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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2567
DTSTART:20120214T180500Z
DURATION:PT1H0M0S
DTSTAMP:20260412T150223Z
LAST-MODIFIED:20120123T151829Z
LOCATION:4274 Chamberlin
SUMMARY:Energy harvesting for mobile electronics\, Chaos & Complex Sys
 tems Seminar\, Ashley Taylor\, UW Department of Mechanical Engineering
DESCRIPTION:Energy harvesting is a very old idea arguably going back t
 o the invention of the windmill\, sail\, and waterwheel.  More recentl
 y efforts have been focused on ways to convert environmental energy in
 to electrical power. Many types of energy harvesters exist covering a 
 very broad range of applications from large scale power generators to 
 portable power sources for mobile devices and sensors.  The harvesting
  of environmental mechanical energy is particularly promising for port
 able applications by using such high-power sources as human  locomotio
 n\, but currently its use is substantially limited by  low power outpu
 t of energy converters.  Existing methods of mechanical-to-electrical 
 energy conversion such as electromagnetic\, piezoelectric\, or electro
 static are not well suited for effective direct coupling to the majori
 ty of high-power environmental mechanical energy sources suitable for 
 portable applications\, thus their energy output remains in the microw
 att to hundreds of milliwatt range. However with the rapid growth of m
 obile devices the demand for power sources producing watts or tens of 
 watts has acutely increased. To bridge this gap we have developed a ra
 dically new mechanical-to-electrical energy conversion method which is
  based on reverse electrowetting aEuro&quot\; a novel microfluidic phe
 nomenon. Energy generation is achieved through the interaction of arra
 ys of moving microscopic liquid droplets with a novel multilayer thin 
 film. We believe that this approach has a number of significant advant
 ages over existing mechanical energy harvesting technologies. 
URL:https://www.physics.wisc.edu/events/?id=2567
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