options in power generation serving core & infrastructure sectors of the economy power thermal...
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Hyd ro
O il
Pulverise d C oa l Flud ised BedTe c hno logy
C oa l G a s
Ste a m Powe r Pla ntsBo ile r + Turb ine
O p e n C yc le(G a s Turbine)
C om b ine d C yc leG T + ST
G a s Turb ine Ba sedPow e r Pla nts
The rm a l Nuc le a r Non C onve ntiona l
Pow er G e ne ra tion O p tions
OPTIONS in POWER GENERATION
SERVING CORE & INFRASTRUCTURE SECTORS OF THE ECONOMY
PowerThermalSub-Crit: Up to 600MWSup. Crit: 660 & 800MWBoilers, STG, Auxiliaries, ESPEPC
HydroUp to 250 MWTurbines, GeneratorsControls
GasAdv. Class GTsOpen Cycle,Combined Cycle
NuclearUp to 1000 MWe
Power TransmissionSwitchgear, Transformers, Insulators, Substations, SCADA, HVDC Systems
Industry
Captive Power PlantsBoilers, STGs, Auxiliaries, C&I Systems, DG
TransportationLocomotives (electric - AC/DC), Diesel-electrics, EMU's, Traction Electrics
Other ProductsOn-Shore Oil Rigs, Compressors, NCES, Desalination Plants, Valves, Motors
International Operations
Operating Business Areas
BHEL75%
OTHERS25%
GENERATION 612 BUs Thermal Utility sets
2011-12
OTHERS41%
BHEL59%
INSTALLED CAPACITY - Utility 180413 MW (As on Mar. 2012)
Over 1,15,000 MW added by BHEL in domestic and international segmentsOver 1,15,000 MW added by BHEL in domestic and international segments
BHEL’S Contribution to Indian Power Sector
Steam Generators ExportedCustomer 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 1
PT. ADARO Indoesia 126 T/h 2
KONIAMBO-Nickel SAS
Koniambo Nickel SAS – New Caledonia
405 T/h 2
NEB-Malaysia Sultan Ismail TPS 30 MW 1
EEA-Egypt Al-Arish TPS 30 MW 2
NEB-Malaysia Tuanku Jaafar TPS 60 MW 2
NEB-Malaysia Tuanku Jaafar TPS 120 MW 3
NEB-Malaysia Prai TPS 120 MW 3
NEB-Malaysia Pasirgudang TPS 120 MW 2
ECT-Libya Tripoli West TPS 120 MW 2
NEC-Sudan Kosti TPS 125 MW 4
MAYLAN Intra Ltd Senegal / Africa 125 MW 1
PEEGT Tishreen,Syria 200 MW 2
Total 36Total 36
Trend in unit sizes & Cycle parameters
Unit Size 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 / 156 540/540 1972
250 MW 156 540/540 1991
500 MW 179179
540/540 540/568
19791985
600 MW 179 540/540540/568 2008
660 MW 256 568/596 2008
700 MW 256 568/596 2010
800 MW 256 568/596 2008
Heat balance diagram (270 MW)
Rankine cycle 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.
1
23
3’
4T
S
T1
T2
p1
p2
3-3’ – BFP raises pressure from p2 to p1 3’-4 – Heating In feed heaters & economizer4 -1 – Heating In boiler1-2 – Work done in Turbine from p1 to p2
2-3 – Heat reduction in condenser
DO
WN
CO
MER
S
WA
TER
WA
LL F
RO
NT
WA
TER
WA
LL R
EA
R
PLA
TEN
SU
PER
HEA
TER
REH
EA
TER
FR
ON
T
REH
EA
TER
REA
R
FI N
AL S
UP
ER
HEA
TER
WATER WALL BOTTOM RING HEADERS
CW
SH
FR
ON
T
SC
W S
H R
EA
R
DRUM
CRH IN
REAR ROOF
WATER INLET
SH STEAM OUTLET
EXTENDED WW
EXT SCW SH
FRONT ROOF
HRH OUT
LTSH
Economiser
BASIC DATA FOR DESIGNBASIC DATA FOR DESIGN
BOILER PARAMTERS
FUEL DATA
SITE DATA
FUEL ANALYSIS COAL
Fuels HandledCoal / 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
EPRS LOADING
PLAN AREA LOADING
VOLUMETRIC LOADING
BURNER ZONE HEAT RELEASE RATE
FURNACE HEAT LOADINGSFURNACE HEAT LOADINGS
BOILER AUXILIARIESBOILER AUXILIARIES
MILL
FANS
ELECTROSTATIC PRECIPITATOR
AIRHEATERS
BOWL MILLS UNDER ERECTIONBOWL MILLS UNDER ERECTION
Bowl Mill (General Arrangement)
Tube Mill Arrangement (Typical)
Axial Reaction Fan (Single Stage)
Axial Reaction Fan (Double Stage)
Axial Fan Impulse Type (AN)
Radial Fan (Double Suction)
AIRPREHEATERSAIRPREHEATERS
ELECTROSTATIC PRECIPITATORELECTROSTATIC PRECIPITATOR
TG FLOOR - THERMAL POWER PLANT
TYPICAL STEAM & WATER CIRCUIT
TYPICAL SCHEME OF AIR & GAS DUCTS / CIRCUITS
COLD PA SYSTEM
Once Through Supercritical Steam Generators
NTPC/ BARH II STPP – 2 x 660 MW
CoalFuel
568 / 596 oC Temperature
255/54.65 kg/cm2 (g)Pressure
2120/1708.2 t/h.Steam Flow
31.03.2008Zero Date
U6/1700 & U6/1701Contract No.
Not in SG PackageDust Collector
2 Nos. SAF 42.5/26.6-1, Axial Reaction-TLTID Fan
2 Nos. PAF 19/10.6 – 2, Axial Reaction-TLTPA Fan
2 Nos. FAF 25/11.2 – 1, Axial Reaction-TLT
FD Fan
PAH - 2 Nos. 28.5 VI 58 (70)MR,2NOS 31.5 VI 70 (82)MR ALSTOM Supply
Airheater
9 Nos. Bowl Mill, HP 1103Mill
Major Auxiliaries
Parameters at SHO / RHO
BARH II – 2 x 660 MWProject
National Thermal Power CorporationCustomer
Steam generation process
T S DIAGRAM
Boilin
g W
ater
Dry Saturated Steam
Entropy KJ / Kg K
Tem
pera
ture
( 0
C )
-2730
24’0c
A
B C
D
E
Basic Rankine Cycle
F
OUTPUT INCREASE
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
Circulation Systems
Drum Type Once-through
Thank You