1. Welcome

3. OPTIONS in POWER GENERATION

4. SERVING CORE & INFRASTRUCTURE SECTORS OF THE ECONOMY
Operating Business Areas
Power
Thermal
Sub-Crit: Up to 600MW
Sup. Crit: 660 & 800MW
Boilers, STG, Auxiliaries, ESP
EPC
Hydro
Up to 250 MW
Turbines, Generators
Controls
Gas
Adv. Class GTs
Open Cycle,
Combined Cycle
Nuclear
Up to 1000 MWe
Power Transmission
Switchgear, Transformers, Insulators, Substations, SCADA, HVDC Systems
Industry
Captive Power Plants
Boilers, STGs, Auxiliaries, C&I Systems, DG
Transportation
Locomotives (electric - AC/DC), Diesel-electrics, EMU's, Traction Electrics
Other Products
On-Shore Oil Rigs, Compressors, NCES, Desalination Plants,
Valves, Motors
International Operations
SERVING CORE & INFRASTRUCTURE SECTORS OF THE ECONOMY 4

5. BHEL’S Contribution to Indian Power Sector
Practically every 3 houses out of 4 in India
are supplied power, generated from BHEL sets
Over 1,15,000 MW added by BHEL in domestic and international segments 5 5

6. Steam Generators Exported
Customer
Unit
Size No
EEA-Egypt
Al-Arish TPS
12 T/h 1
ECT-Libya
Tripoli West TPS
45 T/h 2
PT IBR-Indonesia
Bharat Rayon
75 / 80 T/h
3 / 3
PT – IBR
Jawa bharat Indonesia
120 T/h
PT. ADARO
Indoesia
126 T/h
KONIAMBO-Nickel SAS
Koniambo Nickel SAS – New Caledonia
405 T/h
NEB-Malaysia
Sultan Ismail TPS
30 MW
Tuanku Jaafar TPS
60 MW
120 MW 3
Prai TPS
Pasirgudang TPS
NEC-Sudan
Kosti TPS
125 MW 4
MAYLAN Intra Ltd
Senegal / Africa
PEEGT
Tishreen,Syria
200 MW
Total 36

7. Trend in unit sizes & Cycle parameters
SHO Pressure (kg/cm2(a)
SHO/RHO Temperature (Deg.C)
Year of Introduction
60 / 70 MW 96
540
1965
110 / 120 MW
139
540/540
1966
200 / 210 MW
137 / 156
1972
250 MW
156
1991
500 MW
179
540/568
1979
1985
600 MW
2008
660 MW
256
568/596
700 MW
2010
800 MW

8. Heat balance diagram (270 MW)

10. Rankine cycle T 4 1 3-3’ – BFP raises pressure from p2 to p1
The Carnot Cycle is theoretically most efficient, but it is having practical difficulties.
For steam power plant, practical thermal cycle was suggested by Rankine, called Ideal cycle or Rankine cycle. T 4 1 T1
3-3’ – BFP raises pressure from p2 to p1
3’-4 – Heating In feed heaters & economizer
4 -1 – Heating In boiler
1-2 – Work done in Turbine from p1 to p2
2-3 – Heat reduction in condenser p1 3’ 2 T2 3 p2 S

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

16. BASIC DATA FOR DESIGN
BOILER PARAMTERS
FUEL DATA
SITE DATA

18. FUEL ANALYSIS COAL

19. Fuels Handled Coal / Oil / Natural Gas in any combination Lignite
Blast Furnace Gas / Coke Oven Gas / Corex Gas
Carbon Monoxide / Tail gas
Asphalt
Black Liquor
Bagasse
Rice Husk
Washery Rejects
Wheat / Rice straw

20. FURNACE HEAT LOADINGS EPRS LOADING PLAN AREA LOADING
VOLUMETRIC LOADING
BURNER ZONE HEAT RELEASE RATE

21. BOILER AUXILIARIES
MILL
FANS
ELECTROSTATIC PRECIPITATOR
AIRHEATERS

22. BOWL MILLS UNDER ERECTION

23. Bowl Mill (General Arrangement)

24. Tube Mill Arrangement (Typical)

25. Axial Reaction Fan (Single Stage)

26. Axial Reaction Fan (Double Stage)

27. Axial Fan Impulse Type (AN)

28. Radial Fan (Double Suction)

29. AIRPREHEATERS

30. ELECTROSTATIC PRECIPITATOR

31. TG FLOOR - THERMAL POWER PLANT

32. TYPICAL STEAM & WATER CIRCUIT

33. TYPICAL SCHEME OF AIR & GAS DUCTS / CIRCUITS
COLD PA SYSTEM

34. Once Through Supercritical Steam Generators

35. NTPC/ BARH II STPP – 2 x 660 MW Coal Fuel 568 / 596 oC Temperature
255/54.65 kg/cm2 (g)
Pressure
2120/ t/h.
Steam Flow
Zero Date
U6/1700 & U6/1701
Contract No.
Not in SG Package
Dust Collector
2 Nos. SAF 42.5/26.6-1, Axial Reaction-TLT
ID Fan
2 Nos. PAF 19/10.6 – 2, Axial Reaction-TLT
PA Fan
2 Nos. FAF 25/11.2 – 1, Axial Reaction-TLT
FD Fan
PAH - 2 Nos VI 58 (70)MR,2NOS VI 70 (82)MR ALSTOM Supply
Airheater
9 Nos. Bowl Mill, HP 1103
Mill
Major Auxiliaries
Parameters at SHO / RHO
BARH II – 2 x 660 MW
Project
National Thermal Power Corporation
Customer

36. Steam generation process

37. T S DIAGRAM OUTPUT INCREASE D Temperature ( 0 C ) Boiling Water B C
Dry Saturated Steam E
24’0c F A
-273
Entropy KJ / Kg K
Basic Rankine Cycle

38. The Concept
The mass flow rate thru’ all heat transfer circuits from Eco. inlet to SH outlet is kept same except at low loads wherein recirculation is resorted to protect the water wall system

39. Circulation Systems
Drum Type
Once-through

40. Thank You