hritik presentation for locosheild ntpc khelgaon

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1. Presentation On: Power Plant Engineering Vocational Training: NTPC Kahalgaon , Bhagalpur (Bihar) Presented By: Hritik Kumar Branch: Mechanical Engineering Reg No: 21033495012 Guided by: Bagesh Bihari Sir

2. ABOUT NTPC KAHALGAON

3. Thermal Power Plant Thermal Power Plant is based on Rankine Cycle. Main Units of Thermal power Plant: DM Water Plant CHP (Coal Handling Plant) AHP (Ash Handling Plant) Boiler Turbine & Generator Fire Detection And Alarm System

4. THERMAL POWER PLANT LAYOUT

5. DM WATER PLANT The function of demineralization plant is to remove dissolved salt by ion exchange method (chemical method) and there by producing pure feed water for boiler. The salts which make the water hard are generally- chloride, carbonates, bi- carbonates, silicates and phosphates of sodium, potassium, iron, calcium and magnesium. In D M plant there are three types of resin used for boiler feed water treatment process – 1. Cation exchange r es in 2. Anion exchange resin 3. Mixed Bed re s in

6. DM PLANT LAYOUT

7. COAL HANDLING PLANT The coal handling plant (CHP) in a thermal power station covers unloading of coal, its crushing, storage and filling of boiler bunkers. Components: Unloading system Conveyor system Feeding system Crushing system Stacking system Magnetic separator/ metal detector Fire fighting system • Dust suppression system Dust extraction system

8. COAL UNLOADING Wagon Tippler Unloading Wagon Bottom Open Unloading

9. ASH HANDLING PLANT Ash handling system mainly design for the collection, handling and disposal of bottom ash and fly ash from ESP System to Silo area and operation of its associated systems i.e. ash water, instrument air, conveying air and fluidizing air system.

10. BOILER Boiler or more specifically steam boiler is an essential part of thermal power plant. Steam boiler or simply a boiler is basically a closed vessel into which water is heated until the water is converted into steam at required pressure. Types of Boiler Fire Tube Boiler Water Tube Boiler

11. TYPES OF BOILER Fire Tube Boiler Water Tube Boiler

12. TURBINE AND GENERATOR A steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Types Of Turbine HPT (High Pressure Turbine) IPT (Intermediate Pressure Turbine) LPT (Low Pressure Turbine)

13. Arrangement Of Turbines

14. Turbo Generator A turbo generator is the combination of a turbine directly connected to an electric generator for the generation of electric power. It generate 21K Voltage. Main Parts of Generator Stator Frame Rotor Stator Core Stator Windings

15. Fire Detection Fire detectors are designed to detect one or more of the three characteristics of firesmoke, heat and flame. Type of Fire Detectors : Smoke Detector 2. Fire Detector 3. Heat Detector 4. Linear Heat Sensing Cable

16. Fire Protection System Thermal Power Plants are characterized by their complex overall system made of a range of different operating modules. In addition to these conditions such as extremely hot surfaces, lubricating oils and coal and coal dust pose huge fire risks Types Of Fire Protection HVWSS ( High Velocity Water Spray System) MVWSS (Medium Velocity Water Spray System) Fixed Foam system Gas Extinguishing System

17. Foam Fire Protection system Foam Fire Protection System is fire suppression system. Its success is mainly depends on proper mixing of foam concentrate along with air and water, to form a uniform foam blanket to extinguish flame.

18. Thank You