sgt-750 siemens gas turbine
TRANSCRIPT
Page 1 © Siemens AG 2010. All rights reserved
Meet the SGT-750Proven technologyPerfected results37 MW
Page 2 © Siemens AG 2010. All rights reserved
SGT5-4000F
SGT6-5000FSGT5-2000ESGT6-2000E
SGT-800
SGT-700SGT-600SGT-500SGT-400
SGT-200
SGT5-8000H
SGT-100 5
287
198
168
47
3125
1713
7
113
375
8SGT-300Indu
stria
l Tur
bine
sU
tility
Tur
bine
sSiemens Industrial gas turbine range
SGT6-8000H 266
Filling the gapFilling the gapSGT-750 36
(MWe)
Page 3 © Siemens AG 2010. All rights reserved
SGT-750 General description
PowerPower Efficiency Efficiency ShaftShaft 37.1 MW 37.1 MW 40.0% 40.0% ElectricElectric 35.9 MW35.9 MW 38.7%38.7%Comb. cycleComb. cycle 47.7 MW 47.7 MW 51.7%51.7%
Free power turbineFree power turbine6 100 rpm6 100 rpm
1313--stage compressorstage compressor 4th generation DLE technology4th generation DLE technologyDualDual--fuel capabilityfuel capability
ExhaustExhaustMass flow Mass flow 113 kg/s113 kg/sTemperature 462 Temperature 462 ººCC
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Compressor
13 stagesPressure ratio 24:1
2 variable guide vanes 3 Compressor Bleeds
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SGT-750 Inlet and Compressor
Borescope ports for each stage
Visual access to compressor inlet during
operation
Electrical starter motor in front of compressor
Low-weight inlet plenum on wheels for easy
maintenance
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8 combustor cans
Combustor system
4th generation DLE burner Single-digit NOx capability
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Combustor design
Convective combustor cooling
Combustor can
Transition duct
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4th generation DLE burner
Combustion air pathSecond main gas fuelFirst main gas fuelPilot gas fuelRPL gas fuel
(Rich Pilot Lean)
Single digit NOx capability
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Combustor Verification
Experience from Siemens gas turbine fleet
Atmospheric Test Combustion SystemIgnition Tests and Combustion TestsFlow tests
Medium-pressure Test Optimization of burnerFlame-detector testIgnition test
High-pressure Test Burner testsCombustion test
Flow test of casing, burnerFlow test of casing, burnerand combustorand combustor
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Turbine
Two-stage air-cooled compressor turbine
Two-stage counter-rotatingUn-cooled power turbine
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Compressor Turbine
Bolted to compressor rotor
Conventional materials Two turbine stagesIR camera access to blades 1 & 2
Brush seals
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SGT-750 Infra-red camera ports
Blade
IR camera portA temperature-sensitive camera can measure the temperature pattern of each blade and if the temperature is out of range measures can be taken.
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SGT-750 Industrial power turbine
2-stage high-speed (6100 rpm) Power TurbineCompact and efficientSuitable for both power generation and mechanical drivePower turbine inlet guide vane can be set for different ambient conditions
Two tilting pad (long life) bearings
Two shrouded uncooled blades and honeycomb seals
High efficiency diffuser
Bolted rotor
Page 14 © Siemens AG 2010. All rights reserved
Package layoutPower generation
Foot printPower generation 20,3 x 4,8 m
Air intake
Auxiliary room
GT room Maintenance door
Main Gear
AC-generator
Maintenance crane
Exhaust
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Footprint:Driver package 12.8 x 4.3 m
Package layoutMechanical drive
Same driver as PG
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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 3D model and the instrumentation exchange was verified in the 3D 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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Maintenance
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Excellent maintenance concept for lowest life-cycle cost
• Long time between major overhauls TBO 68,000 EOH• Highest uptime - only 17 maintenance days in 17 years• 24-hour gas generator exchange in the swap concept• On-site or swap service concept• Increased TBO at part-load operation• Complete compressor reblading without rotor removal
possible• No casing disassembly for replacement of combustion parts• Modular build-up for easy maintenance on site
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Maintenance Plan17 downtime days or 48 days on-site
Normal Maintenance 1 day A-inspection (Borescope)
12 days B-inspection (Hot Section Parts
Replacement)
16 days C-inspection (Overhaul)
Fast Maintenance1 day A-inspection (Borescope)
2 days B-inspection (Gas Generator Exchange)
5 days C-inspection (Gas Generator Exchange
with Power Turbine Inspection)
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Highest uptime in classHigh power output and high efficiencySiemens well proven DLE technology gives reliable combustionSmart service concept with 68’ hours between major overhauls
SGT-750 Summary
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Thanks for your attention