Kota Super Thermal Power Plant

A thermal power station is a power station in which heat energy is converted to electric power. In most of the places in the world the turbine is steam-driven. Water is heated, turns into steam and spins a steam turbine which drives an electrical generator.

1. SWAMI KESHVANAND INSTITUTE OF TECHNOLOGY A SEMINAR ON PRACTICAL TRAINING AT “KOTA SUPER THERMAL POWER STATION” SUBMITTED TO:- Mrs Rida Qureshi Ms Juhi Singhal SUBMITTED BY:- Himanshu Dixit Kamlesh Saini

2. KSTPS is the first coal based power plant in Rajasthan. It is located ideally on the bank of CHAMBAL River at the upstream of KOTA BARRAGE. Its first unit of capacity 110 MW is commissioned on 1983 and last one on 2009. It is one of the highest power generating plant with installed capacity of 1240 MW. INTRODUCTION:-

3. STAGES Unit 6 – 195 MW Unit 1 – 110 MW Unit 2 – 110 MW Unit 3 – 210 MW Unit 4 – 210 MW Unit 5 – 210 MW Unit 7 – 195 MW Stage I Stage II Stage III Stage IV Stage V DESIGN:- 110 + 110 + 210 + 210 + 210 + 195 +195 = 1240 MW

4. CONTENTS OF THE PRESENTATION:- GENERAL LAYOUT COAL HANDLING PLANT BOILER PROCESS OF STEAM GENERATION TURBINE GENERATOR COOLING SYSTEM WATER TREWATMENT PLANT SWITCHYARD CONTROL PANNEL

5. LAYOUT OF KSTPS:-

6. COAL STORAGE COAL HANDLING BOILER FURNANCE AIR AIR PREHEATER FORCED DRAFT FAN CHIMNEY EXHAUT ASH HANDING ASH STORAGE SUPER HEATER TURBINE CKT BREAKER CONDESER FWH RAW WATER TANK PLANT OVERVIEW:-

7. It is called the HEART of thermal power plant because it provides the fuel for combustion in boiler. There are 14 tracks for transportation COAL HANDLING PLANT:-

8. 20000 tons coal requirement per day. The main coal sources are: 1. Coal India Ltd. (CIL) 2.South Eastern Coalfield Ltd. (SECL) 3. Northern Coalfield Ltd. (NCL) (coal comes from 1000 km distance) Everyday 3- 4 trains of coal are unloaded, each train consists 58 wagons.(approx.3500-3800 tons) Coal is unloaded from wagons by means of WAGON TRIPPLER Stock yard Capacity -5.0 lack tons COAL HANDLING PLANT:-

9. Bunkers Crusher house H oppers Row coal feeders Coal mills (pulverization) BOILER FURNACE TANGENTIAL FIRING OF PULVERISED COAL OVERVIEW OF COAL HANDLING PLANT:- Row coal from COAL INDIA LIMITED To KSTPS from gurla via a single railway track Wagon trippler CONVEYING SYSTEM Coal size reduced by 20 mm

10. BOILER:- It is a closed vessel in which water under pressure is converted into steam. Hot water or steam used to transfer heat to a process. A boiler is always designed to absorb maximum amount of heat released in process of combustion. Furnace:- It is primary part of boiler where the fuel is burnt to liberate the heat energy.

11. Flue gases Boiler water tubes & various stages Boiler furnace Pulverized coal Air from environment via draft fans Ash handling plant DM water Super heated steam OVER VIEW OF BOILER:-

12. BOILER AT KSTPS

13. SUPER HEATER :- Super heater consists group of tubes made by chromium -molybdenum. The tubes are heated by the heat of flue gases travelling from the furnace to chimney , so the temperature increased. Super heater removes the moisture from the steam leaving from the boiler.

14. ECONOMISER :- Function -To extract some part of heat from flue gases & heat the feed water Process - Counter flow of flue gases & water Benefits - Increases efficiency by 10-12% & causes saving in fuel consumption 5-15%

15. AIR PREHEATER:- Function - To raise the temperature of air supplied to boiler furnace for coal combustion. Benefits- Increase the efficiency of plant. Type - Plate, Tubular, Regenerative. KSTPS uses Regenerative type.

16. CONDENSER:- It condenses exhaust steam & also removes air from steam. Steam condensed by condenser used as a good source of feed water to boiler. It improves the overall plant efficiency.

17. PROCESS OF STEAM GENERATION:- K.S.T.P.S

18. STEAM TURBINE MECHANICAL ENERGY GENERATOR ELECTRICAL ENERGY WORKING OF TURBINE & GENERATOR:-

19. TURBINE:- FUNCTION - Turbine is a machine in which shaft is rotated by the impact of the working fluid such as steam , water etc. TECHNICAL SPECIFICATION -   Rated output -- 110 MW Rated speed – 3000 rpm Direction of rotation – clockwise Type -3 cylinder, impulse reaction

20. BOILER & SUPERHEATER I P TURBINE H P TURBINE L P TURBINE REHEATER STEAM AT 531 C STEAM AT 531 C STEAM AT 344 C STEAM TURBINE:-

21. It converts mechanical power into electrical power . PRINCIPLE - Electromechanical energy conversion TECHNICAL SPECIFICATION - Active output - 110 MW Power factor – 0.85 lag Excitation voltage - 230 Volt Rated voltage – 11 KV Rated speed – 3000 rpm Phase connection – star-star GENERATOR:-

22. COOLING SYSTEM:- In KSTPS hydrogen cooling system is employed for generator cooling. Hydrogen is used because of its superior cooling properties & low density. Thermal conductivity of H2 7.3 times of air. Water cooling also used for any kind of fire.

23. COOLING TOWER:- Warm water is feed to the top. Flows from the top to bottom. The water drops falling from the top come in contact with air, lose heat to the air and get cooled. Its purpose is to reuse of the water. It increases the efficiency of plant. It increases the per capital investment of plant. In K.S.T.P.S. only unit 6 th and 7 th has cooling tower.

24. ASH HANDLING PLANT :- In thermal plants 25% is boiler furnace bottom ash and 75% is pulverized fuel ash. Electrostatic Precipitator is used in ash handling plant to remove fly ash.

25. WATER TREATMENT PLANT:- T he principle problems in boiler are corrosion and steam impurities so they require clean and soft water for longer life & better efficiency . ( c orrosion costs power station crores of rupees in repair ) Therefore , it is required that water is first purified and softened by chemical treatment & then delivered to the boiler.

26. WATER TREATMENT PLANT:- Pressure filter removes undisclosed impurities from raw water. Carbon filter removes excess chlorine from clarified water. D.M. plant removes dissolved impurities from clarified water. Conductivity ,pH & silica content of this water must be checked time to time.

27. SWITCHYARD:- The 220 KV Switch yard is the main part of the KTPS. There are 11 feeders connected at 220 KV switchyard

28. PLACES NO. SAKATPURA 4 SANGANER 1 PGCIL NANTA 2 HEERAPURA 1 GULABPURA 1 BEAWAR 1 MORAK 1 TOTEL OUTGOING FEEDERS:-

29. COMPONENTS OF SWITCHYARD :- BUSBARS LIGHTING ARRESTORS C.T P.T. WAVE TRAP POWER TRANSFORMER ISOLATORS C.B. RELAYS

30. In control room various controls are provided & various measurements are made . Instrumentation Limited Kota is major supplier of apparatus. Automatic control is provided for combustion , feed water regulation & reheat temperature. CONTROL ROOM

31. ANY QUERIES ? ? ? THANK YOU…!!! &