1. A SEMINAR PRESENTATION
ON
Kota Super thermal power
station
ELECTRICAL ENGINEERING
SKIT, JAIPUR
Presented By :Rohit Pareta

3. 




Kota Super Thermal Power Station is
coal based steam plant.
It Is Located on the left bank of
Chambal river in Kota (Rajasthan).
Total generation capacity is
1240MW.
Required 250 hectares land.
The project was proposed By the
Central Electricity Authority and
production start in 1983.

4. Good transportation Network.
Abundant amount of water.
Nearest to load center.
Good geographical features to built
a plant.
Availability of land to build new
units .
Availability of both skilled person
and labor.

5. Synchronising Date of units
Stage
Unit No.
Capacity(MW)
Synchronising
Date
Cost(Rs. Crore)
I
1
110
17.1.1983
143
2
110
13.7.1983
3
210
25.9.1988
4
210
1.5.1989
III
5
210
26.3.1994
480
IV
6
195
31.7.2003
635
V
7
195
30.5.2009
880
II
480

6. Basic Plant Layout

7. FUELS
(A) Coal.
(i) Type :
Stack Coal
(ii) Calorific Value:
4450 K.Cal./Kg.
(iii) Quantity Used.:
3074 tonnes per day.
(iv) Ash contents.:
40%
(v) Type of Handling.
Belt Conveyor.
(vii) Type of disposal of Ash.
a) Fly Ash.
b) Bottom Ash. Wet.
(B) OIL
(i) Type:
Furnace Oil.
(ii) Qty. used:
As per requirement &
conditions.

8. Main Equipments
•
•
•
•
•
•
•
•
•
Coal Handling Plant
Boiler
Turbine, Generator
Super Heater & Re- Heater
Cooling System
Water Treating Plant
Ash Handling Plant
Control Room
Advantages & Disadvantages

9. OVERVIEW OF COAL HANDLING PLANT
Row coal from Bharat
coal ltd. Dhanbad &
bilaspur(MP)
To KSTPS from Gurla via a
single railway track
Wagon trippler
Coal size reduced by 20 mm
Bunkers
Crusher
house
Hoppers
Raw coal
feeders
CONVEYING
SYSTEM
Coal mills
(pulverization)
BOILER FURNACE

10. COAL HANDLING PLANT
• The Coal Received from BHARAT COKING COAL LTD. DHANBAD
& SOUTH EASTERN COAL FIELD LTD. BILASPUR(M.P.) by train.
• Everyday 3- 4 trains of coal are unloaded, each train
consists 58 wagons.
•Specification of conveying system:
oBelt width : 1400mm
oSpeed : 2.2m/sec
oTotal install power : 360kw
oCapacity : 1350/750 ton/hr
oNo. of conveyor: 38

11. Boiler
• It is a closed vessel in which water under
pressure is converted into steam.
• Hot water or steam used to transfer heat to a
process.
• A boiler is always designed to absorb
maximum amount of heat released in process
of combustion.
• Furnace:- It is primary part of boiler where the
fuel is burnt to liberate the heat energy.

12. Overview of Boiler
DM water
Boiler water tubes
& various stages
Super
heated
steam
Flue gases
Air from
environment via
draft fans
Pulverized coal
Boiler furnace
Ash handling
plant

13. Types of Boilers
• Fire tube boiler
• Water tube Boiler

14. Boiler at KSTPS

15. Super heater
• Super heater consists
group of tubes.
• The tubes are heated by
the heat of combustion
gases during their passage
from furnace to chimney,
so the temperature
increased.
• Super heater remove the
moisture from the steam
leaving from the boiler
tubes.
Economizer
• Economizer is a device
which recover the heat
from the flue gases on
their way to chimney.
• It increases the 10-12%
efficiency of the plant.

16. Super Heater and Economiser

17. Air Pre-heater
• Function- To raise the
tempreatur of air.
• Benefits- Increase the
efficiency of plant.
• Type- Plate, Tubular,
Regenrative.
• KSTPS uses
Regenerative type.

18. STEAM TURBINE
BOILER & SUPERHEATER
STEAM AT
545 C
STEAM AT
535 C
H P TURBINE
REHEATER
M P TURBINE
STEAM AT
545 C
STEAM AT
535 C
L P TURBINE

20. TECHNICAL DATA OF 110 MW TURBINE
•
•
•
•
1.
2.
3.
4.
Rated output
: 110 MW.
Economic output
: 95 MW.
Rated speed
: 3000 rpm
Direction of rotation viewing from : Clockwise
the front bearing pedestal.
• 5. Rated temperature of steam before :
535oC
the stop valve.
• 6. Maximum temperature of steam before : 545oC
the stop valve.

21. TECHNICAL DATA OF 210 MW
TURBINE
•
Rated Output
:
210 MW.
•
Rated Speed.
:
3000 rpm.
• Main steam pressure.
:
150 Kg./Cm2
• Main steam temperature.
:
535oC.
• Reheat steam temperature.
:
• Weight of turbine.
:
• Overall length.
:
535oC.
475 T approx.
16.975 Mtrs. approx.

22. Cooling System
• In KSTPS hydrogen cooling
system is employed for generator
cooling.
• Hydrogen is used because of its
superior cooling properties & low
density.
• Thermal conductivity of H2 7.3
times of air.
• Seal oil system are used in turbine
for less friction in bearing.
• Water cooling also used for any
kind of fire.

23. WATER TREATMENT PLANT
The principle problem in high pressure boiler are
corrosion and steam impurities. These impurities
form deposite over turbine blades and nozzeles.
Corrosion costs power station crores rupees in
repair.

24. Process flow sheet of pretreatment
plant
Chlorine Lime Alum
Raw
Water
Clarifier
CWST
Raw Water
from
Reservoir
Storage
Tank
Pressure
Filter
DMST

25. Water Treatment Plant
 Pressure filter removes
undisclosed impurities from
raw water.
 Carbon filter removes excess
chlorine from clarified
water.
 D.M. plant removes dissolved
impurities from clarified
water.
 Conductivity ,pH & silica
content of this water must be
checked time to time.

26. Water Flow
B
O
I
L
E
R
B.F.P
Treatment
plant
Raw Water
ECONOMIZER
STEAM
C
O
N
D
E
N
S
E
R
COOLING
HOT WATER

27. ASH HANDLING PLANT
This plant can be divided into three sub plants as follows :-
1)Fuel and Ash Plant:It is specially designed for bottom ash and fly ash in
electro static precipitator economizer and air preheaters hoppers.
2)Air and Gas Plant:The flue gases after passing through the ElectroStatic Precipitator is exhausted through chimney.

28. 3) Ash Disposal and & Dust Collection
Plant:Dry free fly ash is
collected in two
number of 31 fly ash
hopper which are
handled by two
independent fly
ash system.

29. ASH HANDLING
ID Fan
Boiler
ESP
Dry Ash
water
Fly Ash
To coal mill
To furnace
wet ash
A
P
H
PA Fan
FD Fan

30. Fly ash utilization
1). FLY ASH:
• Fly ash is used for making Cement and Bricks.
2). BOTTOM ASH:
• Used for increase the fertility of soil.
• Construction of Roads

31. Steam pressure &
control desk
Turbine desk
Fan control
desk
Fuel control
desk
Generator
control
desk

33. KSTPS supplies power to…..
•
•
•
•
•
•
220 KV GSS Sakatura
JAIPUR (Hirapura & Sanganer GSS)
BYAWAR
Power Grid Corporation of India
JHALAWAR(Modak)
10% use in auxiliary supply.

34. Advantages
• The fuel used is quite cheap.
• Less initial cost as compared to other generating
plants.
• It can be installed at any place irrespective of the
existence of coal. The coal can be transported to the
site of the plant by rail or road.
• It require less space as compared to Hydro power
plants.
• Cost of generation is less than that of diesel power
plants.

35. Disadvantages
• It pollutes the atmosphere due to production
of large amount of smoke and fumes.
• It is costlier in running cost as compared to
Hydro electric plants.
• The overall efficiency of thermal power plant
is less then 40 %.
• Disposal of ash is major problem.

36. Thank You !!!

37. Queries….???