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KOTA SUPER THERMAL POWER STATION (KSTPS) by RANJAN NAIK
Rajasthan's first major Coal fired Power
plant established in the year 1983.
Located on the left bank of the Chambal
River near Kota.
Total installed capacity of KSTPS is
Electricity by definition is electric current
or voltage that is used as a power source.
This electric power is generated in a power
plant,and then sent out over a power grid to your
homes, and ultimately to our power outlets.
11,6.6,3.3K.V. HT LEVEL
400 V LT LEVEL
3.3,6.6,11, or 33
110,132,220,400 K.V P.T
33 or 66 K.V. ST
This picture shows how electricity gets to your home.
A generating station which converts heat
energy of coal combustion into electrical
energy is known as Thermal Power
is fed to the
by conveyor belts
From the coal storage
plant, coal is delivered
to the coal
plant where it is
coal is pulverized i.e. ground to dust like size and
carried to the furnace in a stream of hot air
Rate of combustion can be
Even low grade coal can be
The percentage of excess air
required is low.
Investment cost of plant is
Explosion hazards exist.
Auxiliary power consumption
of the plant increased.
A ball mill used for pulverisation of coal
The products of
Low initial cost
economical tubes for
through the only
low are surrounded
Simple, compact and
rugged in construction.
In this boiler water flows
Lesser weight and hot
inside the tubes
Uniform heating of all
gases flow outside the
Further classified as
Better ,horizontal and
vertical control of
Removes furnaces bottom and fly ash
to carry ash
to dump sites
A sluicing system is
A pneumatic system
generally used for
is usually employed
removal of furnace
for disposal of fly
A super heater is a device which superheats the
steam, it raises the temperature of steam above
boiling point of water.
Increases the overall efficiency of the steam.
A super heater consists of a group of tubes made
of special alloy such as chromium-molybdenum.
These tubes are heated by the heat of the flue
A steam turbine converts heat energy of a steam
into mechanical energy and drives the generator.
manufactured in a variety of sizes up to 1,000,000
h.p.or even more.
Only partial expansion of
steam is expanded Steam when issuing from
a small 3000 attains takes place infor nozzle
nozzle and attains a high opening rpm and a
standard speeds are
and further expansion takes
coupling to high velocity.
500hz generators.place as the steam flows over
Complete expansion of heat
the rotor blades.
takes place in the nozzle.
This velocity during is difference in
Steam pressure during the flow
expansion depends on the the two sides of
of steam remains constant.
the moving blade
Thus, pressure on initial and final heat
sides of blade is the same. of the steam
The purpose of economizer is to heat feed water so as to
recover apart of heat, which would otherwise be lost through
Flue gas out of the boilers carry a lot of heat. An economizer
extracts a part of this heat from the flue gases and uses it for
heating feed water.
Feed water outlet
Feed water inlet
Condensate the exhaust steam from the low
The surface condenser is a shell and tube heat
exchanger in which cooling water is circulated
through the tubes.
The steam enters the shell where it is cooled and
converted to condensate (water) by flowing over the
Generator is the main part of thermal power station.
A generator is a machine which converts
mechanical energy into electrical energy.
Alternator is Mechanically Coupled with the Steam
When temperature of about 600 C and
pressure of 300 bars is used, water enters
a supercritical phase.
Water has properties between those of
liquid Low grade fossil fuels can be
a number of organic compounds and
gases. NO2 emissions are completely
If H2O2 and liquid Oxygen is
combustion is started.
added, Overall efficiency -40%
In ultra Supercritical condition
Systems based on this principle are called
(above 700*C) Overall
We have learn’t how electricity is produced in thermal power
plant and its main and auxiliary equipments.
We have seen that the fuel sources that provide energy are not
going to be last forever.
We need to realize that and make worldwide leaders aware of the
energy crisis. If this continuous, we won’t have any energy left for
So, start saving electricity and make the environment green and