SGT-400 Industrial Gas Turbine
Power Generation: (ISO) 12.90 MW(e)
The SGT-400 combines very high efficiency (nominal 35 %) with excellent emissions performance in a rugged industrial design. This makes it the ideal choice for a wide variety of power generation applications.
The Siemens twin-shaft industrial gas turbine SGT-400 features a compact gas generator and a two-stage power turbine, incorporating the latest aerodynamic and combustion technologies. The turbine has a simple-cycle efficiency of nominally 35 %.
For industrial cogeneration, the high steam-raising capability of more than 27 tonnes per hour contributes towards achieving overall plant efficiencies of 80 % or higher. In addition, the compact arrangement, on-site maintainability and inherent reliability of the SGT-400 have made it an ideal gas turbine for the demanding oil and gas industry.
Incorporating proven gas turbine technology, the SGT-400 offers costeffective power for a wide range of duties, including:
Industrial Power Generation
Simple-cycle and combined-cycle power plants for base load, standby power and peak lopping
Cogeneration for industrial plants with high heat load and district heating schemes
Power Generation in the Oil and Gas Industry
Offshore: on oil platforms and FPSO (Floating Production, Storage & Offloading) vessels
Onshore: for oil field service, refinery application, emergency and standby power generation,
Including highly efficient cogeneration solutions for oil and gas applications
Industrial Gas Turbines
Answers for energy.
SGT-400 Industrial
Gas Turbine
Technical specifications
Overview
•Twin-shaft, industrial
•Power generation: 12.90MW(e)
•Frequency: 50 or 60Hz
•Electrical efficiency: 34.8%
•Heat rate: 10,355kJ/kWh
(9,815 Btu/kWh)
•Compressor pressure ratio: 16.8:1
•Exhaust gas flow: 39.4kg/s (86.8lb/s)
•Exhaust temperature: 555°C (1,031°F)
•Typical emissions: NOx <15 ppmV and CO <10 ppmV (corrected to 15 % O2 dry)
•Medium-calorific value fuels capability (>25MJ/Nm3 Wobbe index)
Axial Compressor
•11-stage with variable inlet guide vanes
•Air flow: (ISO) 38.9kg/s
•Nominal speed: 14,100rpm
Combustion
•6 reverse-flow cannular combustion chambers
•Dry Low Emissions (DLE) system
•High-energy ignitor system
Turbine
•2-stage overhung compressor turbine
-Both stages are air-cooled
•2-stage high-efficiency power turbine
-Rotor blades have interlocking shrouds for mechanical integrity
Bearings
•Tilt-pad radial and thrust
•Standard vibrationand temperaturemonitoring
Main reduction gearbox
• Speeds of 1,500rpm and 1,800rpm
Generator
•Voltages: 6 to 13.8kV
•Frequency: 50 or 60Hz
Package
•Fabricated steel underbase
-Integral oil tank
-Multi-point mounting
-Optional 3-point mounting
•Modular fluid systems incorporating:
-Lubricating oil system
-Auxiliary gearbox-driven main pump
-AC motor-driven auxiliary pump
-DC motor-driven emergency pump
•Oil cooler and oil heater
•Electrically driven hydraulic start system
•Hydrocarbon drains tank on package
•Control system
-Siemens SIMATIC PLC-based with distributed control and processing capability installed on package
-Optional Allen-Bradley system
-Optional off-package systems
•Vibration monitoring system
-BN1701: Standard
-BN3500: Optional
•Fire and gas detection equipment
•Fire suppression equipment
•Onand off-line compressor cleaning options available
•Combustion-air inlet-filtration options:
-Simple static
-Pulse cleaning
-HEPA
•Enclosure
-Painted carbon steel or stainless steel
-Noise level options (85 dB(A) standard)
SGT-400 core engine test facility.
Gas turbine
Key features
High simple-cycle and cogeneration efficiencies, cutting fuel costs
Dual-fuel Dry Low Emissions (DLE) combustion system, meeting stringent legislation
Twin-shaft arrangement for both power generation and mechanical drive, allowing commonality of parts in mixed duty installations
Maintenance
Site maintainability or optional rapid core exchange as required by customer
Designed for maintenance:
-Horizontally split compressor casing
-Horizontally and vertically split inlet casing
-Combustion chambers, flame tubes and ignitors easily accessible for inspection
-Large side-doors on enclosure for equipment change-out
-Gas generator and power turbine removal on either side of package
Multiple boroscope-inspection ports
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