19th SYMPOSIUM ON INDUSTRIAL APPLICATIONS OF GAS TURBINES
SGT-750 - 37 MW GAS TURBINE 11-IAGT-305 Anders Hellberg Siemens
Presented at the 19th Symposium on Industrial Application of Gas Turbines (IAGT) Banff, Alberta, Canada - October 17-19, 2011 The IAGT Committee shall not be responsible for statements or opinions advanced in technical papers or in symposium or meeting discussions.
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved.
Utility Turbines
Siemens industrial gas turbines SGT5-8000H
375
SGT5-4000F
287
SGT6-8000H
266
Industrial Turbines
SGT6-5000F SGT5-2000E SGT6-2000E SGT-800 SGT-750 SGT-700 SGT-600 SGT-500 SGT-400 SGT-300 SGT-200 SGT-100
198 168 113 47
36
Filling the gap
31 25 19 15 8 7 5
(MWe)
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
SGT-750 Launch 18:th November
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
SGT-750 General description 13 stage compressor - pressure ratio 24:1
4th generation DLE technology - NOx on gas 15 ppmv (15% O2)
Free power turbine 6 100 rpm
- NOx on liq.(wet) 42 ppmv (15% O2)
Performance Power, Efficiency Exhaust temp Mass flow
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Shaft 37.1 40.0
Electrical 35.9 MW 38.7 % 462 oC 113 kg/s
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
SGT-750 Program – High Performance and Flexibility
Generic
Applications
Options Inlet filtration
Static Driver module
Power generation
Lube oil pump
Mechanical Gas Turbine Page 5
October 2011
Jet pulse
Electric
Mechanical drive Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
High level of reliability
Development of reliability model to ensure a GT-design meeting reliability requirements Improve start reliability Development of spare part concept to minimize downtime for customers
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Example only
The reliability model for the package running on gas fuel
Package MTBF=3699.76 h MDT=43.8375 h OR
Generator MTBF=44642.5 h MDT=86.6191 h
Gas Fuel System MTBF=16668.3 h MDT=74.6841 h
Air Intake Filter System MTBF=55944.1 h MDT=37.8059 h
Ventilation System MTBF=48830.5 h MDT=125.804 h
T GENERATOR
T GFS
T AFS
T VS
Purge Air System MTBF=525688 h MDT=45.0285 h
Gas Detection System MTBF=122279 h MDT=24.0015 h
T PAS_FOR_GFS
T GDS
T FDES
T IAS
Control System MTBF=16184.4 h MDT=2.53032 h
Lube Oil System MTBF=38317.4 h MDT=51.2398 h
Power Supply Single Line MTBF=24365.8 h MDT=24.011 h
Power Supply System MTBF=14484.4 h MDT=24.5666 h
T CS
T LOS
T PS1
T PSS
Fire Detection-Extinguishing MTBF=213542 h MDT=23.9429 h
Instrumentation Air System MTBF=35398.4 h MDT=42.0877 h
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Built in serviceability
In the full scale 3D model it was discovered that it was difficult and time-consuming to exchange instrumentation on the power turbine. Solution:
The Power turbine was redesigned, utilizing the 3-D model and the instrumentation exchange was verified in the 3-D model.
This is an example of how uptime is increased using new design tools.
Core engine 3-D model in studio
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Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Technical
Protection notice / Copyright notice Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved.
SGT-750 Inlet and Compressor
2 Variable guide vanes Visual access to compressor inlet during operation
Electrical starter motor in front of compressor
Low weight inlet plenum on wheels for easy maintenance Page 9
October 2011
Boroscope ports for each stage
3 Compressor Bleeds
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Combustor system Single-digit NOx capability Can combustor system 4th generation DLE burner Wide turndown ratio
8 Combustor cans
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Combustor layout Based on latest Siemens technology Technology proven in other Siemens gas turbines
4th generation DLE burner Convective combustor cooling Combustor Rich Pilot Lean Burner
Transition duct
Pilot Burner Main Burner
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Combustion Verification Experience from Siemens gas turbine fleet Atmospheric Test Combustion tests Ignition Tests Flow tests Medium Pressure Test Optimisation of burner Flame detector test Ignition test High Pressure Test Burner tests Combustion test
Flowtest of casing, burner and combustor
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Compressor Turbine
Conventional materials
Two turbine stages IR camera access to blade 1 & 2
Bolted to compressor rotor
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October 2011
Turbine blade 1 cooling based on Siemens experiences
Brush seals Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
On-line turbine blade monitoring Direct IR imaging of moving gas turbine blades
Row 1 & 2 blades
20C isolevel temperature mapping 3D model of blade
3D temperature mapping
Change of 3D view point for cracks detection
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
SGT-750 Industrial power turbine •2-stage high-speed (6100 rpm) Power Turbine •Compact and efficient •Suitable for both power generation and mechanical drive •Power turbine inlet guide vane can be set for different ambient conditions Two shrouded uncooled blades and honeycomb seals
Bolted rotor Page 15
High efficiency diffuser
Two tilting pad (long life) bearings October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
SGT-750 Package Mechanical drive and Power generation
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved.
Layout Air intake
Exhaust
Foot print Driver package 12,8 x 4,3 m Power generation 20,3 x 4,8 m
AC-generator
Main Gear
Maintenance crane Auxiliary room GT room Maintenance door Page 17
October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Maintenance
Protection notice / Copyright notice Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved.
Maintenance concept for lowest life cycle cost
Long time between major overhaul TBO 68 000 EOH Highest up-time only 17 maintenance days in 17 years 24-hour GG exchange in the swap concept On-site or swap service concept Increased TBO at part load operation Wide program for long-term service agreements
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Outstanding serviceability key to high availability
3-years work in a 3DStudio Visible ”Jack” and ”Jill” simulates access Working team; designers engineers, assembly technicians, service engineers Many improvements!
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Serviceability means access everywhere Borescope insp.
VGV insp.
Skid equipment
Burner
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October 2011
Outlet
Engine supports
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Maintenance Plan, 17 years Level “C” Level “B” Level “A” 34
68
102 136 Eq. Op. Hrs x 1000 at DPL
Yearly On-line check 1
2
3
4
5
6
7
8
9
10
11
12
13
14 15 16 17 Year, calender time
Fast maintenance (17 days)
Normal maintenance (48 days)
1 day A-inspection (boroscope)
1 day A-inspection (boroscope)
2 days B-inspection (core exchange)
12 days B-inspection (hot section parts
5 days C-inspection (core exchange with power
replacement)
turbine inspection)
16 days C-inspection (overhaul)
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
SGT-750 Summary
Highest Power in class and high efficiency Highest availability in class Siemens well proven DLE technology gives reliable combustion Smart service concept to for highest uptime
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October 2011
Copyright © Siemens Industrial Turbomachinery AB 2011. All rights reserved. Anders Hellberg Siemens EOIP TI
Thank you for your attention!
Anders Hellberg SGT-750 Product Manager Siemens EOIP TI E-mail:
[email protected] Webb SGT-750
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October 2011
For internal use only / © Siemens AG 2008. All rights reserved. Copyright © Siemens Industrial Turbomachinery AB 2011. Anders Hellberg Siemens EOIP TI
