2. Introduction:Introduction:
Is anyone happy with current situation of
electricity in India???
So, this is our small step to try to improve
this situation by our project.
First of all what does electricity mean to
us???
Electricity- secondary source of energy i.e.
converted from other sources.
We need it for every small thing, still notice
it’s importance only during load shedding.
4. Scope, Merits and UsesScope, Merits and Uses
Low Budget electricity production
Less floor area
No obstruction to traffic
Easy maintenance
Suitable at parking of multiplexes, malls,
toll booths, signals, etc.
Uses: Charging batteries and using them
to light up the streets, etc.
5. BASIC PRINCIPLE:BASIC PRINCIPLE:
Simple energy conversion from
Mechanical to Electrical.
To generate electricity using the vehicle
weight (potential energy) as input
Possible using 3 different mechanisms:
I. Crank-shaft mechanism
II.Roller mechanism
III.Rack- Pinion mechanism
6. Why Rack- Pinion mechanism??Why Rack- Pinion mechanism??
Crank-shafts are required to be mounted on
bearings which creates balancing problem
leading to mechanical vibrations which in turn
damage the bearings.
Secondly as bearings are of sliding type, any
occurrence of variable load( which is bit
obvious in case of vehicles!!) leads to balancing
problem.
7. Roller mechanism has some different
disadvantages.
Maintenance will be very difficult
Might cause collision.
8. What we did???
Rack-Pinion assembly gives good
mounting convenience
Maximum gear losses– 3 to 5%
Efficiency– 95%
9. Construction of generator:Construction of generator:
Initial experiments- DC motor as
Generator
How is electricity generated???
Basic principle of generation of
electricity.
What we did???
10. Challenges we faced!!Challenges we faced!!
Selecting suitable generator.
Selection of springs.
Achieving proper balance of speed and
torque.
11. What we achieved???What we achieved???
We LEARNT a lot.
Constructed our own generator by
applying the basic principle.
Although we got less electrical output,
we have successfully explained our idea
of generating electricity from speed
breaker.
12. Future Scope:Future Scope:
Such speed breakers can be designed for
heavy vehicles, thus increasing input
torque and ultimately output of
generator.
More suitable and compact mechanisms
to enhance efficiency.
