Transcript WALK-CHARGER by SUBHRANSU B., SAI

WALK-CHARGER
Presented by:
Subhransu B.
Std -IX
WALK-CHARGER by SUBHRANSU B.,
SAI International School
TOPICS TO BE COVERED
1.
2.
3.
4.
5.
6.
7.
8.
9.
Problem definition
Introduction to walk-charger
What is Walk-charger
Components of Walk-Charger
Snapshot of Walk-Charger
Piezo cell
Operations of Walk Charger
Why is the Device put in the Heel
Various Concepts used to Produce Electricity
- 9.1 Gear Box
- 9.2 Solenoid
10.
11.
12.
13.
Usage of Walk Charger
Improvements
Conclusion
Reference
WALK-CHARGER by SUBHRANSU B., SAI International School
The Inspiration
In 2013 the media was flooded with pictures of a natural
catastrophe in north India. Destruction of bridges and
roads left about 100,000 pilgrims and tourists trapped in
the valleys leading to three of the four HinduChota Char
Dham pilgrimage sites. The Indian Airforce , the Indian
Army, and paramilitary troops evacuated more than
110,000 people from the flood ravaged area. While
watching the media the idea of the development of
Walk-charger came to mind, as an alternate form of
energy to help people in need.
1.Problem Definition
• Generating Electricity and to meet its demand
is a big challenge in today’s world .
• Generating energy from motion called kinetic
energy which can be converted into
electricity can be said as green energy.
• Green energy can be very useful to charge
various devices like mobile, torch lamp, mini
fan, navigation tools, etc
• Hence the proposed work in the form of walkcharger is a sincere effort to solve the above
mentioned energy issues.
WALK-CHARGER by SUBHRANSU B., SAI International School
2.Introduction to Walk-charger
• Walk-charger generates green energy by
converting energy in motion to electrical
energy.
• Scope of walk-charger: It can be scaled from
mini charging like mobile upto medium devices
charging like laptops and tablet.
• In walk-charger the three various concepts
that can be used to produce electricity are
1. Gear box
2. Solonoid
3. Piezo cell
WALK-CHARGER by SUBHRANSU B., SAI International School
3.WHAT IS WALK-CHARGER ?
WALK-CHARGER by SUBHRANSU B., SAI International School
4.COMPONENTS OF WALK-CHARGER
The model of the WALK CHARGER is a shoe with:
 a thick heel to insert a device into it &
 simultaneously maintain the height of the
shoe.
The main circuit consists of:
 a miniature gearbox
 spring
 a 3000 to 4000 rolled copper wire
 magnets
 wires and mobile battery &
 piezocell
WALK-CHARGER by SUBHRANSU B., SAI International School
5.SNAPSHOT of WALK-CHAGER
LED
In the finished
product the
hammer wont
be there, it
just to show
the pressure
being applied
to Piezo cell
below it
Piezo cell
HAMMER
STORAGE
CELL
WALK-CHARGER by SUBHRANSU B., SAI International School
6. PIEZO ELECTRICITY
• Piezoelectricity
is
the
electric
charge that accumulates in certain solid
materials (such as crystals, certain
ceramics, and biological matter such as
bone, DNA and various proteins) in
response to applied mechanical stress.
• When the whole sole will be covered
with Piezo cells the production will
increase.
WALK-CHARGER by SUBHRANSU B., SAI International School
6. PIEZO ELECTRICITY
PRESSURE IS
BEING
EXERTED
PRESSURE IS
BEING
EXERTED
contd..
GALVANOMETER
Figure of Piezocell
WALK-CHARGER by SUBHRANSU B., SAI International School
7. OPERATIONS OF WALK-CHARGER
• First the hammer will hit the ground,
under it the Piezocell is present.
• Due to the pressure on the cell
electricity is produced & stored in
the storage cell.
• The cell is charged now to power
different devices.
WALK-CHARGER by SUBHRANSU B., SAI International School
8.WHY IS THE DEVICE PUT IN THE HEEL ?
• While walking the maximum pressure
is felt at the heel of the shoe.
• The more the weight of the person
the more pressure is felt.
• Unless we are sprinting, we are
letting the gravity do the work so,
the perfect place for the device is
the heel.
WALK-CHARGER by SUBHRANSU B., SAI International School
9.VARIOUS CONCEPTS USED TO
PRODUCE ELECTRICITY
• In our project the two different methods
earlier used to produce electricity are:
1.
2.
GEAR BOX
SOLENOID
WALK-CHARGER by SUBHRANSU B., SAI International School
WALK-CHARGER by SUBHRANSU B., SAI International School
WALK-CHARGER by SUBHRANSU B.,
SAI International School
9.1GEAR BOX
• The hammer has been
made in such a way that it
hits the ground first as
you walk or jog and levers
up as the foot comes
down.
• The arm is clutched with a
gearbox so that with
every step, the gears turn
slightly to drive a dynamo
fitted on the side of the
shoe.
WALK-CHARGER by SUBHRANSU B., SAI International School
9.1 GEAR BOX
Contd..
• This generates
electricity, which gets
stored in any storage cell.
•The electricity
generated finds its path
through wires via a
voltage regulator.
WALK-CHARGER by SUBHRANSU B., SAI International School
9.2 SOLENOID
•Electromagnetic
induction is the
production of a potential
difference (voltage)
across a conductor when
it is exposed to a
varying magnetic field
WALK-CHARGER by SUBHRANSU B., SAI International School
9.2 SOLENOID
Contd..
• Faraday's law of induction is a basic
law of electromagnetism predicting
how a magnetic field will interact with
an electric circuit to produce
an electromotive force (EMF).
• It is the fundamental operating
principle of transformers, inductors,
and many types
of electrical motors, generators .
WALK-CHARGER by SUBHRANSU B., SAI International School
10.USAGE OF WALK-CHARGER
With bench-top experiments, we have found
that the PROTOTYPE of the shoe can produce
upto 3.7 volts and we can charge 5 to 6
mobile batteries in a day.
WALK-CHARGER by SUBHRANSU B., SAI International School
10.USAGE OF WALK-CHARGER
contd..
•The other applications that we have made are:
•table lamp
•table fan.
•Even these charged cells can be used by defense
personnel and also during natural disaster as source
of electric energy
.
WALK-CHARGER by SUBHRANSU B., SAI International School
RELATED WORK COMPARISIONS:
Name of the Description of similar approach
similar
approach
Advantages
Disadvantages
1.
PEDI POWER The Pedi Power hits the ground before
SHOES [1]
any other part of the prototype shoe.
A lever arm strikes first. It is attached
to a gearbox that replaces much of the
shoe’s sole and turns the gears a little
with each step. The gears drive a
motor mounted on the outside of the
shoe that generates electricity to send
up to the battery.
• It provides
enough
energy to
charge a
mobile.
•It is not
compact.
•Heavy weight.
•Makes the
person
uncomfortable
while walking.
2.
SOLE
POWER [2]
•Can be
fitted in any
size of sole.
• Not safe, may
cause short
circuit.
•Very expensive
•Doesn't
supports all
types of
appliances
The mechanism is actuated by
every heel strike. During every step,
a small generator spins to create
electricity.
table1:-comparison of related works
WALK-CHARGER by SUBHRANSU B., SAI International School
11.Advantages of Walk-Charger
•
•
•
•
It is compact.
Made up of light weight materials.
comfortable while walking.
safe, all the electrical devices are
inserted within the sole made up of
insulating material.
• Affordable
• Produces enough energy to charge a mobile
phone in general.
WALK-CHARGER by SUBHRANSU B., SAI International School
12.IMPROVEMENTS
•The main concern that has
been improved is the weight
of the shoe. Firstly it was
very heavy but now due to the
use of light materials, the
weight of the shoe exactly
the same as that of a normal
shoe. We have made our
device a bit more compact.
•This approach likely to
provide enough dependable
power for phone and other
portable electronics.
WALK-CHARGER by SUBHRANSU B., SAI International School
CONCLUSION
• This project was a great learning to produce
electricity in non-conventional ways like from
walking.
• Many smaller utility devices can be used through
the charged batteries of walk-charger.
• The project gave a scope to improve upon areas
like the weight of the shoes, compatibility of the
device, & its efficiency.
• Future scopes are there to improve upon to run
larger devices.
WALK-CHARGER by SUBHRANSU B., SAI International School
REFERENCES
1. http://news.rice.edu/2013/05/07/prototypeprovides-pedestrian-power-2/ [1]
2. http://solepowertech.com/ [2]
WALK-CHARGER by SUBHRANSU B., SAI International School
Press Coverage
WALK-CHARGER by SUBHRANSU B., SAI International School
WALK-CHARGER by SUBHRANSU B., SAI International School
WALK-CHARGER by SUBHRANSU B., SAI International School
WALK-CHARGER by SUBHRANSU B., SAI International School
THANK YOU
WALK-CHARGER by SUBHRANSU B., SAI International School