The document describes the design and development of a solar-powered bicycle. It includes sections on objectives, methodology, assembly of components, connection of components, future applications, advantages, and conclusions. The bicycle is designed to be pedaled manually but also has a 500W DC motor powered by batteries that can be charged via flexible solar panels mounted on the frame. This provides assistance on hills and longer trips while being economically friendly, non-polluting, and suitable for a variety of users and transportation needs.

2. • INTRODUCTION
• OBJECTIVES
• METHODOLOGY
• ASSEMBLY OF COMPONENT
• CONNECTION OF COMPONENTS
• FUTURE ASPECTS
• ADVANTAGES
• CONCLUSION

3.  The depleting reserves of fossil fuels made the engineers
and scientists to look for renewable energy sources. India is
spending large amount of foreign exchange to import crude
oil even though we have abundant resource of solar energy.
If we utilize solar power for local conveyance, a large
amount of currency can be saved and we can also ensure
pollution free environment and contribute to nation’s
economy.
 • The general mode of transportation for local trip (with in a
range of 5 km) is a bicycle, motor cycle or electrical bicycle.
Bicycles are the cheapest healthiest and eco-friendly but
poses problem in climbing slopes. Motor cycles are not
affordable to poor people and with the rising fuel prices
and pollutions; it does not seem a suitable option.
 • Hence a bicycle which can be peddled as well as run on
solar powered battery seems to be suitable option to solve
the issues.

4. • 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.
• In hospitals, Airports, Shopping malls, IT campuses, Hotels
&resorts, Power stations, manufacturing units, etc.
• Light weight & easy to control, makes convenient for use
by anyone.
• Controlled speed ensures rider’s safety.
• Can be used by old aged demography.
• On site charging facility. No need to visit fuel station.

5. •Firstly the DC Gear motor was connected to rear wheel
through chain drive, which is fitted on seat stay through
nut and bolts on iron strips welded to seat stay.
• The fabrication was carried out keeping in mind the
maximum load the motor will be able to withstand.
• Edge grinding was done to provide smoother surface
finishing on freewheel and iron strips.
• Welding to join the freewheel to DC motor shaft.
• All the fabricated parts were assembled.
• The throttle is powered by batteries which are fitted on the
handle.
• The throttle gets powered through battery and sends
signal/ output to the DC Gear motor.

6. S.N. Parameters Details
1. Wattage 500w
2. Ampere 26.7
3. Voltage 24V
4. DC 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.
24 V DC 500 W
2500 RPM

7. 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. S. No Parameters Detail s
1 Maximum
Power(P max)
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. Batteries used in SOLAR POWERED BICYCLE is
lead acid type because they have good life,
requires less maintenance and have high
efficiency.

10. +-
Solar panel
Battery
Motor Speed control unit
Accelerator

11. 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. 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. • DYNAMO SYSTEM COULD ALSO BE FITTED THAT COULD RUN AND
CHARGE THE BATTERIES DURING

13. • More economical than fuel-powered cars and motorcycles,
and cheaper
than buying an electrical vehicle for the city.
• No contamination, forget about CO2 emissions!
• The type of terrain or the distance, the electrical bike can be
more
comfortable since it allows the rider to cover more distance
or climb
hills when more moderate physical exercise is required.

14. 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 cores of foreign
currencies. It is eco-friendly & pollution free, as it does not have
any emissions.