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the virtual tour of coal based thermal
power plants half of the world's power
is produced by thermal power plants
first we will examine how the energy in
the pulverized coal is converted to
steam boiler is used for this purpose
the kind of boiler shown here is known
as a water tube boiler you can see the
different parts of the water tube boiler
including the economizer the steam drum
the down comer the water wall the
superheater and the reheater
in short in a boiler liquid water is
converted into superheated steam now
turn your head towards right and down
where you can see the steam turbine unit
of the power plant steam turbines are
the heart of the power plant and as you
can see large power plants typically use
different stages of steam turbines HP
turbine IP turbine and and LP turbines
are the three units of it you can see
how the steam flows through the system a
generator connected to the turbine unit
produces power let's take a closer look
at one of the rotor sections each blade
of the rotor is detachable as shown you
can look at the blades from different
directions to understand the 3d twisted
blade shape
you
after passing through the turbine unit
the Steam passes through condensers the
steam gets condensed into liquid formed
here an external source of cold water is
supplied at the condenser Inlet to
remove the heat from the steam you can
even see the internal piping of the
condenser now look to your left you can
see a pump the function of which is to
increase the pressure you can also see
the details of the backward curved
impeller the feedwater pump usually uses
multistage centrifugal technology now
let's go to the top once more to see the
remaining parts look in the direction of
the arrow you can see a piece of
equipment called an electrostatic
precipitator an ESP is used to clean the
flue gas ejected by the boiler ESP has
collection and discharge electrodes to
absorb the pollutants
turn your head to the left the equipment
you see here is called a deaerator the
main function of a deaerator is to
remove dissolved gases from the feed
water feed water is sprayed into the
deaerator with the help of a nozzle
steam blade from the turbine is used to
absorb the dissolved gas
now look behind you can see the gigantic
cooling towers cooling towers take
heated up water from the condenser and
supply cold water back into it they use
cooling processes by natural convection
please have a look towards doubt to
enjoy the aerial view of the whole power
plant unit we'd like to thank our
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