SIEMENS GAS TURBINE SGT-600

Siemens Gas Turbine SGT-600
Power output: ISO 24.77 MW(e) / Mechanical Drive: 25.40 MW Wherever operating environments are particularly tough, the heavy duty gas turbine SGT-600 is the turbine of choice. The compact turbine is rated in the 25 MW class, with 34.2 % open-cycle efficiency. Designed as a compact, twin-shaft unit, the SGT-600 is suitable for electrical and mechanical drive applications. The unit offers long life, easy on-site maintenance and a wide fuel range capability - from liquid fuel to natural gas. Its compactness makes it suitable for offshore installations as well as for retrofitting in existing installations.

FIELD of APPLICATION:-

> Drive solution for compressors
> Simple cycle power generation
> Combined cycle power generation
> Ideal for combined heat and power (CHP), because of its excellent exhaust heat data
> Power generation for the oil and gas industry

--> Onshore power generator for oil field service, refinery applications etc.
--> Offshore platforms and FPSO vessels

DESIGN CONCEPT:-
SGT-600 for Power Generation and Mechanical Drive: up to 25.40 MW
The SGT-600 is a twin shaft machine with ten compressor stages. The first two stages have variable guide vanes. To avoid surging in the compressor during start and at low load, the unit is equipped with two bleed valves. The combustion chamber is of annular type and includes 18 burners. The inner surface of the combustor has a thermal barrier coating, that reduces the level of heat transfer and extends the lifetime. The SGT-600 is available with a conventional or Dry Low Emissions (DLE) combustion system. Both systems provide dual fuel capability, the DLE system also achieves low NOx levels.

POWER GENERATION PACKAGE:-
The SGT-600 is available as a factory assembled package. It is easily transported, installed and maintained at site. The package incorporates the gas turbine, gearbox, generator (for PG applications) and all systems mounted on a single underbase. Turbine controls, generator control panel, motor control center for package motors and variable speed drive for starter motor are normally also package-mounted.

TECHNICAL DATA:-
(SGT-600 for Power Generation)


> Power output: 24.77 MW(e)
> Fuel: Natural gas / liquid fuel / dual fuel and other fuels capability on request
> Frequency: 50/60 Hz
> Electrical efficiency: 34.2 %
> Heat rate: 10,533 kJ/kW-hr (9,983 Btu/kW-hr)
> Turbine speed: 7,700 rpm
> Compressor pressure ratio: 14.0:1
> Exhaust gas flow / temperature: 80.4 kg/s, 543 °C (177.3 lb/s, 1,009 °F)
> NOx emissions (with DLE, corrected to 15 % O2 dry): ≤ 25 ppmV

SGT-600: MECHANICAL DRIVE:-

> Shaft output: 25.40 MW
> Fuel: Natural gas / liquid fuel / dual fuel and other fuels capability on request
> Shaft efficiency: 35.1%
> Heat rate: 10,256 kJ/kW-hr (7, 249 Btu/kW-hr)
> Turbine speed: 7,700 rpm
> Compressor pressure ratio: 14:1
> Exhaust gas flow / temperature: 80.4 kg/s, 543 °C (177.3 lb/s, 1,009 °F)
> NOx emissions (with DLE, corrected to 15 % O2 dry): ≤ 25 ppmV

BENEFITS:-
(SGT-600)
> Emission control by well proven, Dry Low Emission System (DLE)
> High efficiency and low deterioration
> Common design for Power Generation & Mechanical Drive applications
> Many applications/installations (Simple Cycle, Combined Heat and Power, Combined
Cycle Power Plant, Peaking, Offshore)
> In situ maintenance or gas generator removal to workshop
> Casings with blade containment capability and thermal insulation without requirement for forced ventilation
> Fuel changeover capability (gas to liquid and liquid to gas) on load
> Load rejection capability
> Complete delivery from Original Equipment Manufacturer - core engine and auxiliary equipment tested in workshop before delivery