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