THERMAL POWER PLANT PARALI

Brief details about "THERMAL POWER PLANT MAHAGENCO PARALI" located at ,BEED,MAHARASHTRA.

1. WEL-COME

2. THERMAL POWER STATION PARALI BY NIRAJ J. MESHRAM MAHENDRA S. MAGRE VISHAL P. TAKLE NIKHILESH G. VAIDYA KAPIL J. CHINCHOLE

3. THERMAL POWER STATION

4. LOCATION : Parali-Vaijyanath , Dist . Beed . (MH) INFORMATION : Parali Thermal Power Station started in the year 1971-72. Total installation capicity of TPS= 1130 MW INTRODUCTION

5. Stages Year UNIT no. Capacity 1 1971 U-1,2 30 MW each 2 1984 U-3,4,5 210 MW each 3 2005 U-6,7 250 MW each Power Plant Stages

6. All power plants convert some form of easily and naturally available energy in to electrical energy. In thermal power plant, Water is the working fluid. The source of energy is Chemical Energy of fuel. Sequence of energy conversion is : What is thermal power plant?

7. SELECTION OF SITE FOR THERMAL POWER STATION Supply of fuel Availability of water Transportation facilities Cost and area of land Near to load centers Away from populated area

8. ENERGY CONVERSION PROCESS

9. COAL HANDLING PLANT (CHP) WATER HANDLING PLANT (WHP) TURBINE TRANSFORMER AND GENERATOR BOILER SYSTEM THERMAL POWER PLANT CONSISTS OF FOLLOWING MAIN PARTS:-

10. WHY COAL as Fuel ? Coal can provide usable energy at a cost of between 12 to 15 % compared to oil and natural gas, and coal prices are relatively stable. Coal is inherently higher-polluting and more carbon-intensive than other energy alternatives. However, coal is so inexpensive that one can spend quite a bit on pollution control, and still maintain coal’s competitive position.

11. TYPES OF WATER REQUIRED AT TPS DEMINERALISED WATER – BOILER SOFTEN WATER – COOLING & GENERAL SERVICE DRINKING WATER – DOMESTIC PURPOSE ASH HANDLING – RAW WATER OR UNTREATED WATER FIRE FIGHTING – UNTREATED WATER COAL HANDLING – UNTREATED WATER DM % 3-4 CW/GS % 50-55 AHP % 40-45 DOMESTIC % 6-7

12. Machines CHP : To Handle Fuel Coal WTP : To Treat Water Boiler : Generate High Press, High Temp Steam Turbine: As aPlants /Main prime mover to Generator Generator: To Generate Electricity Transformer : For required Voltage Switch yard : On ward Transmission of Power

13. COAL CYCLE

14. Pressure parts of Boiler Waterwall Economiser Superheater Reheater Boiler drum

15. STRUCTURE OF BOILERS Boiler structure is supported on 4 columns that is hung from top and supported on vertical columns All plates, rivets, bars and their testing is covered under regulation and construction is done under the supervision of inspecting officer at all the stages The boiler is a rectangular furnace about 50 feet(15 m) on a side and 130 feet (40 m) tall. Its walls are made of a web of high pressure steel tubes about 2.3 inches (58 mm) in diameter. Pulverized coal is air-blown into the furnace through burners located at the four corners, or along one wall, or two opposite walls, and it is ignited to rapidly burn, forming a large fireball at the center

16. Types Of Boilers

17. DOWN COMERS WATER WALL FRONT WATER WALL REAR PLATEN SUPERHEATER REHEATER FRONT REHEATER REAR FINAL SUPERHEATER WATER WALL BOTTOM RING HEADER SCW SH FRONT SCW SH REAR DRUM CRH IN REAR ROOF WATER INLET SH STEAM OUTLET EXTENDED WW EXT SCW SH FRONT ROOF HRH OUT LTSH Economiser

18. 31 October 2015 PMI Revision 00 21 DRUM Lifting in Progress

19. BUCKSTAY SUPPORT FOR WATTER WALL TUBES

20. TURBINES

21. TURBINE CROSS SECTIONAL VIEW

22. HPT,IPT,LPT

23. HP Turbine IP Turbine LP Turbine   Regeneration Heating System consists of   1. HP Heaters 2. LP Heaters 3. Deaerator 4. Condenser 5. CEP and BFP 6. CW System TURBINE SYSTEM

24. Steam flow in a turbine Steam in H.P turbine : P = 140 kg/cm 2 T = 540 o C Steam in I.P : P= 26 kg/cm 2 T = 540 o C Steam in L.P. : P = 7 kg/cm 2 T = 270 o C

25. Working principle Kinetic energy converted to rotational energy which rotates the rotor of generator Blades are so designed so as not to strike the blades but to glide on to avoid wearing Total motive force acting on the blades is thus the resultant of all the centrifugal force plus the change of momentum

26. ROTORS HIGH PRESSURE INTERMEDIATE PRESSURE LOW PRESSURE

27. BOILER Condenser LPT IPT MS MS CRH NRV HRH HPSV HPSV IPSV IPSV GENERATOR HPCV HPCV IPCV IPCV CRH NRV TGSET HPT

28. Generator Components Stator Rotor Exciter Stator water cooling system Rotor & Stator Hydrogen cooling System Hydrogen Seal oil System Bus Ducts Generator synchronizing system

29. Working Of Generator The principle Faraday’s law , is that an electromotive force is generated in an electrical conductor which encircles a varying magnetic flux.

30. 3-Phase output

31. REQUIREMENTS FOR ONE UNIT OF 210 MW 600 ton steam supply/hr 125 ton coal supply/hr Three motors of 500 HP for supply of water Daily consuption of coal for whole plant is near about 13000 ton.

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