Philippe Anglaret the VP Business Development for Alstom Nuclear (Atoms for the Future 2013)
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Philippe ANGLARET, the VP Business Development for Alstom Nuclear, presented the Turbine Island with its different characteristics and very impressive pictures.
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Philippe Anglaret the VP Business Development for Alstom Nuclear (Atoms for the Future 2013)
- 1. Nuclear Power Plants The Turbine Island Philippe Anglaret VP Business Development , Alstom Nuclear Paris, 21st October 2013
- 2. The Turbine Island Agenda 1 2 Turbine Island Basics 3 Turbine Island – Key Products & Solutions 4 p.2 Alstom in Nuclear Recent Projects
- 3. Alstom in Nuclear Nuclear Island Turbine Island Balance of Plant Reactor supplier Alstom (including Alstom Grid) Nuclear Island + Turbine Island + BoP = Nuclear Power Plant p.3
- 4. Alstom in Nuclear Turbine Islands based on ARABELLE™ technology Credits to EDF p.4
- 5. Alstom in Nuclear World N°1 supplier of nuclear steam turbine generators 55 years of experience : 136 nuclear units in operation = 113 GW Europe North America 8 GW 8 units 90 GW 103 units China India South Korea 5 GW 6 units 6 GW 6 units 2 GW 11 units 50 86 Full-speed Half-speed South Africa 2 GW 2 units < 800 MW 24 47 65 30% of all the world’s nuclear plants have an Alstom steam turbine p.5 800 - 1200 MW > 1200 MW
- 6. EDF French Nuclear Fleet Various generations of nuclear steam turbines CP0 – CP1 P4 – P’4 900 MW 1300 MW N4 – ARABELLE 1550 MW p.6
- 7. Nuclear Business Competitive Positioning • Competitors worldwide experience (50 & 60 Hz grids) TG supplier Toshiba Largest unit in commercial operation (as of Sept. 2012) Largest unit under construction (as of Sept. 2012) GE 1100 MWe 1410 MWe Higashi-Dori 1 Palo Verde 2 (50 Hz) (60 Hz) 1400 MWe Braka 1-4 (50 Hz) 1455 MWe Shin-Kori 3 (60 Hz) Power Machines Mitsubishi Siemens Alstom 1060 MWe Tianwan 1 (50 Hz) 1180 MWe Genkai 3 (60 Hz) 1500 MWe Isar 2 (50 Hz) 1550 MWe Chooz B1 (50 Hz) 1200 MWe Leningrad II 1 (50 Hz) 1370 MWe Lungmen 1 (60 Hz) 1720 MWe Olkiluoto 3 (50 Hz) 1750 MWe Flamanville 3 (50 Hz) • Color code: Green = currently in Operation Blue = currently under Construction p.7
- 8. The Turbine Island Agenda 1 2 Turbine Island Basics 3 Turbine Island – Key Products & Solutions 4 p.8 Alstom in Nuclear Recent Projects
- 9. Inside a Nuclear Power Plant Primary, Secondary, Tertiary Loops • • Non-contaminated steam goes to steam turbine No turbine island containment needed The Pressurised Water Reactor (PWR) p.9
- 10. Inside a Nuclear Power Plant Primary, Tertiary Loops • • Contaminated steam goes to steam turbine special gland sealing system Turbine island needs some containment (concrete shielding) + specific material choices The Boiling Water Reactor (BWR) p.10
- 11. What is specific to Nuclear Power Plants ? Much larger steam volume flow Steam volume flow (m3/s) 80 60 Fossil Nuclear 40 X5 20 0 0 500 1000 1500 2000 Steam turbine generator output (MW) Nuclear large volume flows need for long blades high centrifugal forces p.11
- 12. What is specific to Nuclear Power Plants ? Wet steam conditions Fossil Dry Steam H = Enthalpy (kJ/kg) 150-300 bar 540-600°C Saturation line Nuclear Wet Steam 50-75 bar 265-290°C S = Entropy (kJ/kg/°K) p.12
- 13. Steam Expansion Line Mollier Diagram – N4 Reactor P : 10.1 bar T : 268°C P : 71 bar T : 287°C x : 0.4 % “cold” steam at LP inlet : • small LP axial thermal expansion • reduced axial clearances • possibility to fit a 4th LP IP HP MSR P : 3.3 bar T : 148°C X:0% P : 10.7 bar T : 183°C x : 14.6 % Enthalpy H (kJ/kg) Entropy S (kJ/kg.K) p.13 LP P : 0.055 bar x : 12.5 %
- 14. EPR - Flamanville 3 Simplified steam-water cycle Steam and water pipes from/to NI Busbars HP IP MSR 100% steam bypass to condenser Generator, exciter LP Circulating water pumps Condenser,vacuum system, debris filters Drain tanks De-aerating feed-water tank MSR drain pumps Core Condensate extraction pumps LP heaters HP heaters Feed heaters pumps NSSS PACKAGE Primary Loop p.14 Secondary Loop CI auxiliaries cooling HEX Tertiary Loop
- 15. World Nuclear Power Plants Half-speed dominates the market above 700 MW • France, U.S.A., Canada, Japan, South Korea, Brazil, Taiwan, South Africa, etc.: − • all nuclear units in operation are half-speed China: since 2005, all nuclear turbines (with output > 700 MW) ordered are half-speed Full-speed / Half-speed − 26% 66% Half-speed 91% 100% Full-speed 74% 34% 9% All sizes < 700 MW > 700 MW > 1200 MW Unit size range Source: Alstom databases Above 1200 MW, only half-speed to keep reasonable stress levels p.15
- 16. Full Speed vs. Half Speed – what makes the difference ? Case study : Ling Ao 1 vs. Ling Ao 3 Enthalpy (kJ/kg) 3100 Ling Ao 1 Full speed 3000 2900 Ling Ao 3 Half speed IP 2800 2700 HP 2600 Half speed expansion lines in HP, IP and LP sections are much more efficient 2500 LP 2400 2300 2200 2100 5,8 p.16 6 6,2 6,4 6,6 6,8 7 7,2 7,4 7,6 Entropy (kJ/kg/K)
- 17. A challenge for turbine designers Covering a wide range of reactors & heat sinks Typical LP exhaust volumetric flow for a given application: 1 reactor/1 site Reactors p.17 5 9 12 15 17 19 21 23 24 26 27 28 30 31 32 Finland 33 India Site cooling water temp. °C
- 18. A challenge for turbine designers Covering a wide range of reactors & heat sinks Typical LP exhaust area needed for a given application: 1 reactor/1 site Reactor thermal output in MWth 5 000 MWth 250 m² 200 m² 150 m² 4 500 MWth 4 000 MWth EPR ESBWR APWR ABWR 100 m² 3 500 MWth AP1000 75 m² VVER1200 3 000 MWth CPR1000 ATMEA1 50 m² 2 500 MWth 2 000 MWth 100 mbar 90 mbar PHWR700 1.5 "Hg 2.5 "Hg 80 mbar 70 mbar 60 mbar 1.5 "Hg 50 mbar 40 mbar 30 mbar 20 mbar 5 9 12 15 17 19 21 23 24 26 27 28 30 31 32 33 Condenser backpressure in mbar p.18 Reactors Site cooling water temp. °C
- 19. The Turbine Island Agenda 1 2 Turbine Island Basics 3 Turbine Island – Key Products & Solutions 4 p.19 Alstom in Nuclear Recent Projects
- 20. Integrated Packages Turbine Island (TI) p.20
- 21. Integrated Packages Secondary Loop Package (SLP) p.21
- 22. Turbine Islands key components Steam turbine Grid equipment MSR 4-pole generator Condensate extraction pumps p.22 Circulating water pumps Reactor feed-water pumps HP & LP feed-water heaters Modular condenser
- 23. The Turbine Island Agenda 1 Alstom in Nuclear 2 Turbine Island Basics 3 Turbine Island – Key Products & Solutions The steam turbine 4 p.23 Recent Projects
- 24. Turbine Technology Use of more efficient single flow steam expansion Moisture Separator Reheater 71 bar 3 bar HP IP 11 bar p.24 Moisture Separator Reheater LP 1 BP LP 2 BP LP 3 BP 60% of the power output comes from single flow steam expansion
- 25. ARABELLE™ Steam Turbine Advanced compared to previous generation MSR ~75 bar HP ~10 bar IP LP 1 LP 2 ~3 bar ARABELLE™ Efficient configuration Single flow use LP 3 MSR MSR ~75 bar HP LP 1 ~10 bar LP 2 LP 3 PREVIOUS GENERATION Traditional configuration Double flow use MSR ARABELLE™ uses more efficient single flow steam expansion p.25
- 26. ARABELLE™ Steam Turbine A specific design to maximise single flow steam expansion & efficiency IP Single Flow LP Double Flow HP Single Flow 2 Flows 1 Flow ARABELLE™ 6 Flows 1 Flow HP Double Flow PREVIOUS GENERATION LP Double Flow p.26
- 27. How to improve turbine efficiency ? • Efficiency increases with blade aspect ratio Longer blades have better efficiency p.27
- 28. ARABELLE™ Characteristics Combined HP/IP Module, Unique in the Market • Single flow HP and IP for best efficiency • Combined HP/IP for maximum power density • Same footprint for 50 and 60 Hz • Designed to fit all large commercialised reactors • HP/IP rotor delivers up to 60% of the overall output p.28
- 29. ARABELLE 1700 50 Hz Flamanville 3 HP-IP casing Flamanville 3 rough machined HP-IP casing in VOEST ALPINE foundry p.29
- 30. ARABELLETM References Ling Ao 3+4 – 2 x 1080 MW Ling Ao 3 HP-IP casing in Dong Fang Works p.30
- 31. ARABELLETM References Flamanville 3 – 1 x 1750 MW • HP/IP rotor entering balancing pit, Belfort factory p.31
- 32. ARABELLETM References Flamanville 3 – 1 x 1750 MW • LP2 welded rotor, fully bladed, Belfort factory p.32
- 33. ARABELLE 1000 for Ling Ao 3 Last Stage Blades : LSB57 Fully bladed LP57 rotor entering Belfort balancing pit (Ling Ao 3) p.33
- 34. The Turbine Island Agenda 1 Alstom in Nuclear 2 Turbine Island Basics 3 Turbine Island – Key Products & Solutions The generator 4 p.34 Recent Projects
- 35. GIGATOP 4-pole for Flamanville 3 A highly efficient turbo-generator • • • • • • • • 2000 MVA Cos-phi = 0,9 1500 rpm 4 poles, 3 phases 23 kV Brush-less exciter H2 and H2O cooled Stainless steel cooling tubes • H2 pressure: 6 bars(g) • Triple-circuit hydrogen sealing system • 99% efficiency • Flamanville 3 generator final assembly and running tests in Alstom factory • Validation of manufacturing quality • Validation of the design, of the electrical performances p.35
- 36. The Turbine Island Agenda 1 Alstom in Nuclear 2 Turbine Island Basics 3 Turbine Island – Key Products & Solutions The heat exchangers 4 p.36 Recent Projects
- 37. Key Components Heat Exchangers for Nuclear Plants Condenser Auxiliary water/water coolers 1 5 2 Moisture separator reheater (MSR) 2 3 High velocity separators (HVS) 4 1 HP heater 3 LP heater 4 p.37 Feedwater tank and deaerator 5 Nuclear purification system (NPS)
- 38. ALSTOM MSR Moisture Separator Reheaters ARABELLE N4 - 1550 MW - MSR p.38
- 39. Nuclear Heat Exchangers Flamanville 3 deaerating feed-water tank • When assembled, final dimension is: 47.1 m x 5.9 m x 5.3 m • Designed by Alstom - In 3 separate pieces - 98 t + 90 t + 98 t - Transported separately - Welded at site p.39
- 40. Nuclear Heat Exchangers A Complete Condensing System • Single or multiple pressure condensers • Optimised tube bundle arrangement for high performances • Compact arrangement with LP turbines directly feeding duplex LP1&2 FW heater located in condenser neck • Optimised condensate extraction with 3x50% pumps • Optimised vacuum hogging / holding system p.40
- 41. The Turbine Island Agenda 1 Alstom in Nuclear 2 Turbine Island Basics 3 Turbine Island – Key Products & Solutions The main pumps 4 p.41 Recent Projects
- 42. Key Components Pumps for Nuclear Plants Essential 8 service pump Open/closed loop 7 cooling pump 6 Residual heat removal pump 3 6 2 5 7 4 1 Concrete volute circulating water pump 1 p.42 Condensate extraction pump 2 Feedwater pump 3 Intermediate cooling pump 8 Vacuum pump 5 4
- 43. Nuclear Pumps Concrete Volute Circulating Water Pumps Flamanville 3 NPP : • Direct sea-water cooling of the condenser tubes • 2 x 50% pumps arrangement • 110 000 m3/h each (30,5 m3/s each) • 15,4 m head • Rotate at 151 rpm A A B • Civil engineering works on suction ducts (Sept. 2009) p.43
- 44. Nuclear Pumps Concrete Volute Circulating Water Pumps • Flamanville 3 CWP impeller heat treatment (photo credit: Ferry Capitain) p.44
- 45. The Turbine Island Agenda 1 2 Turbine Island Basics 3 Turbine Island – Key Products & Solutions 4 p.45 Alstom in Nuclear Recent Projects
- 46. ARABELLE™ References Flamanville 3 – 1 x 1750 MW • Nuclear reactor: EPR (PWR) • Turbine type, output: ARABELLE 1700, 1 x 1750 MW • Generator type: GIGATOP 4-pole • Steam parameters: Live steam: 75 bar / 290°C Exhaust: 46 mbar • Customer: EDF • Country: France • City / region: Normandy • Schedule: p.46 order year comm. year 2006 2016 Unit 3
- 47. ARABELLE™ References Flamanville 3 – 1 x 1750 MW p.47
- 48. Flamanville 3 – 1750 MWe ARABELLE™ - Turbine & Generator • Turbine HP/IP rotor entering balancing pit, Belfort factory, France p.48
- 49. ARABELLETM References Flamanville 3 – 1 x 1750 MW • Generator rotor p.49
- 50. Flamanville 3 – 1750 MWe ARABELLE™ - Turbine & Generator • Generator test, Belfort factory, France p.50
- 51. Flamanville 3 – 1750 MWe ARABELLE™ - Turbine & Generator Site in January 2013 p.51
- 52. ARABELLE™ References Ling Ao phase II – 2 x 1080 MW • Nuclear reactor: CPR1000 (PWR) • Turbine type, output: ARABELLE 1000, 2 x 1080 MW • Generator type: GIGATOP 4-pole • Steam parameters: Live steam: 64 bar / 280°C Exhaust: 56 mbar • Customer: DEC for LDNPC • Country: China • City / state: Dapeng / Guang-Dong • Schedule: p.52 order year comm. year 2005 2010 & 2011
- 53. ARABELLE™ References Ling Ao phase II – 2 x 1080 MW p.53
- 54. ARABELLE™ References Ling Ao phase II – 2 x 1080 MW p.54
- 55. ARABELLE™ References Ling Ao phase II – 2 x 1080 MW p.55
- 56. ARABELLE™ References Ling Ao phase II – 2 x 1080 MW Synchronized in July 2010, ahead of schedule Measured output level above guarantee Ling Ao 3, China - 1080 MW p.56