This document proposes generating electricity from speed breakers. It discusses using the kinetic energy from vehicles passing over speed bumps to power an electric generator via various mechanisms. The scope is to produce low-cost electricity at locations with traffic. Construction details and the basic principle of converting mechanical to electrical energy are provided. Challenges in initial experiments and achieving proper balance are also noted. While output was low, the concept was demonstrated. Future scopes include designs for heavier vehicles and more efficient mechanisms.

1. POWER GENERATIONPOWER GENERATION
FROM SPEED BREAKERSFROM SPEED BREAKERS
By
Shyam Kumar G

2. OVERVIEWOVERVIEW
Introduction
Scope ,merit and use
Construction details.
Basic principle.
Challenges faced.
Future scopes.

3. 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. Construction details:Construction details:
Initial experiments- DC motor as
Generator(electric dynamo).
Spur gears
Flywheel
Shaft.
Springs
bearings

6. Electric dynamoElectric dynamo

7. 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

8. Crank shaft machanismCrank shaft machanism

9. Crank shaft machanismCrank shaft machanism
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.

10. Roller machanismRoller machanism
Side view

11. Roller mechanism has some different
disadvantages.
Maintenance will be very difficult
Might cause collision.

12. Rack and pinion machanismRack and pinion machanism

13. Rack-Pinion assembly gives good
mounting convenience
 Maximum gear losses– 3 to 5%
Efficiency– 95%

14. Challenges we faced!!Challenges we faced!!
Selecting suitable generator.
Selection of springs.
Achieving proper balance of speed and
torque.

15. What we achieved???What we achieved???
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.

16. 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.