SOLAR BOMASS HYBRID POWER PLANT

1. SOLAR-BIOMASS
HYBRID POWER PLANT
GUIDED BY, SUBMITTED BY,
Asst. Prof. LIJUSH PAUL PRAJEESH PV
Mechanical dept. M7B NO: 64
1

2. CONTENTS
 INTRODUCTION
PLANT SCHEMATIC
MAJOR SYSTEM COMPONENTS
Parabolic Trough Concentrator
Biomass gasifier
Boiler
Turbine
2

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.
3

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
4

5. PLANT SCHEMATIC
5

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.
6

7. MAJOR SYSTEM COMPONENTS
Parabolic trough concentrator
Biomass Gasifier
Boiler (producer gas burner)
Super heated steam turbine
7

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
8

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.
9

10. BIOMASS GASIFIER
10
 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
11

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.
12

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.
13

14. 14

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.
15

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
16

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
17

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
18

19. THANK YOU
19