55481377 ankit ktps training

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Kota Thermal Power Station

Training Session May,09 ± June,09

Submitted By:-

Ankit Kulshreshtha

EC-1

Roll No. 06/N/028



Industry at a glance :-

Location:- On the bank of river Chambal in Kota

(Rajasthan)

Produce electricity by coal

Having 6 units (presently) producing continuouslyProduce almost 1024 MW energy ,second to

Suratgardh power plant

Get coal from Madhya Pradesh coal fields

Have 4 big 180 meters height chimneys to controlsuspended particles

Record of having 85% power factor, get clearance

from CEA



Unit Details of KTPS

Units Date of synchronization

on oil

Date of synchronization on

coal

Date of declaration

of Commercial

Operation

Unit-1 17.1.83 20.1.83 01.04.83

Unit-2 17.7.83 05.8.83 01.04.84

Unit-3 25.9.88 11.12.88 11.03.89

Unit-4 01.5.89 16.10.89 06.03.90

Unit-5 26.3.94 11.10.94 18.07.95

Unit-6 30.07.2003 30.7.2003 01.08.2004



Basic Process of Thermal Power plant



The KTPS working is based on four

Sections

Coal and Ash

Air and gas

Feed water and steam

Cooling water



Coal and ash

Air and gas

Feed w

ater

Coolingtower



Detail Working of KTPS



Coal Handling

Coal is supplied

Through railTrack by own trains

By wagon tripler The coal is drawn

Into underground hopper

By means of twoBelts coal is transferred

To the Conveyer

Now coal is transferred toCrushing house and

storedto bunkers

Now coal is fed to MillsWhere coal is

Crushed in pulverizedform

Coal is takento Coal nozzle

In wind box assembly

From nozzlecoal Is

discharged tofurnace



There are two types of Mills in KSTPS

Bowl Mills-

Grinding chambers in form of Bowl

Centrifugal force is used to movecoal against grinder

FD fan is used to dry the coal &

drive it to furnace

Tube mills-

Constantly rotating tube around 20rpm

Side at which gas gear is mountedis known as driving end

3 balls of diff. size is used FD fan is used to dry the coal &

drive it to furnace

Here hot air is used to remove moisture from coal and cold air is used to keep temp below flash point

Power consumed by Coal Mill Motor is 340 MW. There are total 8 motor are installed 6 running 2 on

stand by

PA fans = 820 KwID fans = 850 kw

FD fans = 300 kw



Burner :- Tangential type

discharge the fuel air mixture tangentially

to an imaginary circle in the center of the

furnace

burners are placed at the four corners of

the furnace

Firing Mechanism-Fuel is introduced from

wind nozzle located at lower corner inside

the boiler



Boiler :- A apparatus where water is being converted into steam

The water in the tube of boiler get vaporized by heat energy &steam is generated

The boiler weighs about 6000 Mega tons ,height about 50 to 60meters

Whole height is divided in 13 diff. levels as per burning materials



Boiler Auxileries- To increase efficiency

Economiser ±Used to preheat boiler feed water, before entering to boiler

Deriving heat from the flue gases

The economizer is placed in the main flue gas path between the boiler and the chimney.The waste flue gases flow outside the tubes and heat is transferred to the water flowing inside

Air Preheater ±Tubular type heat exchanger

The flue gases coming out of the economizer is used to preheat the air before supplyingit to the combustion chamber. An increase in air temperature of 20 degrees can beachieved by this method. The pre heated air is used for combustion and also to drythe crushed coal

Useful to increase efficiency (20% flue gas incrs 1% capacity)

In KTPS Regenerative type is used (Having rotor move at 2.4 RPM )

Boiler Drum ±To separate water from steam

It is located 54 meter from ground

Feed water coming out of Economiser enter to the Boiler Drum



Turbine :- A machine which convert Kinetic energy

to Mechanical energy

Steam is passedthroughnozzle

Steam nowfalls onTurbine blade

movesthe turbine

Parts of Turbine

A.) Nozzle

B.) Blade

C.) Rotor shaft

Flow chart

for turbine

The rotor shaft is made of steel, blade is fixed on it

Steam is entered from left and right inlets

Two stage turbine is used

Steam is recycled



Auxiliaries of turbine :-

Condenser ±Here steam is exited by creating vaccum or very low atm pressure ,the cooling water is directly taken fromchambalrequirement ± as discharge from LPT is Liquid+vapour

Hotwell ±It is located below the condenser ,to store condensate ,tank of size 5m in depth & 2 to 3m in dia.makeup of leakage of demineralised water also processed

Deaerator ±It removes the dissolved gases like O2 , CO2 etc by means of pagging.requirement- As dissolved gases may corrode Boiler Drum

High Pressure Heater ±It raise the temp & pressure of water which is requiredfor further processing i.e. 165 kg/cm and 2500 C



Generator :-Machine that coverts Mechanical energy to the

Electrical energy

Principle-Based on faraday¶s law of electromagnetic induction

Statistics of generator at KTPSKW : 210 Kw

PF : 0.85

KVA : 247000

RPM : 3000

Hz : 50hz

Coolant :Water + H2



Parts of Generator

Stator Frame ±Welded construction of plate

Used to contain and support the stator core winding, also provide H2 as coolant

Stator core ±Built of Segmented ,annealed ,insulated ,high quality ,Silicon Sheet ,to give min electrical

lossStator Bars ±Each stator half coil bar is composed of alternate strip of double glass covered and bars

copper transposed in straight position, each strip occupies every radial position

Rotor ±It is forged on a single piece of special Cr, Ni & Mo alloy steel ,to get required mech prop.

Rotor WindingIt consist of two poles each having concentric coils of several turns

Semi hold silver alloy copper of rectangular cross section is used, insulated by epoxy

Glasses laminated stripes CONT««



Rotor bearing-Specially designed bearing electronic apparatus to indicate the location of unbalance

pole in magnitude and direction.

Slip Ring ±Made of forged steel they are located side by side on exciter side of generator shaft

Generator Terminal Bushing ±Have six output 3 larger and 3 shorter ,coming out of bottom, short terminals used for

External connection ,conduction is through a Cu tube ,H2 as coolant is used.

Bush Gear Assembly ±Made of natural composition of Graphite and winding materials, have low friction , self lubricating



Control Room:- Where controlling of various equipment taken

place

Setup is done by Instrumentation Limited, kota

From one unit control 2 adjacent unit can be controlled + local CS for boilers ,turbo jets,boilers

CR shows and record various parameters

Automatic Scheme for feed water regulation and reheat temp computation is provided

One CR have five desks as follows :-

CP ± I

1 FAN CONRTOL DESKa. Induced Fan draft

b. Forced Fan

c. Primary air Fan

2. PRESSURE DESK

a. Furnace pressure

b. Primary Air Heater Pressure

CP ± II

1 FUEL CONTROL DESKa. Coal air flow

b. oil pressure

c. temp of mill

d. flow of air

e. differential pressure of mill CONTD«..



CP ± III

1. STEAM AND WATER DESK

a. Drum Level control

b. Flow of Steam and Water

c. Pressure of steam and water

d. Temp of steam and water

CP ± IV

1. TURBINE DESK

a. Pressure Control

b. Load control

c. Speed control

d. Valves control

CP ± V

1. GENERATOR CONTROL DESK

a. Voltage Control MVAR

b. Stator rotor Temp

c. For stator cooling a) Water

b) H2



Facts about KTPS

Kota Thermal Power Station has performedoutstanding, from the very beginning, produced

outstanding results and has continuously

earned cash prizes and shields. Power station

has received meritorious productivity awards

given by the Ministry of power, Government of India, in the years 1984,1987, 1989, 1991 and

continuously thereafter.

The 6th unit of Kota Super TPS was

commissioned and synchronized with the gridon 30.7.03 and full load was achieved on coal

firing in less than 10 Hrs. The project was

completed in 24 months which is a national

record for this type of generating unit.



Conclusion :-

K.S.T.P.S. is the main super thermal power plant

located in principle industry city, Kota.

It has established a record of excellence &

earned various productivity award from TheMinistry of power, Government of India.



Thank youQuery Please

55481377 ankit ktps training

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