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This is simple introduction about 1000 MW Thermal Power Plant
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INTRODUCTION TO 1000 MW POWER PLANT
2
POWER PROJECT AT A GLANCE
Reliance Power is currently developing Fifteen large and medium sized power projects with a combined planned installed capacity of 35,460 MW. All these projects are in different stages of development and have made significant progress.
S.No PROJECTS CAPACITY in MW UNITS FUEL LOCATION
1 Rosa 1200 4 x 300 Coal based Uttar Pradesh
2 Butibori 300 300 Coal based Maharashtra
3 Sasan 3960 6X660 Coal based Madhya Pradesh
4 Krishnapatnam 4000 Coal based Andra pradesh
5 Chitrangi 5940 Coal based Madhya Pradesh
6 Tilaiya 3,960 coal based Jharkhand
7 Shahpur 4000 Gas based Maharashtra
8 Dadri 7,480 Gas based Uttar Pradesh
9 Urthing Sobla 400 Hydro Uttarakhand.
10 Siyom 1000 Hydro Arunachal Pradesh
11 Tato II 700 Hydro Siyom River
12 Kalai II 1200 Hydro Arunachal Pradesh
13 Amulin 420 Hydro Arunachal Pradesh
14 Emini 500 Hydro Arunachal Pradesh
15 Mihundon 400 Hydro Arunachal Pradesh
Total= 35460
3Data Source: CEA
4Data Source: CEA
5
ACTUAL POWER SUPPLY POSITION IN INDIA
Data Source: CEA
6
WHAT IS SUPER CRITICAL?
7
Decrease of the fuel cost due to the increasing efficiency;
Decrease of CO2 emission per unit of electricity to more than 15% in comparison with the existing coal fired power plant.
Decrease of pollutants including SOx, NOx and PM.
MAJOR ADVANTAGES OF USC
8
Cooling tower
Steam lines
Steam generator
Coal
Flue gasinjection
FGDFlue gasdesulphurisation
Draughtfan
Cooling water
PAfan
CoalmillsAsh
removal
Turbine Generator
Feed watertank
Feedpump
Electrostaticprecipitator
LP preheater
HP preheater
Condenser
GypsumFly ash
Airpreheater
FDfan
DeNOx
PROCESS OF POWER PLANT
9
DESIGN PARAMETERS
• Power Output 1000MW • Fuel Bituminous coal / Lignite• Primary fuel HFO• Boiler Capacity 2890 t/hr• Live steam / RH steam temp. 600°C / 620°C• Live steam pressure 260 bar• Condenser pressure 35 mbar • Turbine speed 3000 rpm• Plant net efficiency (heat rate) 46,2 % (7792 kJ/kWh)• Generator rated power 958 MVA • Power factor (cos φ) 0,825
Data Source: HITACHI
10
11
TYPE OF BOILERS
• Single pass Boiler• Two pass Boiler
Spiral Type Vertical Type
Furnace Classification of Boilers
12
BOILER
13
Fluid Temperature profile comparison for Water Wall Type
14
15TWO PASS BOILERSINGLE PASS BOILER
CONSTRUCTIONAL DIFFERENCE
16
TWO PASS BOILER WATER STEAM CYCLE PROCESS
17
HPT
IPTLPTCONDENSER
FEED WATER
FRS
STORAGE TANK
SEPARATOR
BWRP
Spiral water w
alls
MS LINE
HRH LINE
VERTICAL WW
ECO I/L
ECO JUNCTION HDR
ECO HGR O/L HDR
FUR LOWER HDR
FUR ROOF I/L HDR
DIV PANELS SH PLATEN SH
FINAL RH
FINAL SH
LTRH
ECONOMISER
GLPT
18
SINGLE PASS BOILER WATER STEAM CYCLE PROCESS
19
HPT
IPTLPTCONDENSER
GLPT
VERTICAL WW
HRH LINE
SEPARATOR
Spiral w
ater walls
MS LINE
ECONOMISER
STORAGE TANK
RH
SH
CRH LINE
20
BOILER EFFICIENCY - 1000 MW
Data Source: MHI
21
STEAM TURBINE
22
Type : Tandem-compound machine/
Cross Compound
Capacity: 1000 MW and 50 / 60 Hz
Speed :3000/3600 rpm
Steam Inlet Pressure: 246 Bar
Steam Inlet Temp : 600oC
Steam RH Inlet Temp :620oC
STEAM TURBINE
23Data Source: HITACHI
Bird’s-Eye View of Tandem-Compound 1,000-MW Steam Turbine and Generator.
The steam turbine consists of four turbine casings: a high pressure casing, an intermediate -pressure casing, and two low pressure casings. A Ti-alloy 40-inch blade and a 12Cr-alloy 43-inch blade are applied to the last stage blade for 60-Hz use and 50-Hz use, respectively. A large diameter rotor made of improved ductility high-strength shaft material is adopted to shorten the longer rotor length of thegenerator.
24Data Source: HITACHI
LP TURBINE BLADE DESIGN-1000MW
25Courtesy : Siemens
TANDOM COMPOUND TYPE
26
CROSS COMPOUND TYPE
Data Source: HITACHI
27
GENERATOR
28
Sl. Parameter Unit 660MW 1000MW
No Super Critical USC
1 Steam Temperature at HP inlet Deg.C 566 600
2 Steam Pressure at HP inlet Mpa 24.2 26
3 Flow at TMCR/BMCR TPH 1976/2134 2890/3080
4 Cold Reheat Temperature Deg.C 322 365
5 Cold Reheat pressure Mpa 4.65 5.97
6 Hot Reheat Temperature Deg.C 566 602
7 Hot Reheat Pressure Mpa 4.2 5.45
8 Reheater Flow (TMCR) TPH 1658 2373
9 Feed Water Temperature Deg.C 280 294
10 Boiler Efficiency % 84.58 89.21
11 Heat Rate at TMCR Kcal/KWhr 1899 1810
12 Min Load without Oil support % 40% 40%
13 Operation Frequency Range Hz 47.5-51.5 47.5-51.5
14 Type of Boiler 2 Pass Tower Type/Two pass
15 Furnace Size M2 17.64x19.824 24x24
COMPARISON OF 660MW Vs 1000 MW PARAMETERS
Continued….
29
Sl. Parameter Unit 660MW 1000MW
No Super Critical USC
16 Start up Pump No 1-30% Load 1-30% Load
17 Type Of Fans Axial Axial
18 Number of Mills Nos 7(6W+1SB -worst coal) 8(7W+1SB – worst coal)
19 Type of Mills HP MPS/HP
20 Air Pre Heaters Nos 2 (Trisector) 2(Bisector)
21 Margin On Fans % FD: 20%-Cap+30% - Head FD:20%-Cap+30%-Head
ID: 20%-Cap+44%-Head ID: 20%-Cap+30%-Head
22 Bottom Ash System Water Impounded Scrapper Conveyor
23 Turbine Type Tandem compound 3 cylinder Tandem compound 4/5 cylinder/Cross Compound
24 Turbine Module Combined HP/IP+2 LP HP+IP+2/3 LP
25 BFP Configuration 2x65% TDBFP+1x 35% MDBFP 2x50% TDBFP+1x 30% MDBFP
26 Condenser Type Dual Pressure
27 Condenser Back Pressure Kpa 10.03 8.7
28 HP/LP Bypass capacity (BMCR) % 60 60
29 Aux Power consumption % 3.64 3.4
30 Excitation System Static Static
31 Power Factor 0.85 0.825
COMPARISON OF 660MW Vs 1000 MW PARAMETERS
30
GE
ALSTOM
SIEMENS
HITACHI
MHI
TOSHIBA
SEC
AVAILABLE VENDERS IN MARKET
Thank YouJ.MURUGADASANSr.Manager.Dept. of Mechanical Construction