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) |