generation of electricity by roads

1. s.k.d Engineering college
PIEZOELECTRIC ROADS
PRESENTED
BY
B.Sai suhas
&
p.Pavan kumar

3.  INTRODUCTION
 PIEZOELECTRICITY – HISTORY
WORKING
 PIEZOELECTRIC ROADS –
CONSTRUCTION
HARVESTING MECHANISM
 COST ANALYSIS
 COMPARISON
 ADVANTAGES
 FUTURE PLANS
 CONCLUSION

4.  Electricity is a basic need for everyone
 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“

5. Piezoelectricity, discovered by Curie brothers in 1880, originated
from the Greek word “piezenin”, meaning to press.

6.  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
1. Geometrical dimensions
of the respective
piezoelectric element.
2. The pressure applied.

7.  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
(vibrates) vertically.
 These vibrations are released
as thermal energy which is
being wasted.

8.  The first layer is laid with fine gravel 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
and left for 30min.

9.  Then all the generators are wired in series to get collective
output.
 A bitumen sheet is used to cover all the generators to provide
better adhesion of concrete to asphalt.
 Finally a thick layer of asphalt is laid which finishes the
construction.

10.  Generators harvest the mechanical energy of the vehicles and converts to electrical
energy.
 Then it is charged into the battery on one side of the road.
 From there it is distributed .
 Yield : For one km of piezoelectric road, of one lane we can generate 44000 KWh/yr.

11.  Solution does not take up any public space
 Functions in all weather conditions
 Low maintenance after implementation
 Solution is integrated with infrastructure – theft and
damage proof and interruption in power supply

12.  Generator size: 1sq ft
 1 Generator = Rs.2000
 No of Gen. needed = 3280 (for 1km of road.)
 Cost estimation= 70lakhs (for 1 km of road.)

13. We have taken the outer ring
road project of Hyderabad to
compare
The overall budget of this project
is 6700cr
In this a 8 lane road of 158km
stretch is laid
If a piezoelectric road is laid
……
The budget becomes 6800 cr
which is only 1.5% increase in
overall budget

14. Power generation:
 Every year 44000 kwh is generated in one km single lane road.
 So if we calculate,
158km x 8 lane x 44000kwh = 55616000 kwh
can be generated.
 In general gov of India charge Rs.5 on an avg per 1kwh ,so by calculation .
5 x 55616000 = Rs.270000000 (27 Cr)

15. • The amount invested on this road returns in just less
than 4 yrs.
• The average life of this piezoelectric road is 30years
…so the income generated in the next 26 yrs would
be a profit.

19.  This is a green solution for power
generation.
 It is relatively inexpensive and easy to
install.
 Even the most untouched and
remote areas can be electrified.
 Dependence on thermal electricity
is minimized which in turn saves the nature.

20.  This Technology is also applicable to airport runways
and rail systems.

21. This is an excellent alternative to reach the increasing
demands for electricity.
It should be implemented in India also to accelerate
the development.