© Siemens AG 2014 All rights reserved. VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformThe next generation of reliable and highly efficient Siemens industrial steam turbines
Dr. Lutz Völker / Katja Riebisch - Siemens AG - Industrial Power
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 2VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Industrial Steam Turbine Applications
Electrical Power GenerationBiomass power plantsWaste combustion power plantsCombined cycle power plantsHeat and Power plantsSolar power plants
Steam ConditioningPulp and Paper industryMining industryChemical and petrochemical industry
Mechanical DrivesPumpsBlowerCompressors
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 3VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
The Heritage of Siemens Industrial ST Technology
0 100 200 300
SST-900
SST-700
SST-800
SST-600
SST-500
SST-400
SST-300
SST-200
SST-150
SST-120
SST-110
SST-100
SST-060
SST-050
SST-010
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 4VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Motivation
External requirementsUse of state of the artdesign allowing significant gainsExtended features e.g. optimized start-up timeExtended operating capabilitiesIncreased flexibility to adapt to customer needsIncreased efficiencyImproved economical solutions
Internal driversAcquisition history led to overlap in product portfolio and power rangeHuge variation of Steam Turbine Types incl. the maintenance of the toolsImplementation of advantages of all families into one product Incorporation of new state of the art features
Enhanced Platform
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 5VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformCustomization
Turbine configurations including a high degree of flexibility to realize optimal turbine solutions according customer needs
Fix speed direct / geared drive and variable speed turbine solutions including different exhaust and installation arrangementsHigh flexibility in number of steam extractions (controlled and/or uncontrolled)High flexibility in the extracted total mass flow / volumetric flow conditionsHigh flexibility in the electrical output power level according customer requirementsDifferent standard turbine arrangements and installations allow customization
Enhanced Platform
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 6VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformBuilding Block Approach
Using predefined components to cover different turbine solutions and applications
The Enhanced Platform is not a product lineThe Enhanced Platform is a technology platform allowing to realize different product lines such as customized and standardized turbine configurations as single and multi casing solutionsCombination of benefits from all Siemens product lines considering state of the art developments/technologiesBased on the Enhanced Platform technology the Siemens product lines will be improved and extended in their application fields
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 7VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformKey Parameters
Power output 5 – 250 MWSpeed 3000 – 18000 rpm
Live steamInlet pressure/temp 165 bar / 565 ºC Inlet pressure/temp 2393 psi / 1049 ºF
Controlled extractions (up to 2)Pressure, ext. valve 72 bar / 1044 psiPressure, int. valve 55 bar / 798 psiTemperature 480 ºC / 895 ºF
Bleeds (up to 6) 85 bar / 1233 psi
Exhaust conditionsBack-pressure 80 bar / 1160 psiCondensing 1.0 bar / 15 psiDistrict heating 3.0 bar / 43 psi
ImprovementsPower output +75 MWInlet temperature +25 KExtraction pressure +20 bar / 290 psi
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 8VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformModularization
Maximum flexibility due to standardization at sub-part level
Steam Admission Section
Intermediate Section
Exhaust Section
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 9VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformTurbine Configurations
Different casing configurations allow optimized customer solution focused on efficiency and cost
Optimized casing structure provides reduced start-up timesDifferent design solutions provides customized competitive turbine solutionsSpecialized options allow high temperatures with short heat-up times as well as competitive solutions for low steam parameters
Front Steam Admission
Center Steam Admission
Conventional design steamadmission
Improved steam admission design including homogenous casing structure
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 10VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformBlading and Sealing
Improved blade profiles and material know-how provide highest efficiency
Improved cylindrical HP blades and conical (twisted) IP blades allow longer airfoils Improved sealing systematic allows more sealing strips per blade row at both moving and stationary3D optimized HP/IP blades reach highest efficiency, still allowing simple processes in sales, engineering, and production due to predefined sub-componentsApplication of well proven Standard stages for both fix and geared application
Standard SST-xxx (old) customized blade path according customer request (load points)
Standard SST-xxx Enhanced Platform(improved) customized blade path according customer request (load points)
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 11VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformStandard Stages
Best solutions according customer boundary conditions and requirements
Different Standard Stages available within the Enhanced Platform building block system for optimal solutions
E&EL standard stages for 50 and 60 Hz applicationC blades for geared applicationV and SK for variable speed applicationHS for variable speed at high maximum operational speed (Titanium SK blading)
Typ E&EL Beschaufelung
Typ SK/HS Beschaufelung
TypVBeschaufelung
Typ C Beschaufelung
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 12VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformExtractions
Full scope of extractionpossibilities at even higherparameters provides additionaloptions for thermal cycles
Up to 7 extractions in total per casingPressure up to 72 bar/1044 psiControlled extractions (up to 2)
External valves 72 bar/1044 psi (flexible valve combinations)Nozzle group control 55 bar / 798 psi(up to 4 internal valves)Adaptive stageGrid valve
Uncontrolled extractions / bleeds (up to 6)
External valves
Adaptive stage Grid valve
Internal valves
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 13VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformExhaust Constructions
Extended range of exhausts allows larger condensing stages and higher back-pressures
Radial and axial exhaust casings for condensing applicationsExhaust pressure up to 1.0 bar in combination with air- or water-cooled condensersLast stage blade sizes up to 8.7 m² (fixed speed) respectively 4.5 m² (geared or mechanical drives)Various possibilities for bleeds
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 14VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformDesign Philosophy and Criteria
Applying State-of-the-Art design philosophies and tools to ensure best technical solutions and reliability
Design of steam turbine components according to expected life time and service load combinationDesign and operation of the steam turbine according to total exhaustionConsideration of both
Steady state operationNon-steady state operation
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 15VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformTest & Verification
Extended test and verification using a real steam
Full load test using a 10 MW power back-pressure extraction turbineInvestigation of
Dynamic Blading behaviorPerformance measurement and validation of the loss modelControlling behavior using the butterfly inlet
Steam Turbine Key DataOut power: 10 MWLive steam conditions: 70 bara / 476 ºCOperational speed: 9000 rpmLoad control: water friction brake
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 16VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformImproved CO2 Footprint
Optimized material application and improved performance lead toa CO2 emission reduction ofup to 15% over life time
Long-term experiences in material behavior lead to efficient material inventory for all components and result in a total turbine weight reduction Applying pre-standardized components leads to reductions in both engineering and manufacturing effortLess total weight leads to benefits for both packaging and logistic
Enhanced PlatformBuilding Block(SBB)
[tC
O2eq
]
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 17VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced PlatformConclusion
OptimierteEffizienz
Higher live steam parameter
Long life cycle – increased life time
Improved flexibility for optimized customer solutions
Best technology features under common umbrella
Extensive tested and verified first turbine
Improved efficiency (up to 2 %)
Improved design for reduced start-up times
Improved CO2 footprint (15 % reduction of CO2 emissions)
Dr. Lutz Völker
© Siemens AG 2014 All rights reserved.
Page 18VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Enhanced Platform
Dr. L. Völker / K. Riebisch
© Siemens AG 2014 All rights reserved.
Page 18VGB-Fachtagung „Dampfturbinen und Dampfturbinenbetrieb 2014“
21./22. Mai 2014, Rhein-Mosel-Halle, Koblenz
Thank you for your attention!