Ultra Thin Fan Cools by Piezoelectric Energy

Dec-16-12 A new piezoelectric cooling device from GE, called a DCJ, cools surfaces by vibrating rapidly—and could replace the power-hungry fans currently used in laptops.

The device is made up of two flat plates that contract and expand at a hundred times a second when exposed to electricity. The plates draw in cool air as they expand and force the air out of the front when they contract, working almost silently and using about the half the power of conventional fans. The DCJ is also 50 percent smaller than current fans, while still moving the same amount of air, and can be scaled to a variety of applications.

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[EXTREMETECH.COM]

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