Amit Kumar presented on solar tower technology. Solar towers generate electric power by focusing sunlight with an array of mirrors onto a central tower-mounted heat exchanger. Heat is transferred to fluid that can store the heat for later use in a steam turbine or motor. The presentation covered the history of solar technology, described the system components including heliostats and central receiver, showed a working diagram, discussed advantages like renewable energy with no pollution, and applications such as utility-scale power plants and street lighting. In conclusion, solar towers provide efficient, economical, and non-polluting power that can be implemented with other renewable technologies.

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SOLAR TOWER TECHNOLOGY
By
Mr. Amit Kumar Roll#EEE201110186
Under the guidance of
Mr. RAJESH PANDA
B.TECH. TECHNICAL SEMINAR PRESENTATION-2014
Mr. AMIT KUMAR(ROLL#EEE201110186)

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Mr. AMIT KUMAR(ROLL#EEE201110186)
B.TECH. TECHNICAL SEMINAR PRESENTATION-2014
CONTENTS
Introduction
History
System Description
Working Diagram
Advantages
Disadvantages
Applications
Conclusions

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Mr. AMIT KUMAR(ROLL#EEE201110186)
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INTRODUCTION
Solar power towers generate electric power from sunlight
by focusing concentrated solar radiation on a tower-
mounted heat exchanger (receiver).
It uses an array of flat, moveable mirrors(called
heliostats) to focus the sun's rays upon a collector tower
(the target).
The high energy at this point of concentrated sunlight is
transferred to a substance that can store the heat for
later use

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Mr. AMIT KUMAR(ROLL#EEE201110186)
B.TECH. TECHNICAL SEMINAR PRESENTATION-2014
History
Solar technology is not new process. Its history spans
from the 7thCentury B.C. to today. We started out
concentrating the sun’s heat with glass and mirrors to
light fires. Today, we have everything from solar-
powered buildings to solar powered vehicles.
Solar One, which operated from 1982 to 1988, was
the world’s largest power tower plant. It proved that
large-scale power production with power towers was
feasible.

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Mr. AMIT KUMAR(ROLL#EEE201110186)
B.TECH. TECHNICAL SEMINAR PRESENTATION-2014
SYSTEM DESCRIPTION
Solar power tower convert sunshine into clean
electricity. The technology uses many large, sun-
tracking mirrors commonly referred as heliostats to
focus sunlight on a receiver at the top of a tower.
The major components are:
• Heliostats
•Central receiver
• Steam turbine or Motor

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Mr. AMIT KUMAR(ROLL#EEE201110186)
B.TECH. TECHNICAL SEMINAR PRESENTATION-2014
HELIOSTAT
•Heliostat is termed Greek word
Helios- sun
stat – stationary
•A Heliostat is a device that tracks the movement of the
sun.
•The reflected sunlight from the heliostats can generate an
enormous amount of heat if all are oriented towards the
same target.

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Mr. AMIT KUMAR(ROLL#EEE201110186)
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CENTRAL RECEIVER
•Central receiver (or power tower) systems use a field of
distributed mirrors – heliostats – that individually track
the sun and focus the sunlight on the top of a tower.
•By concentrating the sunlight 600–1000 times, they
achieve temperatures from 800°C to well over 1000°C.
•Receiver panel has fluid which collects heat.

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Mr. AMIT KUMAR(ROLL#EEE201110186)
B.TECH. TECHNICAL SEMINAR PRESENTATION-2014
STEAM GENERATOR OR TURBINE
•Siemens steam turbines can be operated in plants
with all current heat transfer mediums like air, water/direct
steam and molten salt.

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Mr. AMIT KUMAR(ROLL#EEE201110186)
B.TECH. TECHNICAL SEMINAR PRESENTATION-2014
WORKING DIAGRAM

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Mr. AMIT KUMAR(ROLL#EEE201110186)
B.TECH. TECHNICAL SEMINAR PRESENTATION-2014
ADVANTAGES
Solar energy comes directly from the sun it is not only
renewable, but also accessible in any part of the world.
Solar power is also one of the cleanest forms of
energy, since it creates no pollution, and produces no
greenhouse gases or waste products.
Most manufacturers of solar panels provide twenty-
year warranties for their equipment, guaranteeing long-
life operation.

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Mr. AMIT KUMAR(ROLL#EEE201110186)
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DISADVANTAGES
The most obvious drawback of solar energy is its
sole dependence on the sun. Once the weather
becomes cloudy or night time strikes, energy
collection comes to a halt.
Huge amount of water and land is required.
Solar panels can also be expensive, because of the
materials that are used to create them. This includes
portable devices that utilize solar energy.

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Mr. AMIT KUMAR(ROLL#EEE201110186)
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APPLICATIONS
Solar Powered LED lighting system provides bright
light charged by sunlight. Suitable for wherever the
grid electricity is unreliable or unavailable.
In order to supply Electricity for street lights, solar
power tower technologies are used.
These plants are best suited for utility-scale
applications in the 30 to 400 MW range

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CONCLUSION
It is very efficiency system can be increased by
hybridizing it with the other conventional plants.
Very economy excluding initial cost.
Non pollutant power technology
Can be implemented with alternative like WIND and
HYDRO power generation

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REFERENCES
• http://en.wikipedia.org/wiki/Concentrated_solar_po
wer
• http://reneweconomy.com.au/2013/how-it-works-
solar-power-towers-with-integrated-storage-78892
• http://www.wipp.energy.gov/science/energy/powert
ower.html

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THANK YOU