16-05-2013, 03:03 PM
Piezoelectric roads
Piezoelectric roads.pptx (Size: 1.54 MB / Downloads: 93)
Electricity –Supply & Demand
Electricity is a basic need for everyone
But electricity reaches only 65% of the entire population and rest 35% still live in darkness in India
That 65% population also doesn't get continuous power supply and we still face power cuts
To satisfy all the needs we need to produce 81,08,76,150 MW·h/yr
Whereas ,the production is only 60,06,49,000 MW·h/yr
So we need 210227150 MW·h/yr , to reach the demand.
We need to think of an alternative to solve this crisis
Presently there are many alternatives like solar , wind , tidal etc..
All these years we have ignored a better alternative which is right under our feet ….“THE PIEZOELECTRIC ROAD“
PIEZOELECTRICITY- History
Piezoelectricity, discovered by Curie brothers in 1880, originated from the Greek word “piezenin”, meaning, to press.
The original meaning of the word “piezoelectric” implies “Pressure electricity’ –the generation of electric field from applied pressure.
Working
A force is applied along a neutral axis (y) of a crystal and the charges are generated along the (x) direction, perpendicular to the line of force.
The amount of charge depends on the
geometrical dimensions of the respective piezoelectric element.
The pressure applied.
PIEZOELECTRIC ROADS
Present day we are using asphalt roads(Tar road) on which thousands of vehicles run on it.
When a vehicle passes over a road, the road deflects vertically(vibrates).
These vibrations are released as thermal energy which is being wasted.
By incorporating piezoelectric generators in the roads we can convert the vibrations caused by the vehicles into useful electricity.
Construction
The first layer is laid with fine graval and sand content.
Then a thin layer of asphalt is laid which acts like a strong base for the generators.
Piezoelectric generators are placed in quick drying concrete as per design and left for 30min.
CONCLUSION
This technology is tested in California and Israel and have proved successful.
This is an excellent alternative to reach the increasing demands for electricity.
We conclude that it should be implemented in India also to accelerate the development.