique that can limit and even prevent gas generation. This will extend the current range of operation of electroosmotic pumps. This is achieved by applying a unidirectional pulsed DC voltage waveform. The optimum pulse voltage waveform (OPW) tested is based on a theoretical model developed by the authors [1]. The power consumed and the efficiency of an electroosmotic pump under the pulsed DC voltage is measured experimentally and compared with the conventional bipolar rectangular voltage waveform (BRW). Results show an increase in the efficiency for the OPW when compared to the BRW. This increase in efficiency is obtained by preventing the reverse cycle in the BRW which flows against the pumping direction.
Skip Nav Destination
ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
July 26–31, 2015
Seoul, South Korea
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5722-9
PROCEEDINGS PAPER
Bubble Free High Efficiency Electroosmotic Pumps Available to Purchase
Mena E. Tawfik,
Mena E. Tawfik
Rutgers University, Piscataway, NJ
Search for other works by this author on:
Thomas E. Hansen,
Thomas E. Hansen
Rutgers University, Piscataway, NJ
Search for other works by this author on:
F. J. Diez
F. J. Diez
Rutgers University, Piscataway, NJ
Search for other works by this author on:
Mena E. Tawfik
Rutgers University, Piscataway, NJ
Thomas E. Hansen
Rutgers University, Piscataway, NJ
F. J. Diez
Rutgers University, Piscataway, NJ
Paper No:
AJKFluids2015-34695, V002T34A007; 6 pages
Published Online:
November 20, 2015
Citation
Tawfik, ME, Hansen, TE, & Diez, FJ. "Bubble Free High Efficiency Electroosmotic Pumps." Proceedings of the ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. Volume 2: Fora. Seoul, South Korea. July 26–31, 2015. V002T34A007. ASME. https://doi.org/10.1115/AJKFluids2015-34695
Download citation file:
18
Views
Related Proceedings Papers
Related Articles
Numerical Study of Dielectric Fluid Bubble Behavior Within Diverging External Electric Fields
J. Heat Transfer (March,2008)
Electrokinetic-Driven Flow and Heat Transfer of a Non-Newtonian Fluid in a Circular Microchannel
J. Heat Transfer (February,2013)
Scalable Electro-Osmotic Thruster for Stealthy, Extreme Condition Underwater Propulsion
J. Offshore Mech. Arct. Eng (February,2020)
Related Chapters
Shape Oscillation of an Encapsulated Bubble in Electric Fields
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Towards Real-Time Optical Measurement of Microbubble Content in Hydrodynamic Test Facilities
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Single Oscillating Bubble from Radiofrequency Fiber Electrode
Proceedings of the 10th International Symposium on Cavitation (CAV2018)