3. INTRODUCTION
1. Suratgarh thermal power station is the first super
thermal power Station of Rajasthan with total
installed capacity of 1500 MW and 93% PLF.
2. Suratgarh super thermal power station is located
27 km away from Suratgarh town in shri
Ganganagar Dist.
3.This station is operated and maintained by ‘Rajasthan
vidyut Utpadan Nigam Limited’.
4. S.S.T.P.S. is designed in six stages
•STAGE I - 1x250 MW
•STAGE II - 1X250 MW
•STAGE III - 1X250 MW
•STAGE IV - 1X250 MW
•STAGE V 1X250 MW
•STAGE VI - 1X250 MW
•STAGE VII- 1X660MW(Under construction)
•STAGE VIII- 1X660MW(Under construction)
Total Power Generation - 1500 MW
5. YEAR ACHIVEMENTS
1999-2000 : Meritorious production &
3.74 lacs money
2000-2005 : Gold shield awarded by Ex
President of India Late
Mr. A.P.J. Abdul Kalam.
2005-2006 : Bronze shield awarded by
Ex P.M. of India
Dr. Manmohan Singh.
7. Raw coal from bharat
coal ltd. Dhanbad &
bilaspur(MP)
To SSTPS from gudla
via a single railway
track
Wagon
tippler
hoppersCrusher housebunkers
Raw coal
feeders
Coal mills
(pulverization)
Boiler furnace ( tangential firing
of pulverized coal)
8. STEAM BOILER
The boiler installed in S.T.P.S. are single drum, water tube
naturally circulated over hanged, pulverizing coal firing
with a max.
Continuous steam output of 37 tons/hour at 138 kg/cm2
pressure and 5400C temperature.
Heat transfer section in boiler :
Furnace : Furnace is the primary element part of the boiler
where the thermal energy is obtained by combustion.
9. BOILER:
Flue gases
Boiler water tubes
& various stages
Boiler
furnace
Pulverized
coal
Air from
environment
via draft fans
Ash
handling
plant
DM water
Super
heated
steam
stack
10. BOILER AUXILLARIES
SUPER HEATER: Superheats are meant to raise the
tem. of steam by absorbing heat from flue gases steam.
Reheater: Reheater are used to raise the temp. of steam
from which point the energy had been extracted in H.P.
turbine .
Reheating is continuing till temp. of steam is reaches to
5400C.
Superheaters and reheaters tubes are made of 50 to 75
mm outside diameter.
11. Economizer :
The function of an economizer in a steam-generating
unit is to absorb heat from the flue gases and add this as
sensible heat to fed water. It acts like feed water heater.
The size of economiser tubes are 45 to70mm in outside
diameter .
Air Preheater: Air preheater is a heat exchanger in which
preheating of air done by transferring heat from the flue
gas before supplying to the combustion chamber. For
better combustion the air temp. 250 to 350 is always
desired.
The preheating of air results:
1.Improved combustion
2.Saving in fuel consumption
3.Thermal efficiency.
13. STEAM TURBINE
Turbine is a prime mover in which a shaft is rotate by impact or reaction
of stream upon blades of a wheel.
It converts the potential or kinetic energy of the steam into mechanical
power.
When the working substance is steam it is called the steam turbine.
IMPULSE TURBINE: The passage of steam through moving part of turbine in such a
manner that the pressure at the outlet side of the blade is equal to that at the inlet inside.
Such a turbine is broadly termed as impulse turbine.
IMPULSE REACTION TURBINE: Pressure of the steam
at outlet from the moving blade may be less than that at the inlet side of the blades; the
drop in pressure suffered by the steam during its flow through the moving causes a
further generation of kinetic energy within the blades and adds to the propelling force
which is applied to the turbine rotor. Such a turbine is broadly termed as ‘impulse
reaction turbine’.
18. HIGH PRESSURE TURBINE: The HP turbine consists of 25
reaction stages. The moving and stationary blades are
inserted into appropriately shapes into inner casing and the
shaft.
INTERMEDIATE PRESSURE TURBINE: The steam from HP
turbine after reheating enters the inner casing from above
and below through two inlet nozzles.
The IP turbine consists of 20 reaction stages per flow. The
moving and stationary blades are inserted in appropriately
shaped grooves in shaft and inner casing.
LOW PRESSURE TURBINE: Steam admitted to LP turbine
from IP turbine flows into the inner casing from both sides
through steam inlet nozzles.
19. TWO POLE TYPE; WITH CYLINDRICAL
ROTOR
BASIC PRINCIPLE :FARADAY’s LOW OF
MAGNETIC INDUCTION
COOLING:
STATOR WINDING-DIRECT WATER COOLING
ROTOR WINDING – HYDROGEN COOLING
GENERATOR:
MECHANICAL
ENERGY
ELECTRICAL
ENERGY
