Siemens SGT-100 Gas Turbine

Power Generation 5.1 or 5.4 MW(e) / Mechanical Drive 5.7 MW

The Siemens SGT-100 gas turbine is an industrial gas turbine in the power output range from 5 to 6 megawatts (MW) which combines compact and rugged construction with advanced technology. For industrial power generation a single-shaft version of the Siemens SGT-100 is used which has a power output of 5.05 MW(e) or 5.1 MW(e). It is ideally suited for combined heat and power (CHP) plants. For mechanical drive, a twin-shaft configuration of the Siemens SGT-100 is used. This delivers a power at coupling of 5.7 MW and is frequently deployed in the oil and gas industry, for example as a drive solution for pumps and compressors.

Overview of benefits

  • High availability and operating reliability
  • Competitive cost-to-power ratio
  • Outstanding load acceptance and shedding characteristics
  • Dry Low Emissions (DLE) combustion system for liquid and gaseous fuels for reducing NOx emissions
  • On-site maintenance possible
  • Rapid core engine exchange option (minimizes downtime)
  • Proven in applications in combined heat and power (CHP) plants

Applications

Industrial power generation

For industrial power generation, a single-shaft version of the Siemens SGT-100 with a single twin bearing rotor with heavy duty casings is employed. The turbine design allows full on-site maintenance to be carried out. The Siemens SGT-100 is suitable for the following applications in power generation:

  • Gas turbine power plants (simple cycle applications)
  • Combined cycle power plants (combined cycle applications)
  • Combined heat and power (CHP)
  • Power generation for the oil and gas industry, on offshore platforms and FPSO vessels (Floating Production, Storage and Offloading)

Mechanical drive

The twin-shaft version of the Siemens SGT-100 gas turbine has proven itself over decades as a mechanical drive. The overall design of the gas turbine is uniquely simple. The Siemens SGT-100 employs a single twin bearing gas generator rotor and a single-stage overhung turbine. The free power turbine is a two-stage design. The rotors are contained in heavy-duty casings which are horizontally and vertically split, allowing full site maintenance to be carried out. Since the turbine is compact and highly reliable and can be maintained on-site at the point of application it is frequently used in the oil and gas industry. The Siemens SGT-100 is suitable for a wide load and speed range, for example as:

  • Drive solution for pumps, for example for water injection in oil production, in crude oil processing and for the transport of refinery products via pipelines
  • Drive solution for compressors for gas injection, for increasing pressure in pipelines and in natural gas processing

Dry Low Emissions (DLE) combustion system

Both versions of the Siemens SGT-100 gas turbine are available with Dry Low Emissions (DLE) combustion system, providing extremely low NOx emission levels with both gas and liquid fuels. The turbine also has dual-fuel capability.

Technical Data

Siemens SGT-100 Performance data for simple cycle power generation
5.1 MW Version 5.4 MW Version
Power output 5.1 MW(e) 5.4 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 50 / 60 Hz
Gross efficiency 30.2% 31.0%
Heat rate 11,914 kJ / kWh 11,613 kJ / kWh
Turbine speed 17,384 rpm 17,384 rpm
Pressure ratio 14.0 : 1 15.6 : 1
Exhaust mass flow 19.5 kg / s 20.6 kg / s
Exhaust temperature 545 °C (1,013 °F) 531 °C (988 °F)
NOx emissions ≤ 25 vppm at 15% O2 on fuel gas (with DLE)
Siemens SGT-100 Performance data for mechanical drive applications
Power output 5.7 MW
Fuel Natural gas; liquid fuel; dual fuel; other fuels on request; automatic changeover from primary to secondary fuel at any load
Efficiency 32.9%
Heat rate 10,948 kJ / kWh
Turbine speed 13,000 rpm
Pressure ratio 14.9 : 1
Exhaust mass flow 19.7 kg / s
Exhaust temperature 543 °C (1,009 °F)
NOx emissions ≤ 25 vppm at 15% O2 on fuel gas (with DLE)

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