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Air Pump

Welcome to the homepage of Electrostatic Fluid Acceleration


News
8.10.2006
SEAL EFA project featured in 'Washington Engineer' newsletter
The University of Washington College of Engineering's electronic newsletter published three times a year, 'Washington Engineer', recently featured a story on the exciting work done by our lab with EFA's. The full article is available at: Washington Engineer: Beating the Heat

6.13.2006
Washington Technology Center Grant In The News
News continues to circulate surrounding the Washington Technology Center (WTC) grant which will provide continued funding for EFA research at the University of Washington and Kronos Air Technologies. PRIMEZONE ran a recent article, Kronos and University of Washington Awarded Second Grant for Developing Cooling Technology for Microelectronics and Computer Chips, reporting the details.

Summary
Classic rotary fans have been used for forced convection cooling over the last few decades and are still used to enable the final heat exchange with the ambient. The classical rotary structural geometry, although used in numerous applications, is limited in both scale and design flexibility, due to the necessity of high-speed rotating parts. Turbulent flow, vibration, and gyroscopic forces introduce inherent inefficiency and noise to a rotary system. Even in the applications for which acoustic noise and vibrations do not present a significant problem, rotary fans are difficult to optimize for more than a single air flow circulation pattern, due to their nearly static cross-sectional air velocity profile. Electrostatic fluid accelerators (EFAs) offer nearly laminar air propulsion with dynamic airflow profiles, controllable air velocities, and a possibility to decrease the effective boundary layer at the solid-fluid interface. In addition, EFA propulsion is achieved without moving mechanical parts, thus enabling flexible design and possible integration at the MEMS level.















Sensors, Energy, and Automation Laboratory
@
The University of Washington

      
'Next Generation Micro-Cooling Research'