Siemens SGT-300 Gas Turbine

Power Generation: (ISO) 7.9 MW(e) / Mechanical Drive: 8.4 MW or 9.2 MW

The proven, robust Siemens SGT-300 gas turbine has performed successfully over many years in power generation and combined heat and power applications. As a single-shaft turbine for power generation, the Siemens SGT-300 has an electrical power output of 7.9 MW. The 8.4 MW or the 9.2 MW twin-shaft version is used as a mechanical drive. The Siemens SGT-300 is available as a factory-assembled package and is designed to operate with a wide range of gaseous and liquid fuels. Its compact arrangement, on-site maintainability and inherent reliability make it suitable, among other applications, for power generation in the oil and gas industry, including emergency generation.

Overview of benefits

High Availability

  • Proven, reliable design
  • Designed for ease of maintenance
  • Rapid core engine exchange (minimizes downtime)

Environmentally friendly

  • High efficiency reduces fuel burn
  • Dual-fuel Dry Low Emissions (DLE) combustion system for compliance with stringent environmental legislation
  • High fuel flexibility, can be operated with different fuels

An optimized solution

  • Easy to transport
  • Simple and quick to install
  • 24 / 7 service back-up

Applications

Industrial power generation

For industrial power generation, a single-shaft version of gas turbine Siemens SGT-300 is used. The single-shaft Siemens SGT-300 consists of a single twin-bearing rotor with heavy-duty casing. Since the turbine has a compact footprint, is highly reliable and has full site maintainability, it is frequently used for power generation in the oil and gas industry. Quick core engine exchange is possible which significantly cuts maintenance-related downtimes. The gas turbine is equipped with a Dry Low Emissions (DLE) combustion system, providing low NOx emission levels with liquid and gaseous fuels. The Siemens SGT-300 also has dual-fuel capability. The following applications are possible:

  • Simple cycle applications
  • Combined cycle applications
  • Combined heat and power (CHP)
  • Power generation for the oil and gas industry (onshore for use in oil fields or refinery applications and offshore on platforms and FPSO vessels)
  • Emergency generation and standby operation

Mechanical drive

For mechanical drive applications, e.g. for compressors and pumps, a twin-shaft version of the Siemens SGT-300 is used. Proven materials and technologies are used in the two-stage gas generator turbine and the two-stage power turbine, guaranteeing high reliability with powerful performance and constantly low emissions and  fuel consumption. Its modular design approach allows turbine module exchanges to be carried out in-situ as an alternative to a gas generator or power turbine service exchange. The Siemens SGT-300 can operate over a wide load and speed range with a wide range of gaseous and liquid fuels, for example as:

  • Drive solution for pumping applications, for example transporting of crude oil and refinery products, or as pump drive for water injection in oil production
  • Drive solution for compressors in gas injection, for increasing pressure in various pipeline applications or in gas processing and similar applications.

Technical Data

Siemens SGT-300 Performance data for simple cycle power generation
Power output 7.9 MW(e)
Fuel Natural gas; liquid fuel; dual fuel; other fuels on request; automatic changeover from primary to secondary fuel at any load
Frequency 50 / 60 Hz
Gross efficiency 30.6%
Heat rate 11,773 kJ / kWh
Turbine speed 14,010 rpm
Pressure ratio 13.7 : 1
Exhaust mass flow 30.2 kg / s
Exhaust temperature 542 °C (1,008 °F)
NOx emissions ≤ 15 vppm at 15% O2 on fuel gas (with DLE)
Siemens SGT-300 Performance data for mechanical drive applications
8 MW Version 9 MW Version
Power output 8.4 MW 9.2 MW
Fuel Natural gas; liquid fuel; dual fuel; other fuels on request; automatic changeover from primary to secondary fuel at any load
Efficiency 35.1% 35.6%
Heat rate 10,265 kJ / kWh 10,104 kJ / kWh
Turbine speed 11,500 – 12,075 rpm 11,500 rpm
Pressure ratio 13.8 : 1 14.5 : 1
Exhaust mass flow 29.7 kg / s 30.5 kg / s
Exhaust temperature 491 °C (916 °F) 512 °C (954 °F)
NOx emissions ≤ 15 vppm at 15% O2 on fuel gas (with DLE)

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