SIEMENS GAS TURBINE SGT-500

Siemens Gas Turbine SGT-500
Power output: ISO 17 MW(e) / Mechanical Drive: 17.40 MWThe three shaft industrial gas turbine SGT-500 is a light weight, high efficiency, heavy duty machine. It operates reliably in the 15-20 MW power range and can handle a variety of fuels. For both, industrial power generation and mechanical drive, the SGT-500 is a proven unit. The SGT-500 is available as a factory assembled package and provides an excellent power-to-weight ratio. Moreover, the SGT-500 has successfully undergone a comprehensive test program on heavy fuel oil for marine applications.

Fields of Application:

> Drive solution for marine applications with heavy fuel oil (HFO) IF180
> Drive solution for centrifugal compressors used in the oil and gas industry
>Simple cycle power generation
>Combined cycle power generation
>Combined heat and power (CHP)
>Power generation for the oil and gas industry

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

DESIGN CONCEPT:-

SGT-500 for Power Generation and Mechanical Drive (up to 18.60 MW peak load)
The modular, compact design of the SGT-500 facilitates easy on-site service – complete modules can be swiftly exchanged. The SGT-500 contains a twin-shaft gas generator: The low pressure axis contains a 10 stage low pressure compressor and a 2 stage low pressure turbine. The high pressure axis contains an 8 stage high pressure compressor and a 1 stage high pressure turbine. The three-stage power turbine speed is 3,600 rpm for power generation and 3,450 rpm for mechanical drive. In order to increase efficiency, a blade tip clearance adjuster is connected between the power turbine stator and rotor. The gas turbine is available with a conventional or Dry Low Emissions (DLE) combustion system. Both systems provide dual fuel capability, the DLE system also providing extremely low NOx levels.

SGT-500 PACKAGE:-

The SGT-500 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-500 for Power Generation)

> Power output Base load: 17.18 MW(e) / Peak load: 18.60 MW(e)
> Fuel: Natural gas / liquid fuel / dual fuel and other fuels capability on request
> Frequency: 50/60Hz
> Electrical efficiency: 32.2%
> Heat rate: 11,180 kJ/kW-hr (10,597 Btu/kW-hr)
> Turbine speed: 3,600 rpm
> Compressor pressure ratio: 12:1
> Exhaust gas flow / temperature: 92.3 kg/s, 375°C (203.7 lb/s, 707°F)
> NOx emissions (with DLE, corrected to 15% O2 dry): ≤ 42 ppmV

SGT-500: Mechanical Drive
(Shaft output 17.40 MW)

> Fuel: Natural gas / liquid fuel / dual fuel and other fuels capability on request
> Frequency: 50/60Hz
> Efficiency: 32.8%
> Heat rate: 10,979 kJ/kW-hr (7, 760 Btu/kW-hr)
> Turbine speed: 3,450 rpm
> Compressor pressure ratio: 12:1
> Exhaust gas flow / temperature: 92.3 kg/s, 376°C (203.7 lb/s, 709°F)
> NOx emissions (with DLE, corrected to 15% O2 dry): ≤ 42 ppmV

BENEFITS:-
(SGT-500)

> SGT-500 can operate on heavy fuel oil (ideal for marine applications)
> Proven outstanding reliability and availability, onshore, offshore and FPSO
> Cyclic, peaking or continuous service
> Outstanding fuel flexibility, fuel changeover on load
> High efficiency, low degradation
> DLE systems for gas and liquid fuel
> State-of-the-art automation and control system
> Casings with blade containment capability and thermal insulation without requirement for forced ventilation
> Complete delivery from OEM - core engine and auxiliary equipment tested in workshop before delivery
> Long intervals between overhauls, low maintenance cost
> Site maintenance or gas generator replacement
> Combustor and hot section accessibility