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1. SAI SPURTHI INSTITUTE OF TECHNOLOGY
(AN ISO 9001:2011 CERTIFIED INSTITUTION&ACCREDITED BY NAAC-UGC)
B.GANGARAM, SATHUPALLY, KHAMMAM,T.S-507303
Department of Electrical and Electronics Engineering
A.Y 2017-2018
SENIOR FACULTY SEMINAR INCHARGE HEAD OF THE DEPARTMENT
Mr. A. Gopi Mr . T. Rambabu Mr. K. Rama Krishna Prasad
M.Tech (PE&ED) M.Tech (PE&ED) M.Tech(PE)
Technical Seminar
on
“SOLAR BASED COOL CAP”
Submitted
By
J.SURESH 14C51A0217

2. CONTENTS
Introduction
Solar Process
Components
Block Diagram
Working
Advantages
Dis Advantages
Applications
Conclusion

3. INTRODUCTION
Solar panels (arrays of photovoltaic cells) make use of
renewable energy from the sun, and are a clean and
environmentally sound means of collecting solar energy.
The Solar Cooling Fan Caps are specially designed for
summer tourists as well as fishing and climbing mountains,
playing golf, sport meeting, people working outdoors and
children.
It's good for preventing sunstroke and lowering the
temperature and they make great gifts.

4. The solar cell can transfer solar energy directly into electric
power which can turn on the fan.
 Its fanning can change automatically depending on the
availability of sunlight.
 Wear these caps during the hot summer and you can enjoy
a cool, gentle and agreeable breeze.
The solar Fan Cap offers you a pleasant cool world to
accompany you in your summer activities.
The novel design of our solar Fan Caps is fun for kids of all
ages

5. SOLAR PROCESS
The basic component of a solar cell is pure silicon.

6. COMPONENTS
Solar Panel
Rechargeable Battery
Cooling Fan
Step Down Transformer
Voltage Regulator(7805)
Temperature Sensor
Switch.

7. BLOCK DAIGRAM

8. WORKING
 The Solar panel of 3V is used and a rechargeable battery is provided
to store the energy.
An ON /OFF switch is provided for user controlled operation.
The uniqueness of this project is, the cap can sense the intensity of the
sun light temperature and automatically switches on the cooling fan
without user’s interference.
A battery charger circuit is designed to charge the battery with the help
of house hold AC supply for emergency conditions.
This circuit uses regulated 5V, 500mA power supply. 7805 three
terminal voltage regulator is used for voltage regulation.
Bridge type full wave rectifier is used to rectify the ac output of
secondary of 230/12V step down transformer.

9. SOLAR BASED COOL CAP

10. ADVANTAGES
A solar fan is more environmentally friendly.
It's good for preventing sunstroke
Highly sensitive
Weight less equipment
Reliability is high
Works according to the sun direction
Low cost equipment

11. DISADVANTAGES
Solar energy can be used only during the daytime .
The solar batteries that are charged or needs to be charged
are very heavy and require large storage space.
Replacing of solar panels are also difficult.
Its low in efficiency.
The sun will only work if the delivery of photons is
consistent.
Replacing the solar energy panels is also a very difficult job.

12. APPLICATIONS
Industrial applications
Sports purpose
Commercial purpose
Marine applications(fishing)

13. CONCLUSIONS
Nowadays, Solar Cooling is both possible and reliable.
Exploitation of solar thermal energy for cooling is an
efficient, intelligent and environmentally friendly way to use
renewable energy sources to meet our air conditioning needs.
However, applications of solar cooling are actually too few.
This is both the cause and the result of the low levels of
penetration of this technology.