Eco friendly power generation using spring coil mechanism . Here , power is generated using hydro electric power generation principle by spring and piston arrangement. by this we get new idea for generation of power at low price.

1. ELECTRICAL
ENGINEERING

2. Team members
Vohra Samir s. 120640109120
Divera Yuvrajsinh k. 120640109121
Mahida Pradhyumansinh n. 120640109123
Solanki KishanKumar m. 120640109124
internal guide : prof.ashok d pateliya

3.  Introduction
 Objective
 Different mechanisms with specification
 Block diagram
 Flow chart
 Particular mechanisms with merit & demerit
 Component and its specification
 Scope and application
 Reference

4.  In the present day scenario power has become the major
need for human life.
 Energy is an important input in all the sectors of any
countries economy.
 The day-to-day increasing population and decreasing
conventional sources for power generation, provides a
need to think on non-conventional energy resources.
 Here in this project we are looking forward to conserve
the kinetic energy that gone wasted, while vehicles move.

5.  The number of vehicles passing over speed breaker on
road is increasing day by day.
 Beneath speed breaker, setting up an electro-mechanical
unit known piston/water tank assembly could help us
conserving this energy and use it for power generation.
 This generated power can be stored, by using different
electrical devices.
 We can supply this energy to street lights, traffic lights,
and nearby areas, and thus helps in country’s economy.

6.  In our country there is to much short fall of electricity and we try
to overcome this problem by non conventional source of electricity
 To tap the potentially useful potential energy from vehicles plying
on the road.
 The objective of our project is to produce electricity by very low
price.

7.  SPRING COIL MECHANISM
 RACK- PINION MECHANISM
 CRANK-SHAFT MECHANISM
 ROLLER MECHANISM

8. Roller mechanism
 Maintenance will be very difficult.
 Might cause collision.
Crank shaft mechanism
 Crank-shafts are required to be mounted on bearings which
creates balancing problem.
 Mechanical vibrations which in turn damage the bearings.
 Because of above disadvantages We use ONLY SPRING COIL
MECHANISM & RACK- PINION MECHANISM.
 AMONG THIS WE USE SPRING COIL MECHANISM.

11.  Working process
 Vehicle approaching the speed breaker

12.  Maximum load on the speed breaker is when the vehicle is on
the middle of the speed breaker.
 Due to this force is applied on the piston/spring mechanism in
the water tank.
 And then water is coming outside of the tank.

13.  Now one valve is there which measured the pressure & Valve is
maintaining of flow of water.
 This water is passing on rotor blade which rotates & one chain belt
is there so Generator is also rotates with rotor.
 This generator generates electricity which can be used for lighting
of the lamps on the road or it may be stored in the battery and can
be converted in AC current using inverter and used for lighting of
the lamps, signals sign boards on the road.

14.  Piston/spring arrangement
 Water tank
 Turbine
 DC generator
 Battery/inverter

15.  The actual height of spring is 0.3m before loading.
 The deflection of the spring is given by
 δ = 64 w *n*N*R^3 /(Gd^4)
 Where, deflection (in our case maximum δ =0.1m)
 w=designed load
 R= mean diameter of coil
 d =diameter of wire
 n=no of spring turns
 G= Modulus of rigidity = 8*10^4 N/mm2
 N= No. of springs
 The no of turns in the spring to get the deflection of 0.1m is given by
 n= δGd^4/(64 w*N*R^3)

16.  Based on the strength, functional requirements and the properties
of the candidate materials as earlier stated, Stainless steel was
selected as the most suitable material for its excellent ability to
withstand high stress, good fatigue resistance and long endurance
for shock and impact loads.
 The spring used is in helical shape.
 The spring stiffness and spring deflection for the chosen spring are
17500 N/m and 0.01M.

17.  A small pelton wheel turbine is used .
 A pelton turbine consists of a set of buckets or cups
mounted on a hub.
 A pelton turbine operates in air with the wheel driven
by jets of high pressure water hitting the buckets or cups.

18.  A control valve or non-return valve is a mechanical
device, which normally allows fluid to flow through it in
only one direction.
 Control valves are two-port valves, meaning they have
two openings in the body, one for fluid to enter and the
other for fluid to leave.

19.  The mechanism of control valve is described in figure .
 Fluid flow in the desired direction opens the valve, while
backflow forces the valve closed.

20.  An electrical Generator is a machine which converts
mechanical energy into electrical energy (or power).
 For this model a permanent magnet DC generator with
drum type armature, wave winding is suitable which is
shown in fig
 Specification: voltage 12volt, 1200 rpm ,DC generator

21. Speed of vehicle
(kmhr)
Voltage generated
(volts)
10 7.93
20 6.28
30 5.03
40 4.66
50 3.03

22. Vehicle load
(Kg)
Max. Vol.
generated
(volts)
Mean Power
(Watt)
Charging Time
(sec)
205 10.73 7.99 3.9
250 12.83 9.47 4
320 13.05 10.5 4.1
400 14.91 11.21 4.2

23.  The battery used in the project work is rated for 6AH at
12V.
 It is a free type rechargeable battery generally called as
secondary cell. It can supply continuously for a specified
interval time.
 Current ratings varies in the case of lead-acid battery
with high ampere –hour capacity is called heavy duty
battery.

24. MERITES DEMERITES
 Low Budget electricity
production
 Less floor area
 No obstruction to traffic
 Suitable at parking of
multiplexes, malls, toll
booths, signals, etc.
 We have to check
mechanism from time to
time
 It can get rusted in rainy
season
 May not work with light
weight vehicles
 Less quantity

25.  This mechanism is very economical and easy to install.
 Two protocols of this type of speed breakers are
developed in India .not practically implemented till date.
 Practically implemented in New Jersy, China and
Indonesia.
 Lots of researches and investigations are going on to
practically utilize this technique.

26.  http://www.ijedr.org/papers/IJEDR1401219.pdf
 http://www.slideshare.net/biswajitcet13/power-generation-
from-speed-breakers
 http://files.engineering.com/download.aspx?folder=1bb7f012-
1965-4a79-b3f8-b62e6cdea29&file=POWER_HUMP.docx

27.  The existing source of energy such as coal, oil etc may not be adequate to
meet the ever increasing energy demands. These conventional sources of
energy are also depleting and may be exhausted.
 These are some non-conventional methods of producing energy. This
project is a one step to path of exploring the possibilities of energy from
several non-conventional energy sources.