ppt on piezo roads

2. Electricity – supply and demand in India
Piezoelectricity – History
Working
Piezoelectric roads- Intro
Construction
Harvesting
mechanism
Specifications
Comparison
Advantages
Disadvantages
Conclusion

3.  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

4.  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“

5.  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.

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 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.

8.  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.

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 layed which finishes the
construction.

10.  Generators harvest the
mechanical energy of the vehicles
and converts to electrical energy.
 Electricity energy is transferred
and stored via harvesting module.
 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 KW·h/yr.

11.  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.)

12.  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

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

14.  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.

15.  This is a green solution for
power generation.
 The centralization of power is
minimized .
 Even the most untouched and
remote areas can be electrified.
 Dependence on thermal
electricity is minimized which
in turn saves the nature.

16.  The only disadvantage is that maintenance of these
roads is a bit difficult and constant inspections are to be
made.

17.  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.