Kota Super Thermal Power Station

1. Welcome to Presentation on
Kota Super Thermal Power Station (KSTPS)
Submitted by : -
Naveen Kumar Saini
7th Sem., EI&CE
(11EEBEI037)
Govt. Engineering College Bikaner
Submitted to:
Pooja Bhardwaj
(Assistant Processor)
EI&CE

2. Kota Super Thermal Power Plant

3. Introduction
• It was established in 1983.
• KSTPS is designed in following stages.
Stage Unit
Number
Installed
Capacity (MW)
Date of
Commissioning
Status
Stage I 1 110 January 1983 Running
Stage I 2 110 July 1983 Running
Stage II 3 210 September 1988 Running
Stage II 4 210 May 1989 Running
Stage III 5 210 March 1994 Running
Stage IV 6 195 July 2003 Running
Stage V 7 195 May 2009 Running
• Total generation capacity is 1240 MW.
• It is located at the left bank of the CHAMBAL River at the upstream of
KOTA BAIRAJ.

4. • Bituminous Coal is used as fuel.
• Its Calorific Value is 3300 K.cal/Kg.
• Coal India Limited supplies coal from its coal mines of coal producing
subsidiaries SECL & NCL to Kota Thermal Power Plant.

5.  General Layout & Basic Idea
 Coal Handling Plant
 Boiler
 Ash Handling Plant
 Steam Turbine
 Electricity Generator
 Cooling System
 Transformer
 Control Panel
Main & Auxiliaries Parts of KSTPS

6. General Layout & Basic Idea
 Fuel & Ash Circuit
 Air & Gas Circuit
 Feed Water & Steam Circuit
 Cooling Water Circuit
Air

7. Coal Handling Plant
Coal Handling Plant can be called the heart of the thermal power plant.
It Can be divided into 3 sections.
Wagon
Unloading
System
Crushing
System
Conveying
System
Wagon Unloading System
•Wagon Tripler unloads the coal from wagon to hopper.
•Hopper is made of iron, is in the form of net.
•Hopper allows to pass coal less than 200mm.

8. Crushing System
Crusher House :- Its main Function is to crush the coal to 20mm. Size.
Two types of crushers in KSTPS
Primary
Crushers
Secondary
Crushers
Primary Crusher:-
• Roll Crusher
Feed Size : 1200 mm.
End Product Size : 500mm
• Rotary Breaker
Feed Coal size : 500mm
End Product size : 0-200mm
 Secondary Crusher:-
It employs a combination of Impact,
shearing, Compression.
Roll Crusher

9. Conveying System:-
Belts are used to convey coal from coal handling plant to furnace.
Conveyor belt specification:-
Belt width : 1400 mm.
Speed : 2.2 m/sec.
Capacity : 750/1350 ton/hr.
No. of conveyor : 38
Total Installed Power : 360 KW

10. Boiler
 Water Tube Boiler:- In this type of boiler water flows inside the
tubes and hot gases flow outside the tubes.
A Boiler (or Steam Generator) is a closed vessel in which water,
under pressure is converted into steam.
(i) Fire Tube Boiler (ii) Water Tube Boiler
 Furnace:- Furnace is primary part of the boiler where the chemical
energy of coal is converted into thermal energy by combustion.

11. Boiler Drum
Its function is to separate
water and steam from
mixture of steam & water
generated in the furnace
walls.
Economizer
An Economizer extracts a part of heat
from the flue gases and uses it for
heating the feed water before it enters
into the steam drum.

12. Air Pre-heater Super heater
Air Pre heaters are employed to
recover the heat from the flue gases
leaving the Economizer & are used to
incoming air for combustion.
A Super heater is a device which
removes the last traces of moisture from
the saturated steam leaving the boiler
tubes & also increases the temperature .
Super heater consists a group of tubes.

13. Ash Handling Plant
In Thermal Plant coal is generally used as fuel & hence the ash is
produced as the byproduct. Ash generated in power plant is about
30-40% of total coal consumption.
Air & Gas Plant
Fuel & Ash
Plant
Air & Gas
Plant
Ash Disposal &
Dust Collection
Plant
Air
(Atmosphere) Air Pre heater Boiler
Boiler Tubes
Flue gases
(Due to
combustion)
Super HeaterChimney Economizer

14. Ash Disposal & Dust Collection Plant
The ash is removed from fly ash hoppers in dry state & it is carried out to
collecting equipment where it is mixed with water & resulting slurry is
discharged.

15. Steam Turbine
Steam Turbine is a machine in which a shaft is rotated steadily by impact
or reaction of current or stream of working substances (Steam , Air,
Water, Gases) upon Blades of a wheel.
Technical Data of Turbines
Rated Output
110MW
Rated Speed
3000 RPM
Clockwise
Direction
Maximum
Steam Pressure
146atm

16.  An electrical generator is a machine which converts mechanical energy
into electrical energy through electro mechanical energy conversion.
Electricity Generator
The generator is driven by directly coupled steam turbine at a
speed of 3000 RPM.
Current : 7720A Frequency: 50Hz
For
generator
(110MW)
Terminals: 6

17. Cooling System
 In KSTPS Hydrogen Cooling System is employed for generator cooling.
 Hydrogen is used Because of its superior cooling properties & we can
eliminate the fire risk because it doesn’t support combustion.
 Thermal conductivity of H2 is 7.3 times of air.

18. Transformer
 Transformer is a static device which is used to change the voltage level
keeping the power & frequency same.
 There are about 83 transformers installed at various places in plant to
operate the auxiliaries.
Generator Transformer A Steps up (16.5KV to 220KV)
Generator Transformer B Steps up (16.5KV to 400KV)
Unit Auxiliary Transformer Steps down (16.5KV to 6.9KV)
Station Service Transformer Steps down(6.9KV to 0.433KV)
Types of Installed Transformer

19. Control Panel
Control Panel I Fan Control Desk
Control Panel II Fuel Control Desk
Control Panel III Steam & Water Control Desk
Control Panel IV Turbine Control Desk
Control Panel V Generator Control Panel
All the Basic Parameters like Temperature of steam & air, Flow of water &
air, pressure, Electricity generation etc. are controlled in Control Panel.