abstract biomass supported solar thermal hybrid power plantby raghav

8/13/2019 Abstract Biomass Supported Solar Thermal Hybrid Power PlantBy Raghav

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Seminar On

Biomass Supported Solar Thermal Hybrid Power

Plant

By,

Raghavendra G. Mesta

!G"#$$"%&


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iomass Supported Solar Thermal HybridPower Plant

'bstra(t

At present electricity generation from solar sources is being reached

a remarkable edge. A large scale electrical energy can be generated using

concentrating solar thermal hybrid power plant with storage system. It is

fact that solar thermal power plant (STPP) cannot operate stably and

continuously due to variability of solar irradiation. This paper proposed a

optimal operating mode of hybrid STPP power plant with biomass for

continuous electricity generation. The proposed system would be

contributed to operate the biomass supported solar thermal hybrid power

plant (STPP) with stably and continuously for the generation of electrical

energy. This paper is a technological review for the running mode of STPP

that will ensure !""# electricity generation from renewable sources with

optimi$ed operation strategies. The storage system of STPP contributes

to save biomass fuel that will increase the overall efficiency of the plant.

This I%%% Seminar Topic on &iomass Supported Solar Thermal

ybrid Power Plant discusses about the 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. &iomass plants are also

used but its fuel availability in large amount is difficult. To overcome the

disadvantages of both power plants they are combined. &y shared use of

some of the euipments effective cost is less than simple addition.

%ffective operating hours and therefore overall energy generation is higher.

ence this can be considered as technology for future.


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*eed of solar thermal power plant is increasing due to increased fuel cost

and environmental pollution. +orking similar to conventional thermal

power plant. Steam is generated through solar thermal energy instead of

fossil fuel.

Methodologies )sed

Parabolic Trough ,ollector System

Parabolic -ish ocus System

,entral /eceiver System

Paraboli( Trough


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In the above diagram we can see that how a parabolic collector focuses

sunlight in to focal point. It is the most cost effective and reliable among

the three. It is constructed as a long parabolic trough'shaped mirror

generally made of polished metal. eat transfer fluid (usually oil) runs

through the tube to absorb the concentrated sunlight.

Paraboli( *ish


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plant with an au0iliary boiler in addition an au0iliary boiler is placed. uel to

boiler is provided from the biomass plant. Steam from the boiler is given to

the turbine in case of insufficient solar radiation. Storage energy of STPP

remains almost constant throughout the day. So the electrical energyproduced is stable and continuous.

Ma+or System !omponents

3Parabolic trough concentrator

3&iomass 4asifier

3&oiler (producer gas burner)

3Super heated steam turbine

Paraboli( Trough !on(entrator

5edium Temperature Parabolic Trough (5TPT)

igh efficiency and durable mirror film technology

Temperatures up to 6""o ,.


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7ess thermal losses.

5odular 8 scalable.

Space frame light weight technology

%ase in construction and tracking.

Gasiier

34asification

Thermo'chemical process converts biomass into a gas.

The resulting gaseous compound is called Syngas

3Syngas consists of hydrogen and carbon mono0ide (and lesser amounts

of carbon dio0ide and other trace gases) under o0ygen depleted high

pressure high'heat and9or steam conditions.

3The gasifier is essentially a chemical reactor where various comple0

physical and chemical processes take place.

Other System !omponents

3&oiler

,ustomi$ed to provide superheated steam

-esigned to burn syngas from gasifier

*20 emissions up to 6" ppm


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Temperatures up to :;" , are achievable

%fficiency #

3Turbine

5ultistage impulse e0traction cum condensing

-esigned to produce ; 5+ electricity

+orking at :;", and :"atm

Plant Operation

-hen Solar Radiation is available

Solar field heats the working fluid (Therminol) from an input

temperature of >;"o, at saturated vapour.

The working fluid passes through the biomass boiler to reach the

steam turbine at input temperature of :;"", .

2ne gasifier only runs at ;"'?"# capacity and the others get turned

off.

-hen Solar Radiation is not available

Therminol bypasses the solar field and is completely heated in the

boiler.

All gasifiers run at full capacity to provide reuired thermal input.


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abstract biomass supported solar thermal hybrid power plantby raghav

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