TPS Working & Equipments
Transcript of TPS Working & Equipments
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THERMAL POWER PLANT WORKING &
EQUIPMENTS
By
M.V.PandeDy. Director
N.P.T.I., Nagpur
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Inputs & Outputs for 1000 MW Power Station
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Costing of Thermal Power Generation
66%
28%
6%
Fuel Cost
Capital Cost
Operating Cost
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Energy Conversion Process in TPS
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Energy Conversion Efficiency
Heat Input
100% 39% 61%
Heat Rejected
Electrical Energy
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Modified Rankine Cycle
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Energy Balance
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Coal to Electricity Process
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Feed Water & Steam Flow Diagram
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Tangential Corner Coal Firing Arrangement
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Coal Burner
Flame
Plasma Igniter
Pulverised Coal & Air Mixture
Muffle
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Gas + Steam: Combined Cycle
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Main Areas in Power Station
Boiler Plant HouseTurbine Generator HouseSwitch YardCoal Handling PlantOil Handling PlantWater Treatment PlantCooling Towers & Cooling Water
Pump HouseAsh Handling Plant
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Thermal Power Station Layout
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Boiler & Turbine House
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Power Plant Structure
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Boiler & Auxiliaries
Boiler – Furnace & Pressure Parts Rotary Air Preheaters: 2 nos. Forced Draft Fans: 2 nos. Induced Draft Fans: 2 nos. Primary Air Fans: 6 nos. Seal Air (3 nos.) & Scanner Air Fans (3
nos.) Coal Mills (Pulverisers): 6 nos. Electrstatic Precipitators
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PF Boiler
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Pulverised Fuel Boiler
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500 MW Coal Fired Boiler
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Oil & Gas Fired Boiler
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Coal Pulverisers
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Drum Type Coal Mill
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Steam TurbinesSingle Cylinder Turbines are
employed for Industrial purpose & Multi-cylinder Turbines for utility power generation
Power generation turbines are designed for constant speed operation
Turbine efficiency varies from 85-90%
Tandem compounded arrangement is generally adopted for utility turbines
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Steam Turbine Working
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Single Cylinder Modular Turbine
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Single Cylinder Steam Turbine
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210 MW Utility Steam Turbine
HP Turbine
IP Turbine
LP Turbine
Foundation
Gen. End
Bearing
Condenser
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Steam Turbine Fixed & Moving Blades
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Barrel Type HP Turbine
Balance
Piston
Moving Blades
Barrel Casing
Inner Casing
Gland
Steam Inlet
Steam Exhaust
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Double Flow IP Turbine
Outer Casing
Inner Casing
Rotor
Inlet
Inlet
Exhaust
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Double Flow LP Turbine
Outer Casing
Inner Casing
Last Stage Rotor Blades
Steam Inlet
Atmospheric Relief
Diaphragms
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Reaction Type KWU HP Turbine Rotor
Impulse-Reaction Type HPT Rotor KWU LP Turbine Rotor
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KWU IP Turbine Rotor Placed in Casing
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Turbine Auxiliaries
CondenserSteam Ejectors: 2+1Condensate Extraction Pumps: 1+1L.P.Heaters: 3Deaerator: 1Boiler Feed Pumps: 2+1H.P.Heaters: 2Turbine Oil Pumps: M.O.P.+2A.O.P.
+E.O.P.+2J.O.P
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3.5 MW Boiler Feed Pump
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3.5 MW Boiler Feed Pump Installation
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Condenser
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Cooling Towers
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Main Oil Tank & Pumps
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500 MW Turbine Generator Unit
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Steam Turbine Governing System
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Plant Control Room in 1990s
Modern Control
Room with DCS
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