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MOBILE CHARGING IN TWO WHEELER

USING WINDENERGY

A MINI PROJECT REPORT

Submitted by

N.ARAVINDH (090111808002)

A.MOORTHY (090111808026)

V.DHUVARAKESAN (100411808002)

in partial fulfillment for the award of the degree

of

BACHELOR OF ENGINEERING

in

MECHANICAL ENGINEERING

NARASU’S SARATHY INSTITUTE OF TECHNOLOGY, SALEM

ANNA UNIVERSITY COIMBATORE 641047

APRIL 2012

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ANNA UNIVERSITY COIMBATORE 641047

BONAFIDE CERTIFICATE

Certified that this project report “MOBILE CHARGING IN TWO WHEELER

USING WIND ENERGY” is the bonafide work of N.ARAVINDH

(090111808002),A.MOORTHY(090111808026),V.DHUVARAKESAN

(100411808002)who carried out the project work under my supervision.

SIGNATURE OF GUIDE SIGNATURE OF HOD

Mr.V.Boopathi Raja., M.E.,(Ph.D)., Mr.V.Boopathi Raja., M.E.,(Ph.D).,

Sr.Lecturer Sr.Lecturer

Dept. of Mechanical engineering Dept. of Mechanical Engineering

Narasu’s Sarathy Institute of Technology Narasu’s Sarathy Institute of Technology

------------------------- ------------------------

Internal Examiner External Examiner

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ACKNOWLEDGEMENT

.

We are glad to express our sincere thanks to our beloved Chairman

Thiru R.P.Sarathy., Vice Chairman Mr.K.R.Ramanujam, vice Chairman (admin)

Mr. G. Prabakaran., Secretary/Pro-Chairman Mr. B. Nitish Harihar., and all the

Narasu’s Sarathy Institute Of Technology Administrative heads for providing us

all the facilities during the course of study.

We feel much pleased to express thanks to our Principal, the guide light for

every action Dr. K. Raja for his consistent encouragement and his extended

support.

We would like to express our sincere thanks to Mr. V. Boopathi Raja Head of the

Department & project guide for his encouragement, valuable suggestions and

support in doing this project.

We express our sincere thanks to the faculty members and non-teaching

staffs for their moral support, help and encouragement which makes our project to

complete successfully.

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ABSTRACT

Generally wind energy systems can convert the kinetic energy to more useful forms of power.

Wind blades transform the energy in the wind into mechanical power, which can then be used to

generate electricity and it can be used to charge large batteries. But for initial stage we have tried

it in miniature level of charging a 12v lead acid battery since it is easily available to us. So This

paper deals with implementation of wind driven generator technology to produce electricity

in charging of mobile phone in two wheeler. We are generating electrical energy with help of

wind energy when the vehicle is running. The generated electrical energy will be stored in the

lead acid battery which can be used for charging purpose.

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CONTENTS

CHAPTER 1 INTRODUCTION

CHAPTER 2 EXPERIMENTAL SETUP

CHAPTER 3 ANALYSIS OF FAN

CHAPTER 4 WORKING

CHAPTER 5 RESULTS AND DISCUSSIONS

CHAPTER 6 TASKS OVERCOME

OBSERVATION

LIST OF COMPONENTS

COST OF COMPONENTS

CHAPTER 7 CONCLUSION

CHAPTER 8 FUTURE SCOPE

REFERENCES

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LIST OF TABLES:

S.No Expansion

1 Observation

2 List of components

3 Cost estimation

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LIST OF FIGURES:

S.NO EXPANSION

1 a dc generator

2 Three bladed fan

3 Charging wire with mobile connector pin.

4 Different views of the fan

5 Properties of the fan

6 Actual setup

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Chapter 1

INTRODUCTION

With the population explosion, exploitation of natural resources is heading towards its peak.

Some projections indicate that the global energy demand will almost triple by 2050 and oil can

only supply the world for up to 150 years. Keeping these facts in mind, science has started

emphasising upon sustainable development and has come up with advanced methods of energy

conservation. We have developed different technologies for utilization of renewable resources of

energy and these technologies are also being implemented in almost all sectors. Whether it is

power generation by hydro projects or use of large scale solar panels, these technologies are

being used at an extensive scale.

WIND ENERGY

Wind energy is the kinetic energy associated with the movement of atmospheric air. It has been

used for hundreds of years for sailing and for irrigation. Wind energy systems convert this

kinetic energy to more useful forms of power. Wind blades transform the energy in the wind

into mechanical power, which can then be used directly for sailing etc. or further converting to

electric power to generate electricity. Small wind turbines called aero-generators can be used to

charge large batteries. Five nations – Germany, USA, Denmark, Spain and India – account for

80% of the world’s installed wind energy capacity. Wind energy continues to be the fastest

growing renewable energy source with worldwide wind power installed capacity reaching 14,000

MW.Realizing the growing importance of wind energy, manufacturers have steadily been

increasing the unit size of the wind electric generators since the late 1980s.

DC GENERATOR

An electrical Generator is a machine which converts mechanical energy (or power) into electrical

energy (or power).

Principle of DC GENERATOR:

It is based on the principle of production of dynamically (or motionally) induced e.m.f

(Electromotive Force). Whenever a conductor cuts magnetic flux, dynamically induced e.m.f. is

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produced in it according to Faraday's Laws of Electromagnetic Induction. This e.m.f. causes a

current to flow if the conductor circuit is closed.

Hence, the basic essential parts of an electric generator are :

1)A magnetic field and

2)A conductor or conductors which can so move as to cut the flux.

Construction :

A single-turn rectangular copper coil abcd moving about its own axis in a magnetic field

provided by either permanent magnets or electromagnets. The two ends of the coil are joined to

two split-rings which are insulated from each other and from the central shaft. Two collecting

brushes (of carbon or copper) press against the slip rings.

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Chapter 2

EXPERIMENTAL SETUP:

The generator coupled with the fan is fixed in the front of vehicle and allowed to

rotate freely in the atmospheric air to get the electric charge for mobile phone

charging purpose.

S.NO NAME OF COMPONENTS

1 DC GENERATOR

2 FAN WITH THREE BLADES (PLASTIC)

3 BATTERY

4 DC CHARGER

5 MOBILE CONNECTOR

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SPECIFICATION:

FAN:

LENGTH OF THE BLADE=78mm

LENGTH OF THE SHAFT=10mm

DIAMETER OF FAN=156mm

MATERIAL=THERMOPLASTIC

WEIGHT OF FAN= 7g.

GENERATOR:

VOLTAGE=12v

TYPE: SHUNT TYPE GENERATOR.

DC CHARGER:

It is the special purpose charger used to convert 6/12v to 4v.

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Figure of components:

1.A DC GENERATOR

2.THREE BLADED FAN

3.CHARGING WIRE WITH MOBILE CONNECTOR PIN

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Chapter 3

ANALYSIS OF FAN (USING CATIA SOFTWARE)

WHY PLASTIC FAN?

There are some reasons to chosen the plastic fan. They are following,

Less weight

Can produce more rotations

Can produce high mechanical energy

Easily available.

The different views of the fan with the above dimensions are,

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The properties of the fan used are shown below,

So due to the above properties, the fan can withstand for long time.

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Chapter 4

WORKING:

Since the required properties for the rotation has obtained in the above fan it is finalized and used

in our project.

Here in our project we used TVS XL HEAVY DUTY vehicle for testing.

1.The generator coupled with the fan is fixed in the front side of the vehicle (below the head

light)

2.Then it is connected with the battery (lead acid battery) and dc charger.

3.As the dc charger having the capacity to convert 6/12 v to 4v (required for charge the mobile

phone) it is used here.

4.So then the dc charger output is given as input to the mobile phone to charge it.

5.The charging will start when the vehicle reaches the speed of 30km/hr.

6.Before reaches the above speed it will produce some electric charge and stored in the battery.

CIRCUIT DIAGRAM

The general circuit diagram of this project is,

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ACTUAL SETUP

The following figure is the actual setup of the above working,

Where,

1 - it is the place where the generator setup is placed

2 - it is the place where battery is kept.

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Chapter 5

RESULTS AND DISCUSSIONS:

By the above method it produced the current required for charge the mobile phone.

If it reaches the maximum speed also it will produce charge up to its maximum.

since that vehicle used is 67cc we planned to use this method in some other

vehicles which having higher capacity than this.

The following results were obtained while checking with the 12v Dc Generator.

S.NO

SPEED OF THE

VEHICLE (km/hr)

VOLTAGE

GENERATED(V)

1 10 2.5

2 20 4.3

3 30 6.2

4 40 7.3

5 50 8.4

6 60 8.9

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Comparison:

Comparison graph(speed vs voltage)

Battery Efficiency

Lead acid batteries typically have coulombic efficiencies of 85% and energy efficiencies in the

order of 70%.

Battery stand by time

Since Lead acid batteries having the above efficiencies it dissipates very negligible amount of

charge only if we don’t use it for some days .

Voltage

(v)

Speed (km/hr)

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8

7

6

5

4

3

2

10 20 30 40 50 60

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Chapter 6

TASKS OVERCOME:

First we checked how much voltage is generating for different speeds in the

vehicle.

While checking that with 12v dc generator it produced the minimum voltage

of 2.5v for 10km/hr and maximum voltage of 8.9v for 60 km/hr.

After then we fixed the setup in back of the vehicle (below the danger light)

there it is not efficient (i.e the air required for rotation of fan is very low)

So again we changed the location to front side of the vehicle.

In front side the above observations were obtained.

Then the fan with two blades are coupled with generator and tested

After then, for getting more number of rotations of fan we changed the fan

with three blades.

Its efficiency is more compared to the two blade fan since its self weight is

more.

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COST ESTIMATION:

S.NO NAME OF COMPONENTS AMOUNT IN RUPEES

1 DC GENERATOR 150

2 FAN WITH THREE BLADES (PLASTIC) 20

3 BATTERY 400

4 DC CHARGER 200

Total cost = 770rs.

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Chapter 7

Conclusions:

In this mini project electricity is produced from wind energy. By using this we can

charge the mobile in two wheeler while riding. In this project we made use of

generator coupled with the blades of fan in order to produce electricity. If the

vehicle is running at the speed up to the maximum of 60 km/hr it is producing

electric charge of (8-9)v. so it is an additional energy producing system for a two

wheeler. We can use the charge produced from this system for some other

purposes (head light, indicators, horn, etc.,). This method is very simple and

compact in size. Therefore it is appropriate for the vehicles which are less than 100

cc.

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Chapter 8

Future scope of this project:

In future, This project will be implement in the bikes which is more than

100cc by using the high voltage generators (120v, 230v, etc.,) and some

recent techniques.

In future, by this technique the power produced from that may be used to run

the electric bike is also possible.

In future the blades in the fan will be increased in numbers to get more

power will be tested.

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REFERENCES:

1.www.howstuffworks.com

2.www.inhabitatspirit.com

3. Dr S.N. Singh et al. / International Journal of Engineering Science and

Technology (IJEST)

4. www.otherpower.com/otherpower_wind_tips.html