This document describes a student project to generate electricity from speed breakers. The project aims to improve India's electricity situation by converting the potential energy of vehicles passing over speed bumps into electrical energy using a rack and pinion mechanism attached to a generator. The system was designed and constructed to prove the concept, though the electrical output was low. Future work could optimize the design to increase output by targeting heavier vehicles and improving the efficiency of the energy conversion mechanism.

1. POWER GENERATION BY
SPEED BREAKER
DEPARTMENT OF MECHANICAL
ENGINEERING
Dayananda Sagar College of Engineering
Presented by:
NISHANT SARASWAT
USN:1DS11ME060
8TH SEM,SECTION-B

2. 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.

3.  OBJECTIVES:
 “Shaping Imagination”
 “Electricity”-Need of the hour

4. Scope, 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:
 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??
 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:
 Initial experiments- DC motor as
Generator
 How is electricity generated???
 Basic principle of generation of
electricity.
 What we did???

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

11. 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:
 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.