SGT-750 Siemens Gas Turbine

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Meet the SGT-750Proven technologyPerfected results37 MW

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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)

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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

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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