Suratgarh Thermal Power Station is a 1500 MW coal-fired power plant located in Rajasthan, India. It has 6 existing 250 MW units and 2 new 660 MW units under construction. The document provides details about the plant's layout, equipment, and processes. Key components discussed include the boiler, turbines, condenser, coal and ash handling systems, and generator. The plant uses a once-through boiler design operating at high pressure and temperature to produce steam that drives steam turbines connected to the generator, producing electricity. Ash is removed from the boiler using a hydraulic system and disposed of properly.

1. A PRACTICAL TRAINING
SEMINAR
ON
SURATGARH SUPER THERMAL POWER
PRESENTED BY:
MUKESH KUMAR
VII SEM. (ELECTRICAL ENGG.)
11ESKEE066
STATION
SUBMITTED TO
Mrs. RIDA QURESHI
Mr. MANISH NAULAKHA

2. CONTENTS
1. Introduction
2. Land
3. Water conducting system
4. Block diagram of thermal power plant
5. Boiler
6. Economizer
7. Super heater and Reheaters
8. Air preheaters
9. Turbines
10. Condenser
11. Coal and ash handling plants
12. Generator

3. Introduction
1. Suratgarh thermal power station is the first super
thermal power Station of Rajasthan with total
installed capacity of 1500 MW.
2. Suratgarh super thermal power station is located
27 km away from Suratgarh town in
Ganganagar Dist. on the left bank of IGNP at Up
Stream of Suratgarh Barrage.
3.This station is operated and maintained by Rajasthan
Vidhyut 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. LAND :
Total Land 5020 BIGHA
Plant Area 3810 BIGHA
Colony Area 431 BIGHA
Railway Site 425 BIGHA
Water conducting 354 BIGHA
system

6. WATER CONDUCTING SYSTEM:
a) Length of Intake Canal = 1.6 Km
b) Capacity of each Decilting Pump =
3.14 Kw*3(30M³/Hr.)
c) Intake Pump House =
90 Kw*6(1250M³/Hr.)Each Pump
d) Raw Water Pump House =
7 lacks M³

7. BLOCK DIAGRAM OF THERMAL POWER
PLANT

8. BOILER

9. BOILER PARAMETERS:-
•Height of boiler 60 meters
•Height of chimeny 220 meters
•Foundation depth 8.5 meters
•Furnace Depth 11506 meters
•Furnace Width 15.240 meters
•Total Water Flow 780.5 T/Hr.
•Steam Flow 740.8 T/Hr.
•Steam Temperature 540ºC
•Coal Requirement for 250MW 160 T/Hr.
•Primary Air for pulverized fuel 268.4 T/Hr.
•Secondary Air for ignition (Combination) 647.0 T/Hr.
•Total Air 915.5 T/Hr.
•Steam Pressure 156 Kg /cm²

10. • Flue gases coming
out of the boiler
carry lot of heat.
An economizer
extracts a part of
this heat from flue
gases and uses it
for heating feed
water. This use of
economizer
results in saving
coal consumption
and higher boiler
efficiency
Economizer

11. Super heater and Reheaters
• Super heater :
• Super heater is a component
of a steam-generating unit in
which steam, after it has left
the boiler drum, is heated
above its saturation
temperature
• Reheater : Some of the
heat of superheated steam
is used to rotate the
turbine where it loses some
of its energy

12. Air preheaters
• After flue gases leave economizer, some further heat can
be extracted from them and used to heat incoming heat.
Cooling of flue gases by 20 degree centigrade increases the
plant efficiency by 1%.
• Air preheaters may be of three types
 Plate type
 Tubular type
 Regenerative type

13. TURBINE
In a Thermal Power Plant generally 3 turbines are used to increase the efficiency.
.
High Pressure Turbine(HPT): The superheated steam is directly fed to this
turbine to rotate it.
Intermediate Pressure Turbine(IPT): The out put from the HPT is reheated
In a reheated(RH) and used to rotate IPT .
Low Pressure Turbine(LPT): The Exhausted steam from the IPT is directly
fed to rotate the shaft of LPT.
HPT HPT IPT IPT LPT LPT
Generator
RH
Steam
Steam
Shaft
Super Heater
Condenser

14. 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.

15. TURBINE SPECIFICATION
HP turbine having 25 Blades &
Single flow.
IP turbine having 17 Blades &
Single flow.
LP turbine having 8 Blades&
Double flow.
Inlet/Outlet Pressure And Temperature
1. H P Turbine Steam Inlet/outlet pressure -150 Kg/Cm²/39.69 Kg/Cm²
A inlet/outlet Temperature - 537*C/346*C
2 . I P Turbine Steam Inlet pressure - 35.64 Kg/Cm²
a. Outlet pressure - 6.83 Kg/Cm²
b.Exhaust Temp. - 305*C
3. LP Turbine Steam Inlet pressure - 6.83 Kg/Cm²
a.Exhaust Temp. - 49*C

16. MOVING BLADES

18. FIXED BLADES

19. Rotor Layout

20. CONDENSER
The condenser does the job of condensing the steam exhausted from
turbine.
Steam after rotating steam
turbine comes to
condenser. Condenser
refers here to the shell and
tube heat exchanger (or
surface condenser)
installed at the outlet of
every steam turbine in
Thermal power stations of
utility companies
generally.

21. Condenser Used In S.S.T.P.S.
In S.S.T.P.S. surface condenser is used. A surface
condenser consists of an airtight cylindrical shell having
a chamber at each end. Water tube extends between the
chambers. The shell is made of welded steel plate
construction and the tubes are made of copper zinc alloy.
Cooling water flow through the tubes. The steam is
admitted from the top and gets condensed due to contact
with the tube surface. The condensate leaves from the
bottom. For efficient operation, the temperature rise in the
cooling water passing through the condenser should be
around 10degree C.

22. COAL & ASH HANDLIG PLANT
1. COAL HANDLING PLANT (CHP)
The function of CHP is automatic feeding of coal
to the boiler furnace. The coal is transported to
the power station by rail. One rail (rack) consists
of 58 or 59 boxes with 60 – 70 tones coal loaded in
each box. There are 6-7 racks of coal are
used.About 18000 tonnes coal required per day for
whole unit.

23. The main equipments of CHP are:
1. Wagon trippler: - A tripler is a equipment that is used for unloading the
coal from box by lifting and tilting the box.
2. Side arm charger: - It is used for pushing or carrying the loaded or empty
boxes.
3. Conveyors: - Different sized and diff. Capacity conveyors are installed
for feeding the coal from Tripler to bunkers.
4. Crusher: - Crushers are provided for crushing the coal in desired sizes.
5. Primary crusher : 2
6. Secondary crusher : 8
7. Stacker cum re-claimer : 2
8. Stacker/Reclaimer: - The stored coal is stacked or reclaimed by the
stacker/reclaimer.
9. Bunkers: - Crushed coal is led to the mills via canonical shaped bunkers.
10.Coal feeders: - Coal feeder delivers the coal from the bunkers to the mill.
11.Pulverization of coal:- Pulverizing mills In modern TPS’s coal is
pulverized i.e. ground to dust likesize. Pulverization is a means of
exposing a large surface area to the action oxygen and consequently
helping the combustion. mill used for one unit in which one standby. Mill
is 4.7met in dia. &7.2 met in length.

24. Raw coal from bharat coal
ltd. Dhanbad &
bilaspur(MP)
To SSTPS from gudla via a
single railway track
Wagon
tippler
bunkers Crusher house hoppers
Raw coal
feeders
Coal mills
(pulverization)
Boiler furnace ( tangential firing of
pulverized coal)

25. Useful Heat Value Of Different Grade Of Coal.
GRADE U.H.V
A >6200 Kcal/kg
B 5600-6200 kcal/kg
C 4940-5600 kcal/kg
D 4200-4940 kcal/kg
E 3360-4200 kcal/kg
F 2400-3360 kcal/kg
U.H.V = 8900-138[A+M]
Where A=% of ash
M =% Inherent moisture

26. 2. ASH HANDLING PLANT (AHP)
Coal contains a considerable amount of ash. The
percentage of ash in the coal varies from about 5% in good
quality coals to about 40% in poor quality coals.
Generally poor quality coal is used in steam power plant,
so the plant produces hundred tones of ash daily.
For removal of ash from the boilers and its disposal to the
suitable site is quite difficult.
 Ash handling comprises the following operation:
1. Removal of ash from the furnace ash hoppers.
2. Transfer of ash to a fill or storage
3. Disposal of stored ash.

27. In S.S.T.P.S. Hydraulic System Is Used For Ash
Handling.
Hydraulic system:
In this system stream of water carries
ash along with it in a Closed channel and disposes it of
to the proper site. This is the healthy clean dustless and
completely enclosed system.
In this system the hoppers below the
boilers are fitted with water nozzles both at the top and
on sides. The top nozzles quench the ash while the side
ones provides the driving force for the ash. The ash and
water then flow along a trough to a receiving hopper or
sump where the ash is separated from the water. The
water is used again while the ash is sent out through
the carriages.

28. GENERATOR:
MECHANICAL
ENERGY
ELECTRICAL
ENERGY
 TWO POLE TYPE; WITH CYLINDRICAL ROTOR
 BASIC PRINCIPLE :FARADAY’s LOW OF MAGNETIC
INDUCTION
 COOLING:
 STATOR WINDING-DIRECT WATER COOLING
 ROTOR WINDING – HYDROGEN COOLING

29. Generator
The Synchronous Generator is used to Generate power by connecting the shaft of the
Turbine to the shaft of the generator which cuts the magnetic flux producing Emf.
• The Generated Voltage will generally 11KV to 20 KV max.
• The Generated Voltage is stepped up by connecting Step up transformer and is
transmitted and is also used for Auxiliary purposes.
Bus Duct
Generator Transformer
20KV to 400KV
SYNCHRONOUS
GENERATOR
UAT
20Kv to 6.KV
Unit Auxiliary Transformer: This transformer is used to step down the produced voltage and
use for Auxiliary purpose.