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, LUDHIANA COLLEGE, LUDHIANA COLLEGE, LUDHIANA COLLEGE, LUDHIANA COLLEGE, LUDHIANA COLLEGE, LUDHIANA COLLEGE, LUDHIANA COLLEGE, LUDHIANA SIX WEEKS INDUSTRIAL TRAINING SIX WEEKS INDUSTRIAL TRAINING SIX WEEKS INDUSTRIAL TRAINING SIX WEEKS INDUSTRIAL TRAINING THERMAL POWER PLANT THERMAL POWER PLANT OVERVIEW OVERVIEW At: At: At: At:- - - NTPC Limited NTPC Limited NTPC Limited NTPC Limited NTPC Limited NTPC Limited NTPC Limited NTPC Limited Badarpur Thermal Power Station Badarpur Thermal Power Station Badarpur Thermal Power Station Badarpur Thermal Power Station Badarpur Thermal Power Station Badarpur Thermal Power Station Badarpur Thermal Power Station Badarpur Thermal Power Station Badarpur, New Delhi Badarpur, New Delhi Badarpur, New Delhi Badarpur, New Delhi Badarpur, New Delhi Badarpur, New Delhi Badarpur, New Delhi Badarpur, New Delhi By: By: By: By:- - - Pushkar Shanker Pushkar Shanker Pushkar Shanker Pushkar Shanker D3 D3 D3 D3 – – – Electrical Electrical Electrical Electrical Roll No. Roll No. Roll No. Roll No. – – – 6278 6278 6278 6278 Univ Univ Univ Univ – – – 6140508670 6140508670 6140508670 6140508670 OVERVIEW OVERVIEW
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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
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
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.