SGT-500 Industrial Gas Turbine

Power Generation: (ISO) 18.47 MW(e) Base Load, 19.38 MW(e) Peak Load

The Siemens SGT-500 industrial gas turbine is a highly dependable gas turbine
with excellent fuel flexibility. It combines the reliability and robustness of an
industrial design and low emission levels of the latest turbine technology for
a wide variety of fuels and applications at low operational costs.

The SGT-500 gas turbine has been serving additional liquid and gaseous fuels,
the industrial power generation segment including the growing flora of environ-
for over 50 years. Introduced in 1955, mentally friendly fuels. The SGT-500
the turbine was designed for heavy can be equipped with several emissions
oil operation under tough conditions. reduction alternatives, including Dry
It is used widely in industrial power Low Emissions (DLE) combustion.
generation, marine as well as oil and
gas applications, whether onshore or Outstanding operational reliability
offshore, floating or fixed. With world class start-up and operation
Due to its large roomy combustors and reliability performance, the SGT-500 is an
low firing temperature, the SGT-500 has excellent solution for emergency power
the capability to operate on a wide range applications. Its low firing temperature
of fuels. Experience includes gas and contributes to an impressive maintenance
heavy fuel oils, naphtha, crude oil, high program. At operation on full load the
aromatic and hydrogen-rich gases, as well standard time between major overhauls
as gases with high content of sulfuric acid. is 80,000 hours. At 94 % load the interval
In addition, the combustor and fuel system can be extended to 160 000 hours, equal
have the potential for easy adaptation to to 18 years of operation.

Industrial Gas Turbines

Answers for energy.

SGT-500 Industrial Gas Turbine

SGT-500 core engine in workshop.

Technical specifications Gas turbine:

Overview Bearings Key features
• Power generation: 18.47 MW(e) • Hydrodynamic radial- and thrust Robust design – long engine life
• Electrical efficiency: 32.9 % bearings of tilting pad type High availability/reliability
• Heat rate: 10,946 kJ/kWh • Vibration and temperature monitoring Low fuel-gas pressure requirement
(10,375 Btu/kWh) No advanced sealings, resulting in
Lubrication
• Power turbine speed: 3,600 rpm minimal deterioration and maintained
• Compressor pressure ratio: 13:1 • Lubricating oil tank integrated into efficiency
gas turbine skid Dry Low Emissions (DLE) system option
• Exhaust gas flow: 96.4 kg/s (212.6 lb/s)
• AC-driven auxiliary pump Low starting power (<160 kW)
• Exhaust temperature: 376° C (709° F)
• DC-driven emergency pump Fast start capability (~3 minutes)
• NO x emissions
(with DLE corrected to 15 % O 2 dry) • AC-driven lube oil pumps with Dual-fuel
- Natural gas: ≤ 42 ppmV DC backup
Competitive with dual-fuel
• Air- or water-cooled lube oil coolers reciprocating technology
Axial Compressor
Gearbox Marine classified
• Two multi-stage (10 + 8 LP/HP) axial No methane slip
flow compressors • Parallel-shaft gear of double
• Compressor rotors of bolted design helical design
Maintenance
• Corrosion-coating available • High-speed shaft 3,600 rpm
(nominal speed for PG) Extremely low and predictable
maintenance costs
Combustion • Low-speed shaft 1,500 rpm (50 Hz)
or 1,800 rpm (60 Hz) Easy on-site maintenance possible
• 7 can-annular combustion chambers - complete modules can be swiftly
• Conventional combustion system • 4 radial bearings of sleeve type
exchanged
- Steam or water injection for emissions Direct exchange of gas generator
Generator
control and power augmentation possible
• Dry Low Emissions (DLE) combustion • 4-pole design
- Core can be air-freighted
system option (gas only) • Rated voltage: 10.5 kV/11.0 kV/13.8 kV
First overhaul after 40,000 hours
• 50 Hz or 60 Hz (80,000 hours between major
Turbine • Protection IP54 overhauls)
• Two compressor turbines (1 + 2 HP/LP) • PMG for excitation power supply Lease-engine availability for
• Free power turbine of axial-flow design • Complies with IEC/EN 60034-1 planned overhauls
• 3-stage 3,600 rpm turbine standard Online wash available
Standardized concepts for time-based
Fuel System Starting
and cycle-based maintenance
• Natural gas - Liquid fuel - • Start and barring motor connected Staff training in operation and
Dual fuel - Heavy fuel to the LP rotor via a ratchet coupling maintenance
- Other fuel capability available
Control System 24/7 Siemens support
on request
Remote diagnostics
• Fuel-changeover capability at • Siemens Simatic control system
any load • Distributed inputs/outputs
• Load-rejection capability
• Fuel-supply pressure requirement:
18.0 bar(a) ± 0.5 bar (261±7 psi(a))
SGT-500 package in combined cycle configuration. Four SGT-500 units installed in Egypt to power an LNG plant.

Package: Cogeneration and combined cycle

Key features The SGT-500 is easily adapted to any cogeneration
Compact layout or combined-cycle plant layout. It has very low
environmental impact in both configurations.
State-of-the-art control system fulfills all
Thanks to high air flow, the SGT-500 has excellent
requirements for control and safety
steam-raising capability which yields high total
Can easily communicate with other efficiency in cogeneration.
control systems
In combined cycle, the SGT-500 has very high
DNV, LR and ABS certified packages
total efficiency independent of the fuel used.
Marine package with auxiliary drive When using HFO (heavy fuel oil) the SGT-500
system on lightweight frame offers outstanding emission performance and
FPSO package (Floating Production, half the maintenance cost compared to competing
Storage and Offloading) option technologies.
ATEX package option

Height: 9.2 m (30.2 ft)

Height to top of package: 9.3 m (30.5 ft)

Height: 5.1 m (16.7 ft)

ft)
(69.9
21.3 m
ngth:
age le
Wi rbine pack
dt Gas tu
(13 h: 4.
.1 0 m
ft)
SGT-500 standard power generation package

1 AC generator 5 Core engine

2 Speed reduction gear 6 Enclosure air inlet
3 Combustion exhaust 7 Combustion air inlet
4 Enclosure air outlet
SGT-500 Performance

Nominal generator output and heat rate

23 12.2
Conditions /assumptions:

21 11.8 Fuel: Natural Gas LHV, 46,798 kJ/kg (20,118 Btu/lb)

Generator output Altitude: Sea level
Generator output, MW

Ambient pressure: 1,013 bar (a) (14.7 psi (a))

Heat rate, MJ / kWh

19 11.4 Relative humidity: 60 %
Inlet pressure loss: 5 mbar (2” H 2 O
Outlet pressure loss: 5 mbar (2” H 2 O)
17 11.0
Fuel temperature: 5° C (41° F)

15 10.6
Diagram conversion factors:
Heat rate
To convert To Multiply by
° C ° F (° Cx9/5)+32
13 10.2 MJ/kWh Btu 949
-40 -30 -20 -10 0 10 20 30 40

Compressor inlet air temperature, ° C

Nominal exhaust mass flow and temperature

130 450
Conditions /assumptions:

120 400 Fuel: Natural Gas LHV, 46,798 kJ/kg (20,118 Btu/lb)
Exhaust mass flow
Exhaust temperature, ° C Altitude: Sea level
Exhaust mass flow, kg/s

Ambient pressure: 1,013 bar(a) (14.7 psi(a))

110 350 Relative humidity: 60 %
Inlet pressure loss: 5 mbar (2” H 2 O)
Outlet pressure loss: 5 mbar (2” H 2 O)
100 300
Fuel temperature: 5° C (41° F)
Exhaust temperature
90 250 Diagram conversion factors:
To convert To Multiply by
° C ° F (° Cx9/5)+32
80 200
-40 -30 -20 -10 0 10 20 30 40

Compressor inlet air temperature, ° C

Supplementary-fired heat-recovery steam generation

32
Conditions/assumptions:

30 Fuel: Natural Gas LHV, 46,798 kJ/kg (20,118 Btu/lb)

Saturated steam
Altitude: Sea level
Ambient pressure: 1,013 bar(a) (14.7 psi(a))
Steam flow, kg/s

200° C
28 Ambient temperature: 15° C (59° F)
250° C Relative humidity: 60 %
Boiler pinch point: 8 K (14 F)
26 300° C
Boiler approach point: 5 K (9 F)
350° C Inlet pressure loss: 5 mbar (2” H 2 O)
24 Outlet pressure loss: 25 mbar (10” H 2 O)

Diagram conversion factors:

22
0 10 20 30 40 50 60 70 80
To convert To Multiply by
° C ° F (° Cx9/5)+32
Steam pressure, bar (a) kg/s lb/s 2.2046
bar psi 14.5

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E-mail: support.energy@siemens.com
Siemens AG general descriptions of the technical options
Energy Sector Oil & Gas Division available, which may not apply in all cases.
Oil & Gas Division Order No. E50001-W430-A111-X-4A00 The required technical options should
Wolfgang-Reuter-Platz Printed in Germany therefore be specified in the contract.
47053 Duisburg, Germany Dispo 34806, c4bs No. 7447, P WS 06102.5

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