ALSTOM Atomenergomash

ALSTOM Atomenergomash LLCdeveloping ARABELLE based TurbineIslands for newly constructed andretrofitted nuclear power plants.26.10.2011A.M. Tsvetkov, ALSTOM Atomenergomash LLC

AAEM LLCALSTOM nuclear referenceNuclear UnitsGE15%Hitachi3%MHI4%Turboatom9%Others6%Siemens23%Calvert Cliffs 31 x 1700 MW(engineering& long lead timeitem reservation)Chooz B2 x 1550 MWCivaux2 x 1550 MWFlamanville 31 x 1750 MWBHEL2%Ansaldo2%ALSTOM30%SKODA4%Toshiba2%26 ARABELLE are now under construction oroperation worldwideLing Ao 3+42 x 1100 MWHong Yan He4 x 1100 MWNingde4 x 1100 MWTianwan 5+62 x 1100 MWTaishan2 x 1750 MWFangjiashan2 x 1100 MWFuqing4 x 1100 MWATOMEX Europe 2011, p. 3

AAEM LLCParticipation in the new generation NPP projectsDistinctive features of new generation NPPs:• increased thermal output of the reactor - up 3300 MW• increased electric output – not less than 1255 MW• increased efficiency of turbine generator unit – up to 38 %• application of ARABELLE turbine generator unit with 2 LPC with LSB 1730 mm(69”)• application of HEAS and district heating 500 MW• 3D model of the turbine hallMain objectives:• maximum fleet standardization of equipment• reduced construction period• reduced cost of construction and maintenanceATOMEX Europe 2011, p. 4

AAEM LLCARABELLE - standardized technical solutionsTo Match Any Commercially Available ReactorEPRESBWR/ABWRVVER 1000 AP 1000ATOMEX Europe 2011, p. 6

AAEM LLC – integrator of turbine hallHP&LPFeedheaters• Maximum unit output:- 1550MW in operation- 1750MW under construction• Longest last stage blade:- L = 1750mm• Maximum steam turbine efficiency:- Gross efficiency > 37 %4-Pole generatorExtractionpumpsCirculatingwater pumps• Maximum Steam turbine safety and reliability:- Reliability 99,97%• Low construction costs thanks to compactdesign• Low total operation costLP RotorCondenserMSR assembly• The largest reference listATOMEX Europe 2011, p. 7

AAEM LLCARABELLE - design featuresIP ExhaustIndependent LP moduleThe 4-pole generator2- stage MSRATOMEX Europe 2011, p. 9

AAEM LLCHigh reliability indicatorsARABELLE - Extensive positive feedback of experienceATOMEX Europe 2011, p. 10

AAEM LLCHeat sink, district heating and HEAS optimisationModular condenserLP turbine selectionMain circulating water pumpCondensate pumpATOMEX Europe 2011, p. 13

AAEM LLCHeat sink optimisation effectsTurbine hall integration for nuclear applicationsMake the Best Use out of the Nuclear Reactor• Cold-End optimising is key for plant economic performance– Direct impact on Cost of ElectricityHeat sink optimisationMaximum Owner'sbenefitHP IP LP'sCoolingTowerMSRNuclearSteamSupplySystemDeaeratorMSR CRpumpsFeedwaterpumpsFeedheatersCR pumpsCondenserCirculating watersystemCondensateExtraction systemOptimumVacuumBackpressure in mbarEvaluated MWeExtra net MW * Evaluation factorInvestment CostInvestment total cost basedOwner's BenefitNet present valueATOMEX Europe 2011, p. 14

AAEM LLCALSTOM’s experience in conventional island equipment retrofitWorld leader in component and integrated retrofitsComponent retrofitsIntegrated retrofits1% 6%2%1%4%2%Alstom42%2% 6%12%OthersOthers16%4%9%Alstom64%3%26%Market share analysis represents period FY04-FY08.Source: Internal780 cylinders retrofitted (320 retrofits of third party machines)Leading the concept of integrated retrofits for turbine islandRetrofit AAEM 2009.– 28/09/2009 – Page 15ATOMEX Europe 2011, p. 15

AAEM LLCRetrofit. Design procedureLazer equipment utilization at siteIntegrated instruments fordesign and calculationsLM7LM5LM4LM6LM3LM1LM2ATOMEX Europe 2011, p. 16

AAEM LLCRetrofit. Design procedureInterface analysis for steam turbines of the other manufacturersATOMEX Europe 2011, p. 17

AAEM LLCTurbine retrofits. Technical optionsOriginal designDouble flow cylinder- reactive type bladingSingle flow cylinder – reactive type bladingInner casing components optimizationVarious retrofit options implementedTurbine producer not involvedCylinder replacementTargeted output achieved and turbine problemscured thanks to the selected technical retrofitoptionsATOMEX Europe 2011, p. 18

Generators retrofitNuclear Rewind, Upgrade & RetrofitCapabilityPerformance (MVA, MVAR, efficiency, reliability …)Outage timeExtended life timeReplacementGeneratorsIntegrated solutions to fit newgenerators within existingenvironment, requalification ofauxiliaries, new excitationsystems, functional scopeGeneratorMid-Sections“Plug and operate” solutions :stator replacement, rotorreplacement or rewind, newexcitation systems,requalification of auxiliariesGeneratorRewinds /UpgradesStator rewinds, rotor rewinds,new excitation systems,technology changes, additionalloops (water)MaintenanceSolution depending on customer need.Parts and Field ServicesATOMEX Europe 2011, p. 19

AAEM LLCRetrofit. Consolidated data for the operated turbine• K-1000-60/1500-2 - 1500rpm• 1 x HP double flow module- 2 x 7 stages- Active type blading• Disc-and-diphragm design• Welded rotor- Полный подвод пара• 3 x LP double flow module- 2 x 7 stages- Active type blading• Disc-and-diphragm design• Welded rotorLast stage blade: 1450mm (57”) на f2700mm – 18,9m 2ATOMEX Europe 2011, p. 20

AAEM LLCBalakovo NPP RetrofitHPC and LPC scope optionsNew HP cylinder• Active type blading (disc-and-diaphragm design)- Finalization of the blading type active versusreactive depends on ratio expenses-profit• 9 stages per flow• Preliminary scope of works includes:- Bladed rotor- Diaphragm- Diaphragm sockets for 4-9 stages(operated 1-3 stage sockets of diaphragmsremain unchanged)• Welded rotor• Full arc admissionNew LP cylinder• Reactive blading• 12 stages per flow• Preliminary scope of works includes:- Rotor- Stationary and moving blades- New sockets of blades – inner casing shallremain unchanged (subject to additionalestimation)• LSB 57”• Drum type welded rotorATOMEX Europe 2011, p. 21

Conclusion1. Currently 33 out of 38 nuclear units rated 900 MW and over are equipped withlow speed turbines. 26 of them are based on ARABELLE technology.2. Tests of the 1000MW ARABELLE Half-Speed Turbine Plant conducted in the3 rd power unit at Ling-Ao NPP (China) in 2010 have shown an electric powerincrease of above 8% versus full-speed double-flow turbine design given thesame conditions on-site.3. According to Alstom/AAEM research, the Customer’s extra income in terms ofreliability, availability, efficiency and installation and commissioning costs of theARABELLE equipment versus full-speed equipment would vary in thefollowing range: € 360 million per unit at the rate of € 25/MWh, or € 430 millionper unit at the rate of € 30/MWh.4. 2011 agreement is reached to involve AAEM with ARABELLE technology forthe participation in new nuclear units to be constructed in Russia and abroad.5. Basing on Alstom engineering solutions, AAEM adds value to its competence inretrofitting equipment for nuclear power plants in operation.ATOMEX Europe 2011, p. 22

ATOMEX Europe 2011, p. 23Thank you for your attention!