Concentrated solar power (CSP) plants harness solar energy to generate electricity, leveraging technologies such as dish/engine systems, trough systems, and power tower systems. With vast amounts of solar energy available in deserts, CSP could meet global electricity needs while also supporting industrial applications. However, challenges such as energy storage and efficiency improvements remain essential for the technology's future viability.

1. concentrated Solar Powerplant:
a revolution in electricity generation

 Presented By
 Rasmin kumar sahu
 Electrical & Electronics Engineering

Technical Seminar
On
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Introduction
Why Solar?
Creation Of Solar Power
The Technology
Applications
Technological Obstacles
Technological Breakthroughs
Additional Benefits
Conclusions
OVERVIEW

3. INTRODUCTION
 Every year, each square
kilometer of hot desert
receives solar energy
equivalent to 1.5 million
barrels of oil. Multiplying
by the area of deserts
world-wide.
This is nearly a thousand
times the entire current
energy consumption of the
world.
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4. WHY SOLAR ?
 In today's climate of growing energy needs and increasing
environmental concern, alternatives to the use of non-
renewable and polluting fossil fuels have to be
investigated.
 One such alternative is solar energy.
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5. Solar Power
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6.  Many people think of solar power as a few panels on the
roof of a house producing hot water or a bit of electricity.
 But according to reports made by , two German
scientists, Dr Gerhard Knies and Dr Franz Trieb,
calculate that covering just 0.5 per cent of the world's hot
deserts with a technology called concentrated solar
power (CSP) would provide the world's entire electricity
needs.
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7. CREATION OF SOLAR POWER
 Concentrated solar power plants produce electric power by
converting the sun's energy into high-temperature heat using
various mirror configurations.
 Mirrors concentrate the sun's rays on a pipe or vessel
containing some sort of gas or liquid that heats up to around
400{+o}C and is used to power conventional steam turbines.
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8. THE TECHNOLOGY
Three basic concepts –
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1.Dish/Engine System 2. Trough System 3. Power Tower System

9. TROUGH SYSTEM
 Made of long rows of concentrating
mirrors
 Only curved in one direction
 Track the sun from East to West
with surface that focuses sun’s
energy
 Heat transfer fluid runs through
pipe that is at the focus of the
troughs
 Heat is transferred to working fluid
(usually water) and used to power or
drive turbine
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10. Practical view of Trough type
An Acciona solar thermal power plant, located south of Las Vegas.
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11. POWER TOWER SYSTEM
 The first large-scale solar energy
project in the U.S. 1982
 Solar plant with a field of
computerized mirrors called
heliostats that follow the sun.
 Heliostats reflect rays towards
a central tower where heat is
used to produce steam.
 Steam turns a turbine like
in more traditional plants.
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12. Practical view of power tower system type
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13. DISH/ENGINE SYSTEM
• Still under development
• it uses the heat from the sun to drive a
Stirling engine to generate electricity.
• The concentrator is a highly reflective
mirror dish similar to a very large satellite
dish. The very concentrated sunlight (800
times normal) heats a working fluid in
contact with the receiver to a temperature
of approximately 650ºC.
• The thermal energy causes the cylinder
piston engine to oscillate back and forth at
50 or 60 cycles per second. The piston
moves a magnet back and forth inside a coil
of wire which generates an AC current. The
engine is air cooled by means of a radiator
and a closed water based coolant system
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14. Practical view of Dish/Engine type
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15. What happens at night?
 Power is stored during the daytime in molten salt at
approximately 1050°F
 Salt sometimes used to heat graphite which would be used as a
heat storage medium night-time operations are possible!
 Storage of heat from solar power plants can allow solar power
plants to operate around the clock
 unique because they can generate power when it is needed…day
or night…rain or shine
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16. APPLICATIONS
 Centralized large-scale (up to 200MWe installed capacity)
electricity generation where small and medium sized
producers are connected to large transmission grids.
 Remote applications (from 10kWe installed capacity) which
can be used to provide heat and electricity in small villages.
 Industrial applications where sectors such as food, textile,
chemical, etc. will be provided with clean energy in the form
of steam, heat or electricity to replace all or part of the
fossil fuels needed during their manufacturing processes.
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17. Technological Obstacles
 Needs back up or storage system
 Storage: the solar thermal plans would need just
16 hours of storage to continuously generate
electricity
 Low efficiency
 increasing efficiency by 20-30% could significantly
reduce the cost of electricity
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18. Technological Breakthroughs
 Future solar collectors will be mass-produced using…
 lower cost flat mirrors, rather than curved troughs
 and sit low to the ground reducing wind loads
 Fast construction (1-2 years)
 Because CSP systems use conventional steam
turbines, hybrid configurations of trough solar and
natural gas turbines (oil and coal are possible too) can
be built for continuous electrical power on rainy days
and short winter days.
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19. Additional Benefits
 The peak demand period - during the hottest part
of the day, when air conditioners are running in
the office and home - coincides with the period of
time when the solar thermal power plant is at
peak production
 Steam is emitted rather than greenhouse gases
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20. Conclusion
Solar thermal energy could lead the India into a
renewable future.
Cost reduction of producing solar thermal energy could
make this the most viable type
of available energy.
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