High Efficient Peak Power on Demand

Transcription

1 High Efficient Peak Power on Demand Page 1 POWER-GEN Middle East, February 6-8, 2012, Qatar, Doha Jan Dirk Beiler Senior Performance Engineer Development Lead for Wet Compression Modernization and Upgrade Engineering Peter Trauner Head of Performance Increase Advanced 50Hz Frames Siemens AG All rights reserved. January 2012 Jan Beiler / Peter Trauner Energy Sector Siemens / Services AG All AL: rights N ECCN: reserved. N

2 High Efficient Peak Power on Demand Power-Gen Middle East 2012 High efficient Peak Power on demand Contents Need for power on demand Jan Dirk Beiler Senior Performance Engineer Development Lead for Wet Compression on 50Hz Service Frames Modernization and Upgrade Engineering Peter Trauner Head of Marketing Performance Increase for Advanced 50Hz Frames Wet Compression description Performance benefits Experiences Conclusion Page 2

3 Need for Power on Demand Rising need for power on demand Solutions for flexible power on demand Backup power needed High flexibility Power need for seasonal or daily peak time Gas turbine plants Wet Compression? Modernizations and upgrades for existing plants Page 3

4 High Efficient Peak Power on Demand Power-Gen Middle East 2012 High efficient Peak Power on demand Contents Need for power on demand Jan Dirk Beiler Senior Performance Engineer Development Lead for Wet Compression on 50Hz Service Frames Modernization and Upgrade Engineering Peter Trauner Head of Marketing Performance Increase for Advanced 50Hz Frames Wet Compression description Performance benefits Experiences Conclusion Page 4

5 Wet Compression Short Introduction Page 5

6 Wet Compression Hardware Scope Page 6

7 High Efficient Peak Power on Demand Power-Gen Middle East 2012 High efficient Peak Power on demand Contents Need for power on demand Jan Dirk Beiler Senior Performance Engineer Development Lead for Wet Compression on 50Hz Service Frames Modernization and Upgrade Engineering Peter Trauner Head of Marketing Performance Increase for Advanced 50Hz Frames Wet Compression description Performance benefits Experiences Conclusion Page 7

8 Wet Compression Peak Power on Demand Flexible reaction on power demand Stepless power adjustment within operation range High reserve power potential Limits to the performance Maximum mass flow (design) Shaft limit reached 15 75% of design mass flow % of design mass flow Power increase by Wet Compression [% of base load power] Electrical components Combustion stability Shaft limit (mechanical) Auxiliary systems Hardware configuration 9 8 Minimum mass flow (start) Surge limits Maximum power increase has to be evaluated site specific Ambient temperature [ C] Page 8

9 Performance SGT5-4000F First Time Implementation Gas turbine delta power output with Wet Compression: Up to 16% of base load power Gas turbine delta efficiency with Wet Compression: Up to 2.1% of base load efficiency Start mass flow Water mass flow : Up to 10.2 kg/s Wet Compression performance measured at first time application for 30 C, 60% r.h. Page 9

10 Wet Compression - Influence of Relative Humidity Example: Variation of humidity at 30 C ambient temperature Comparison between inlet cooling and Wet Compression (calculation for SGT5-2000E) Wet Compression is only little affected by humid air conditions Page 10

11 High Efficient Peak Power on Demand Power-Gen Middle East 2012 High efficient Peak Power on demand Contents Need for power on demand Jan Dirk Beiler Senior Performance Engineer Development Lead for Wet Compression on 50Hz Service Frames Modernization and Upgrade Engineering Peter Trauner Head of Marketing Performance Increase for Advanced 50Hz Frames Wet Compression description Performance benefits Experiences Conclusion Page 11

12 Wet Compression systems are running more than 50 x worldwide: More than 35 x on following frame types: SGT6-2000E SGT6-3000E SGT6-5000F 5 x SGT5-2000E 2 x SGT5-4000F 3 x SGT5-4000F 6 x SGT5-4000F (planned) Experiences 4 x SGT5-4000F (Grid) 2 x SGT5-2000E 2 x SGT5-4000F (Grid) Page 12

13 Gas Turbine Safety using Wet Compression Specific CFD-calculation to optimize the spray rack Advanced compressor coating to minimize corrosion 3-staged filter concept Fully integration in the gas turbine control Gas turbine safety Integrated safety functions to ensure operation within expectations Optimized operation regimes to minimize effects Page 13

14 Operation Experience Compressor Operation experience with Wet Compression on SGT5-2000E since 2004 : No pitting corrosion could be found at SGT5-2000E No tendency to pitting corrosion Coating loss on the leading edge and on the pressure side, but coating stays intact in the areas where salt residuals are left on the blades and vanes Lasting corrosion protection The leading edge gets rougher (needle structure) but no significant shortening of the blade width by erosion Base blade material not weakened Page 14

15 High Efficient Peak Power on Demand Power-Gen Middle East 2012 High efficient Peak Power on demand Contents Need for power on demand Jan Dirk Beiler Senior Performance Engineer Development Lead for Wet Compression on 50Hz Service Frames Modernization and Upgrade Engineering Peter Trauner Head of Marketing Performance Increase for Advanced 50Hz Frames Wet Compression description Performance benefits Experiences Conclusion Page 15

16 Siemens Gas Turbine Modernization SGT5-4000F Wet Compression Customer needs in general Power Efficiency Benefits can include: Up to 30 MW power output improvement * Power on demand Reliability & availability Operational flexibility Reduction of maintenance costs Emission reduction Higher operational flexibility Wet C gives you additional electricity of up to 75,000 MWh/year. Assumption: 30MW power improvement, peak load operation (250 days/ year, 10 h/day) * Subject to specific technical plant evaluation, expected values with test ISO condition. Page 16

17 Thank you for your attention Jan Dirk Beiler Senior Performance Engineer Development Lead for Wet Compression Modernization and Upgrade Engineering Page 17 Peter Trauner Head of Marketing Performance Increase for Advanced 50Hz Frames

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