Monday, November 23, 2009

Air flow to charge your car battery

Research by group of scientists at City College, New York have invented a device that uses air flow entering your car to generate electricity. The electricity will be used to charge your car battery. The same technology is being tested for airplanes. The device is half by one inch in size and can be mounted on roof or tail of the car. The air flow will cause resonance in the device making piezoelectric material to release electrons.

What is piezoelectricity?
Piezoelectricity is the ability of some materials (notably crystals and certain ceramics, including bone) to generate an electric field or electric potential in response to applied mechanical stress. The effect is closely related to a change of polarization density within the material's volume. If the material is not short-circuited, the applied stress induces a voltage across the material. The word is derived from the Greek piezo or piezein, which means to squeeze or press. (Source: Wikipedia)

No comments:

Post a Comment