solar biomass hybrid power plant for economical electricity production

1. SOLAR-BIOMASS
HYBRID POWER PLANT
GUIDED BY, SUBMITTED BY,
Asst. Prof. LIJUSH PAUL PRAJEESH PV
Mechanical dept. M7B NO: 64
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2. CONTENTS
 INTRODUCTION
PLANT SCHEMATIC
MAJOR SYSTEM COMPONENTS
Parabolic Trough Concentrator
Biomass gasifier
Boiler
Turbine
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3. INTRODUCTION
Biomass obtained from biological materials such as
plants, trees, waste.
Use of non-renewable energy cause environmental
pollution and also they gets depleted.
Pollution free, freely available renewable sources are
best alternative.
Solar power plants are widely used but its main
problem is variability.
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4. Contd...
To overcome the disadvantages of both power plants
they are combined
By shared use of some of the equipments effective
cost is less than simple addition
Effective operating hours and therefore overall
energy generation is higher
Hence this can be considered as technology for
future
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5. PLANT SCHEMATIC
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6.  Superheated steam required to generate useful power
Requires almost 80% of the energy from the boiler to
reach saturated vapour phase.
Use solar energy for this purpose.
Biomass supported plant can contribute to generate
electrical energy continuously
An auxiliary boiler is used to heat water whose fuel
is provided from the biomass plant.
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7. MAJOR SYSTEM COMPONENTS
Parabolic trough concentrator
Biomass Gasifier
Boiler (producer gas burner)
Super heated steam turbine
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8. Parabolic Trough Concentrator
High efficiency and durable
mirror film technology
Less thermal losses.
Heat transfer fluid (usually
oil) runs through the tube
to absorb the concentrated
sunlight.
Heat is used to produce
super heated high pressure
steam
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9. A solar thermal
collector gathers the
heat from the solar
radiation and gives it to
a fluid named as heat
transport fluid.
Then the fluid passes
to a heat exchanger.
The heated wated goes
to the boiler for steam
generation.
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10. BIOMASS GASIFIER
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 Biomass gasification is a
process of converting solid
biomass fuel into a gaseous
combustible gas (called producer
gas).
 Syngas consists of mainly
hydrogen
 The advantage of gasification is
that using the syngas is
potentially more efficient than
direct combustion of the original
fuel because it can be combusted
at higher temperatures.

11. SYNGAS
 Syngas is usually a product of gasification and the main
application is electricity generation.
 Syngas can be produced from biomass, by reaction with
steam (steam reforming)
 CH4 + H2O → CO + 3H2 CO + H2O → CO2 + H2
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12. BOILER
Provide superheated steam
Designed to burn syngas from
gasifier
Fuel to boiler is provided from
the biomass plant
Steam from the boiler is given
to the turbine in case of
insufficient solar radiation
Combustion gases from the
boiler are conveyed to fuel gas
cleaning system and cleaned
gases are released to atmosphere.
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13. EXTRACTION (CONDENSING) STEAM
TURBINE
 The extraction turbine contains
two outlets
 The first outlet extracts the steam
with intermediate pressure for the
feeding of the heating process
 Second outlet extracts the
remaining steam with low-
pressure steam for the
condensation.
 The condensed water then goes
back to the boiler for the
regeneration of the electricity of
power.
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15. The world’s first plant combining biomass
and solar thermal energy in Catalonia,spain
It can generate 25 MW of
power enough to supply
75000 houses
It consist of almost 2,688
solar panels
Using this renewable
energy plant will prevent
24,500 tones of CO2 from
being released into the
atmosphere.
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16. ADVANTAGES
Redundant energy is stored during sunny days
When the parameters of steam cannot reach rated value
during insufficient solar radiation, then biomass plant starts to
operate
Ensures 100% use of renewable sources to generate
electricity
Reduce pollution and increase the efficiency
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17. CONCLUSION
Stable and continuous mode of operation
Ensure to use 100% renewable sources
Reduces the usage of biomass.
Lowers the carbon footprint by not burning the biomass.
Suitable for distributed power generation in any location.
Efficient in solar thermal energy conversion.
This plant can be considered as most important modes to
use solar thermal and biomass power in future
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18. REFERENCES
 http://www.sciencedirect.com/science/article/pii/S2214157X1
4000057
 http://biomasspower.gov.in/document/flipbook-pdf-
document/Solar%20Biomass%20Hybrid%20Plant%20in%20
Spain.pdf
 http://www.renewableenergyworld.com/articles/2010/01/impo
rting-solar-power-with-biomass.html
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19. THANK YOU
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