It tells you about how we can use electricity in different ways and also tells you about how we can reduce electric vehicle problems

1. By
y.varun kumar
v.jayaprakash

2. INDUSTRIAL
REVOLUTION

3. PROBLEMS FACING WITH FOSSIL FUELS
Green House effect
Increase in oil prices
Depletion of ozone layer
Air pollution

4. To over come this problem
Electric vehicles

6. What next ?

7. On road chargingofelectricvehicles

8. The AC alternator can be used to convert mechanical
energy to electrical energy .
 Thus the power generated can be used for charging the
batteries while the car is in motion.
The principle of this idea is to use an alternator that is
connected to the shaft of the rear wheels.
When the shaft of the alternator is rotating that in turn
generates the electrical energy used for charging the
batteries.
Switching system connected for batteries and motor.
Principle :
USING AC ALTERNATOR

9. DESIGN OF ELECTRIC VEHICLE USING ALTERNATOR

10. Simplicity of the concept and design.
Applicable and economically viable.
It can travel to long distances.
There is no problem of charging hours.
Reduction of fossil fuel usage.
Advantages
Disadvantages
We should choose appropriate components
that match the different size of the vehicles

11. The term “Energy Harvesting” refers to the
generation of energy from sources such as
vibration ,ambient temperature(or) air flow.
“Piezoelectric Effect” is the method laid the
foundation of piezoelectric harvesters.
Principle
Piezoelectric materials generate electrical
energy(at electrical axis) when subjected to
mechanical strain(at mechanical axis).
•Note : It is not implemented practically i.e, it is just a model that it
can also create electrical energy with in electric vehicle body.
Piezoelectric harvesters

12. Arrangement of piezoelectric materials

13. Wireless Power Transfer (WPT)
Electric power is transferred to the vehicle by magnetic
coupling between a primary coil placed in the sand/epoxy
layer of the road and a secondary coil within the car body

14. Power flow diagram

15. Electric re-charging line

16. Overall view of wireless power transfer of electric vehicles

17. This was
implemented by “kaist”
company in “south
korea”
Power transfer
efficiency for this bus
is 85%

18. AC
ALTERNATORS
WPT PIEZOELECTRIC
HARVESTERS
Simplicity of the system
(1-5,5 is simplest)
5 3 2
Cost of implementation
(1-5,5 is lowest cost)
1 1 5
Spatial Efficiency
(1-5,5 is most efficient)
1 3 5
Practical feasibility
(1-5,5 is most practical)
4 5 1
Total Score(/20) 13 12 13
EVALUATION