Idea to use efficiently solar Energy And Bio gas to produce safe and pollution free Electrical Energy.

1. BIOMASS SUPPORTED SOLAR THERMAL
HYBRID POWER PLANT

2. INTRODUCTION
 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.
 To overcome the disadvantages of both power plants they are
combined.
 Effective operating hours and therefore overall energy
generation is higher.

3. WORKING PRINCIPLE
 Solar thermal power plant comprises power plants which first convert solar
radiation into heat.
 The thermal energy is then transformed into mechanical energy by a
thermal engine, and then converted into electricity.
 For thermodynamic reasons high temperatures are required to achieve the
utmost efficiency.
 Such high temperatures are reached by increasing the energy flux density of
the solar radiation incident on a collector.

4. METHODOLOGY USED FOR HEAT
COLLECTION
Parabolic Trough Collector System
Parabolic Dish Focus System
Central Receiver System

5. PARABOLIC TROUGH PARABOLIC DISC CENTRAL RECEIVER
Parabolic Troughs (PTs)
are a class of solar
concentrators that are
curved as a parabola
and placed in a straight
line.
Tracks the sun by
rotating about two axes
and rays are brought to
a point focus.
Solar radiation
reflected from arrays of
large mirrors which are
called heliostats is
concentrated on a
receiver situated at the
top of a supporting
tower.
It is constructed as a
long parabolic trough-
shaped mirror,
generally made of
polished metal
Receiver is placed at
the focus.
Working fluid in the
receiver gets heated.
Heat transfer
fluid (usually oil) runs
through the tube
to absorb the
concentrated sunlight.
Using this heat steam
is produced.
Steam drives a prime
mover to generate
electricity.
A molten salt is used as
working fluid and
medium of thermal
storage.

6. PARABOLIC TROUGH PARABOLIC DISC CENTRAL RECEIVER

7. WORKING OF STPP

8. CHARACTERITICS OF STPP
Collects thermal energy from
sunrise.
When obtained energy is
insufficient stored energy is used.
Hence constant electrical output
is obtained.

9. PROPOSED BIOMASS SUPPORTED STPP FOR
STABLE AND CONTINUOUS OPERATION
Large amount of budget will be required for
building of large storage system.
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.

10. Solar thermal power plant with
auxiliary boiler
In addition an auxiliary boiler is
placed.
Fuel to boiler is provided from the
biomass plant.
Steam from the boiler is given to the
turbine in case of insufficient solar
radiation.

11. Characteristic of STHPP
with auxiliary boiler
Storage energy of STHPP remain
almost constant throughout the day.
So the electrical energy produced is
stable and continuous,

12. CONTRIBUTION OF
THERMAL ENERGY
STORAGE SYSTEM
Thermal energy is relatively easier and less costly to
store compared to electrical energy.
Sensible heat storage is most commonly used heat
storage.
Thermal storage system of STHPP consists of two
distinct tanks.

13. BIOMASS FOR STHPP
Obtained from biological materials such as plants, trees, waste,
sewage gas etc.
The effectiveness of power generation requires availability of
biological materials and their transportation.
Combustion gases from the auxiliary boiler are conveyed to flue
gas cleaning system and cleaned gases are released to atmosphere.

14. ADVANTAGE OF BIOMASS SUPPORTED STHPP
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.
Thus mixed steam reaches to rated value at exit of receiver.

15. Ensures 100% use of renewable sources to generate electricity.
Reduce pollution and increase the efficiency of STHPP.

16. CONCLUSION
Ensure to use 100% renewable sources.
Stable and continuous mode of operation.
The storage system of STHPP contributes to save biomass fuel that will
increase the overall efficiency of the plant.
This plant can be considered as most important modes to use solar thermal
and biomass power in future.

17. Development In This Field
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.
The world’s first plant combining biomass and
solar thermal energy in Catalonia

18. REFRENCES
D. Mills, "Advances in solar thermal electricity technology”.
Z. Y. Ming and W. Jun, "Trough system and tower system”.
G. Celli, et al., "Optimal location of biogas and biomass generation plants" .

19. THANK YOU

20. A SEMINAR PRESENTED BY
AKASH SINGH NIRAJ
S7 EEE
REG. NO. 19150206
ROLL NO. 10