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GURU NANAK DEV ENGINEERING GURU NANAK DEV ENGINEERING GURU NANAK DEV ENGINEERING GURU NANAK DEV ENGINEERING GURU NANAK DEV ENGINEERING GURU NANAK DEV ENGINEERING GURU NANAK DEV ENGINEERING GURU NANAK DEV ENGINEERING
COLLEGE, LUDHIANACOLLEGE, LUDHIANACOLLEGE, LUDHIANACOLLEGE, LUDHIANACOLLEGE, LUDHIANACOLLEGE, LUDHIANACOLLEGE, LUDHIANACOLLEGE, LUDHIANA
SIX WEEKS INDUSTRIAL TRAININGSIX WEEKS INDUSTRIAL TRAININGSIX WEEKS INDUSTRIAL TRAININGSIX WEEKS INDUSTRIAL TRAINING
THERMAL POWER PLANT THERMAL POWER PLANT
OVERVIEWOVERVIEW
At:At:At:At:----
NTPC LimitedNTPC LimitedNTPC LimitedNTPC LimitedNTPC LimitedNTPC LimitedNTPC LimitedNTPC Limited
Badarpur Thermal Power StationBadarpur Thermal Power StationBadarpur Thermal Power StationBadarpur Thermal Power StationBadarpur Thermal Power StationBadarpur Thermal Power StationBadarpur Thermal Power StationBadarpur Thermal Power Station
Badarpur, New DelhiBadarpur, New DelhiBadarpur, New DelhiBadarpur, New DelhiBadarpur, New DelhiBadarpur, New DelhiBadarpur, New DelhiBadarpur, New Delhi
By:By:By:By:----
Pushkar ShankerPushkar ShankerPushkar ShankerPushkar Shanker
D3 D3 D3 D3 –––– ElectricalElectricalElectricalElectrical
Roll No. Roll No. Roll No. Roll No. –––– 6278627862786278
Univ Univ Univ Univ –––– 6140508670614050867061405086706140508670
OVERVIEWOVERVIEW
ABOUT NTPC LIMITEDABOUT NTPC LIMITED
• Formally known as National Thermal
Power Corporation Limited.
• It is among the world’s largest and most
efficient power generation companies.
• In Forbes list of World’s 500 Largest
Companies for the year 2007, NTPC
occupies 411th place.
• NTPC has installed capacity of 29,394
MW.
• It as
• 15 coal based power stations (23,395
MW),
• 7 gas based power stations (3,955
MW) and
ABOUT NTPC LIMITEDABOUT NTPC LIMITED
MW) and
• 4 power stations in Joint Ventures
(1,794 MW).
�Power Plant (also referred to as Generating
Station or Power Station) is an industrial
facility for the generation of electric power.
�At Power Plants, generators are used as
ABOUT POWER PLANTABOUT POWER PLANT
�At Power Plants, generators are used as
rotating machine that converts mechanical
energy into electrical energy by creating
relative motion between a magnetic field and
a conductor.
ABOUT BADARPUR THERMAL ABOUT BADARPUR THERMAL
POWER STATIONPOWER STATION
� The Badarpur Thermal Power Station has five
units of Steam
Turbine-Driven
Generators,
which has a totalwhich has a total
capacity of
705MW.
A top view of Badarpur
Thermal Power Station,
Badarpur, �ew Delhi
ABOUT BADARPUR THERMAL ABOUT BADARPUR THERMAL
POWER STATIONPOWER STATION
� The fuel being used is Coal, which is supplied
from the Jharia Coal Field in Jharkhand.
�Water supply is given from the Agra Canal.
Sr. *o. Capacity *o. of Generators Total Capacity
1. 210 MW 2 420 MW
2. 95 MW 3 285 MW
Total 705 MW
Table: Capacity of Badarpur Thermal Power Station, New Delhi
THERMAL POWER PLANTTHERMAL POWER PLANT
� In a Thermal Power Plant, one of coal, oil or
natural gas is used to heat the boiler to
convert the water into steam.
�The steam is used to turn a turbine, which is�The steam is used to turn a turbine, which is
connected to a generator.
�When the turbine turns, electricity is
generated and given as output by the
generator, which goes to the high tension
transformer then supplied to the consumers
through high-voltage power lines.
THERMAL POWER PLANTTHERMAL POWER PLANT
OPERATION OF COALOPERATION OF COAL--FIRED FIRED
POWER PLANTPOWER PLANT
� There are basically three main units of
a thermal power plant:
1. Steam Generator or Boiler
THERMAL POWER PLANTTHERMAL POWER PLANT
2. Steam Turbine
3. Electric Generator
�A boiler or steam generator is a device used
to create steam by applying heat energy to
water.
It is a rectangular furnace about 50 ft (15 m)
STEAM GENERATOR OR STEAM GENERATOR OR
BOILERBOILER
� It is a rectangular furnace about 50 ft (15 m)
on a side and 130 ft (40 m) tall.
� Its walls are made of a web of high pressure
steel tubes about 2.3 inches (60 mm) in
diameter.
�Pulverized coal is air-blown into the furnacefrom fuel nozzles at the four corners and itrapidly burns, forming a large fireball at thecenter.
STEAM GENERATOR OR STEAM GENERATOR OR
BOILERBOILER
�The thermal radiation of the fireball heats thewater that circulates through the boiler tubesnear the boiler perimeter.
�The water circulation rate in the boiler isthree to four times the throughput and istypically driven by pumps.
STEAM GENERATOR OR STEAM GENERATOR OR
BOILERBOILER
Schematic Diagram of a Steam Generator or Boiler
STEAM GENERATOR OR STEAM GENERATOR OR
BOILERBOILER
�As the water in the boiler circulates it absorbsheat and changes into steam at 700°F or370°C.
� It is separated from the water inside a drum at� It is separated from the water inside a drum atthe top of the furnace.
�The saturated steam is introduced intosuperheat pendant tubes.
�Here the steam is superheated to 1,000 °F or540 °C to prepare it for the turbine.
STEAM TURBINESTEAM TURBINE
�Steam turbines are used to drive thegenerators, which produce electricity.
�The turbines are driven by steamgenerated in 'Boilers' or 'SteamGenerators‘.Generators‘.
�Energy in the steam after it leaves theboiler is converted into rotational energyas it passes through the turbine.
STEAM TURBINESTEAM TURBINE
�The turbine normally consists of threestages with each stage consisting of astationary blade (or nozzle) and arotating blade.
STEAM TURBINESTEAM TURBINE
�Stationary blades convert the potentialenergy of the steam (temperature andpressure) into kinetic energy (velocity)and direct the flow onto the rotatingblades.
�The rotating blades convert the kineticenergy into forces, caused by pressuredrop, which results in the rotation of theturbine shaft.
STEAM TURBINESTEAM TURBINE
�The turbine shaft is connected to agenerator, which produces the electricalenergy.
�The rotational speed is 3000 rpm.
TURBINE GENERATORTURBINE GENERATOR
�The generators are used to convertmechanical power, delivered from theshaft of the turbine, into electricalpower.
TURBINE GENERATORTURBINE GENERATOR
�The mechanical energy from the turbineis converted by means a
� rotating magnetic field
� produced by direct current in the copper windingof the rotor or field,
�which generates three-phase alternating currentsand voltages in the copper winding of the stator(armature).
�The stator winding is connected toterminals, which are in turn connected tothe power system for delivery of theoutput power to the system.
TURBINE GENERATORTURBINE GENERATOR
�At Badarpur Thermal Power Station,
� 2-pole,
� 3000 rpm,
� 50 Hz generators are used
� of capacities 210 MW and95 MW.
A 95MW Turbine
Generator at
Badarpur Thermal
Power Station,
�ew Delhi
TRANSFORMERSTRANSFORMERS
�Step-Up the Voltage from
� 10.5kV to 220kV for 95 MW Generators.
� 15.75kV to 220kV for 210MW Generators.
�220kV output is transmitted to theswitchyard for further transmission.switchyard for further transmission.
COAL HANDLING DIVISIONCOAL HANDLING DIVISION
�The processing of coal before it is firedto the furnace, comes under the coalhandling division of the power plant.
�The Coal Handling Division of BTPShas the following parts:has the following parts:
� Railway Wagon Tripler
� Conveyor
� Coal Storage Ground
� Separator
� Pulverizer or Bowl Mill
COAL HANDLING DIVISIONCOAL HANDLING DIVISION
Railway Wagon Tripler Conveyor
Coal Storage Ground Separator
COAL HANDLING DIVISIONCOAL HANDLING DIVISION
�Pulverizers are used to crush it into finepowered particles.
Fired to the Boiler Furnace
Pulverizer
Boiler Furnace for combustion
THANK YOU
ANY QUERY??ANY QUERY??
PUSHKAR SHANKER
D3 – ELECTRICAL
ROLL NO. – 6278
UNIV - 6140508670