A SEMINAR PRESENTATION ON
SURATGARH SUPER THERMAL POWER PLANT
By: RAHUL DABI
MECHANICAL FINIAL YEAR 12ESOME042
2015-2016
SURATGARH THERMAL POWER PLANT
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INTRODUCTION
1. Suratgarh thermal power station is the first super thermal power Station of Rajasthan with total installed capacity of 1500 MW and 93% PLF.
2. Suratgarh super thermal power station is located 27 km away from Suratgarh town in shri Ganganagar Dist.
3.This station is operated and maintained by ‘Rajasthan vidyut Utpadan Nigam Limited’.
S.S.T.P.S. is designed in six stages•STAGE I - 1x250 MW•STAGE II - 1X250 MW•STAGE III - 1X250 MW•STAGE IV - 1X250 MW•STAGE V 1X250 MW•STAGE VI - 1X250 MW•STAGE VII- 1X660MW(Under construction)•STAGE VIII- 1X660MW(Under construction)Total Power Generation - 1500 MW
YEAR ACHIVEMENTS 1999-2000 : Meritorious production &
3.74 lacs money2000-2005 : Gold shield awarded by Ex
President of India Late Mr. A.P.J. Abdul
Kalam.2005-2006 : Bronze shield awarded by Ex P.M. of India
Dr. Manmohan Singh.
BLOCK DIAGRAM OF POWER PLANT
Raw coal from bharat coal ltd.
Dhanbad & bilaspur(MP)
To SSTPS from gudla via a single railway
track
Wagon tippler
hoppersCrusher housebunkers
Raw coal feeders
Coal mills(pulverization)
Boiler furnace ( tangential firing of pulverized coal)
STEAM BOILER
The boiler installed in S.T.P.S. are single drum, water tube naturally circulated over hanged, pulverizing coal firing with a max. Continuous steam output of 37 tons/hour at 138 kg/cm2
pressure and 5400C temperature.
Heat transfer section in boiler : Furnace : Furnace is the primary element part of the boiler
where the thermal energy is obtained by combustion.
BOILER:
Flue gases
Boiler water tubes& various stages
Boiler furnace
Pulverized coal
Air from environment via draft fans
Ash handling
plant
DM waterSuper heated steam
stack
BOILER AUXILLARIES
SUPER HEATER: Superheats are meant to raise the tem. of steam by absorbing heat from flue gases steam.
Reheater: Reheater are used to raise the temp. of steamfrom which point the energy had been extracted in H.P. turbine . Reheating is continuing till temp. of steam is reaches to 5400C.Superheaters and reheaters tubes are made of 50 to 75mm outside diameter.
Economizer :The function of an economizer in a steam-generating unit is to absorb heat from the flue gases and add this as sensible heat to fed water. It acts like feed water heater. The size of economiser tubes are 45 to70mm in outside diameter .Air Preheater: Air preheater is a heat exchanger in which preheating of air done by transferring heat from the flue gas before supplying to the combustion chamber. For better combustion the air temp. 250 to 350 is always desired.The preheating of air results:1.Improved combustion2.Saving in fuel consumption3.Thermal efficiency.
Flow of steam
Boiler tubes
Boiler drum
Super heaters & reheater
economiser
condenser
FWP
turbine
DM water plant
STEAM TURBINETurbine is a prime mover in which a shaft is rotate by impact or reaction of stream upon blades of a wheel. It converts the potential or kinetic energy of the steam into mechanical
power. When the working substance is steam it is called the steam turbine.
IMPULSE TURBINE: The passage of steam through moving part of turbine in such a manner that the pressure at the outlet side of the blade is equal to that at the inlet inside. Such a turbine is broadly termed as impulse turbine.
IMPULSE REACTION TURBINE: Pressure of the steam at outlet from the moving blade may be less than that at the inlet side of the blades; the drop in pressure suffered by the steam during its flow through the moving causes a further generation of kinetic energy within the blades and adds to the propelling force which is applied to the turbine rotor. Such a turbine is broadly termed as ‘impulse reaction turbine’.
STEAM TURBINE
MOVING BLADES
FIXED BLADES
ROTOR LAYOUT
HIGH PRESSURE TURBINE: The HP turbine consists of 25 reaction stages. The moving and stationary blades are inserted into appropriately shapes into inner casing and the shaft.INTERMEDIATE PRESSURE TURBINE: The steam from HP turbine after reheating enters the inner casing from above and below through two inlet nozzles. The IP turbine consists of 20 reaction stages per flow. The moving and stationary blades are inserted in appropriately shaped grooves in shaft and inner casing.LOW PRESSURE TURBINE: Steam admitted to LP turbine from IP turbine flows into the inner casing from both sides through steam inlet nozzles.
TWO POLE TYPE; WITH CYLINDRICAL ROTOR
BASIC PRINCIPLE :FARADAY’s LOW OF MAGNETIC INDUCTION
COOLING: STATOR WINDING-DIRECT WATER COOLING ROTOR WINDING – HYDROGEN COOLING
GENERATOR:
MECHANICAL ENERGY
ELECTRICAL ENERGY