BIO-MASS POWER PLANT
Biomass energy technology is one of the renewable energy
sources that can be harnessed in modernized way for electricity in rural areas.
The term biomass is a renewable organic substance of plants
and animal origin. It includes agricultural and forestry residues, animal and
human wastages, urban and industries waste, municipal solid waste (garbage)
etc.
Biomass has high moisture content and low calorific value. Modern
biomass technologies can convert biomass to solid, liquid or gaseous fuels at
improved efficiencies for electrical energy production.
Construction and working of biomass
power plant
In a steam power plant if the fuel is coal of lignite, is called thermal power plant or if the fuel is biomass then the plant is called Biomass power plant. The fuel gives up its heat on combustion to a boiler. For effective combustion air is allowed to flow in to the boiler. The boiler converts the heat energy of fuel into steam energy and delivers steam at a high pressure and temperature to the steam turbine. The steam energy drives the turbine, which is coupled to electrical generator. The turbine converts steam energy into mechanical energy and generator from biomass is illustrated in below fig.
Advantages of Biomass:
- It makes sense to use waste materials
where we can.
- The fuel tends to be cheap.
- Less demand on the Earth’s resources.
- No new co2 is emitted.
- The process is echo-friendly.
- Power generation through gasification
is economical at all capacities.
Disadvantages of Biomass:
- Collecting the waste in sufficient
quantities can be difficult.
- We burn the fuel, so it makes
greenhouse gases.
- Some waste materials are not
available all year round
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