This document describes a solar powered bicycle. It includes sections on the objectives of creating a solar powered bicycle, the methodology used including assembling the components and connecting them, issues that arose and their solutions, and future aspects and advantages. The key components are a 500W DC motor, solar panels that charge lead acid batteries, and a chain drive system to connect the motor to the rear wheel. The goals are to power the bicycle using solar energy to reduce human effort for transportation over short distances.

1. SOLAR POWERED BICYCLE
SUBMITTED BY :-
AMAN DHANKHAR

2. CONTENTS
• INTRODUCTION
• OBJECTIVES
• METHODOLOGY
• ASSEMBLY OF COMPONENT
• CONNECTION OF COMPONENTS
• PROBLEM AROUSED AND THEIR SOLUTIONS
• FUTURE ASPECTS
• ADVANTAGES
• CONCLUSION

3. INTRODUCTION
Solar bicycle also known as
solar e-bike is an electric
bicycle with an electric
motor which is driven by
the use of power from the
battery which is being
changed using solar energy
by solar panels.
Photovoltaic (PV) cells
contained in solar panels
convert the sun’s energy
directly into electric energy are
used.

4. OBJECTIVES
In human
transportation
as a
personalized
vehicle.
For inter
departmental
transportation
in huge
campuses.
In industries
for different
level personnel
to move
around to
inspect the
work
progress.
Light weight &
easy to control,
makes
convenient for
Controlled
speed ensures
rider’s safety.
Can be used by
old aged
demography.

5. METHODOLOGY
Connection
of dc motor.
Welding to
join the
freewheel to
DC motor
shaft.
All the
fabricated
parts were
assembled.
The throttle
fitted on the
handle.
Installation
of solar
panels on
the carrier.
Electrical
connections
to the parts.

6. MOTOR
S.N. Parameters Details
1. Wattage 500w
2. Ampere 26.7
3. Voltage 24V,DC
4. Weight 2.5 Kg
5. RPM 2500 RPM
• To run the bicycle and to reduce the human efforts the
bicycle was applied with an electric DC motor.

7. CHAIN DRIVE SYSTEM
• The motor was connected to the rear
axle of the bicycle by using the chain
drive system in which the motor was
fitted with a bearing that could
connect with the real axle using a
chain .

8. SOLAR PANEL
S.
No
Parameters Detail
s
1 Maximum
Power(Pmax)
20 W
2 Maximum Power
current
1.5A
3 Open circuit voltage 21.4V
4 Short circuit current 1.4A
5 Maximum
Voltage(VPM)
17.7V
• The panels were used to charge the batteries for
further use in the future.

9. BATTERY
• Batteries used in our project is lead acid type because they
have good life, requires less maintenance and have high
efficiency.

10. CONNECTION OF COMPONENTS

11. LIFE PERIOD
The majority of
manufacturers offer
the 25-year
standard solar
panel warranty, which
means that power
output should not be
less than 80% of
rated power after 25
year.
The rated power
output of solar
panels typically
degrades at about
0.5%/year.
The Maintenance of
the batteries is after
2 years.

12. PROBLEMS AROUSED AND
SOLUTIONS
MOTOR AXIS ALLIGNMENT
The axis of motor’s freewheel and
freewheel of rear wheel was difficult
to make on a straight line. The motor
was fitted with a bearing and the
real axle with the sprocket and were
joined with a chain drive system.
MATERIAL SELECTION FOR LINKS
The material selection for the linkages for
assembly of the battery was very
important as the weight of bicycle was a
main concern for us. Therefore, a
welding arrangement was made for the
battery and it was placed on the middle to
distribute the weight.

13. FUTURE ASPECTS
USE OF FLEXIBLE SOLAR PANEL
• THE FLEXIBLE E SOLAR PANELS ARE ALSO AVAILABLE IN THE MARKET. FLEXIBLE SOLAR PANELS CAN
BE VERY SUITABLE FOR THE PROJECT AS THESE CAN BE USED AS A SOLAR COAT FOR THE DRIVER.
SOLAR PANEL ON THE WHEEL RIM
• IF THE SOLAR PANEL GETS FITTED ONTO THE WHEEL RIM THEN IT WILL BE HELPFUL FOR OUR
PROJECT BECAUSE OF THEIR EASE IN BALANCING AND GOOD LOOKING DESIGN. AS SHOWN IN THE
FIGURE THE SOLAR PANEL CAN BE FITTED ONTO THE RIM WITHOUT USING EXTRA SPACE FOR THE
SOLAR PANELS.

14. Hub motor
Dynamo
Gear
Mechansi
m

15. ADVANTAGES

16. CONCLUSION
It is very much suitable for young, aged,
handicap people and caters the need of
economically poor class of society.
Its cleaner and you never have to buy gas
or change the oil. Thus leading to a
pollution free environment.
This bicycle is cheaper, simpler in
construction & can be widely used for
short distance travelling .
The most important feature of this bicycle
is that it does not consume valuable fossil
fuels thereby saving crores of foreign
currencies.
It is eco-friendly & pollution free, as it does not
have any emissions.