Date post: | 13-Jul-2015 |
Category: |
Science |
Upload: | kush-sharma |
View: | 241 times |
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We humans love electricity
On average, a human body consumes about 3,300 watt-hours of energy every day.
But has the potential to produce more than 3 times that amount.
7200 terawatt hour, Energy Consumption of India only in 2008. [1 terawatt = 1 Billion kilowatt]
Early Visions of Power
Benjamin Franklin, Kite lover
Thomas Alva Edison, Direct Current and Bulb lover
Nikola Tesla, Death Ray [Actually known as “Wardenclyffe Tower”]
To fulfill our electricity needs
Batteries
Tower Grid
Lots and Lots of Wires
40 Billion Disposable batteries/year
Even if all the batteries collectively charged together, it won’t last more than 10 minutes to fill world energy consumption.
Bad !!
Bad !!
Bad !!
Lets discuss Piezoelectricity
• We know how to use electricity but from where we going to get it ?
• Some things only works when they are hit on! (My College computers)
• Piezoelectric materials too.
• The first demonstration of the direct piezoelectric effect was in 1880 by the brothers Pierre Curie and Jacques Curie
How it works
• Remember everything in this world is built with nothing but atoms?
• But here, when enough pressure is applied, it breaks this structure and separates electrons and protons on either side.
• Inter-separated state of electrons and protons attract each other (just like : battery) and produces electricity.
Inside Piezo Material
Properties
• Available in abundant quantity.
• Quartz demonstrates this property and is extremely stable.
• The converse of this effect is also, the elongation of such crystals upon the application of an electric current.
Where can we use it ?
• Dance Floors !
• Your own cell Phone !
• Footpaths !
• Shoes !
• Almost anything which is in motion.
Applications
Cars that recharge themselves.
Cellphones start charging as soon as you keep them on table.
• Everyday life
• Medical Internal implants of machines inside human body.
• Mechanical Where using wires is a bad choice.
Robotics.
• Extraction Generating energy from sources which was not explored before. Until now !