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Gas Turbine SGT-400
Power Generation: ISO 12.90 MW(e) / 14.40 MW(e); Mechanical Drive: 13.40 MW / 15.00 MW
Description:
The SGT-400 industrial gas turbine is a blend of 25 years experience and the latest combustion technologies. It offers a power output of 12.90 MW(e) / 14.40 MW(e) for Power Generation and 13.40 MW / 15.00 MW(e) for mechanical drive configuration. The gas turbine is equipped with a Dry Low Emissions (DLE) combustion system, achieving low NOX levels with gas and liquid fuels and a full dual-fuel capability.
In power generation the SGT-400 gas turbine benefits from the turbine’s high simple cycle efficiency (nominal: 34.8 %). In cogeneration applications the unit’s consistent, cost-effective power and steam-raising capability contribute to outstandingly high plant efficiencies. As a highly efficient unit the SGT-400 used in the following fields of application:
· Simple cycle applications
· Combined cycle applications
· Combined heat and power (CHP)
· Power generation for the oil and gas industry
· Onshore power generator for oil field service, refineries etc.
· Offshore platforms and FPSO vessels
For mechanical drive applications the SGT-400 gas turbine is a proven unit for driving compressors and pumps, primarily for the oil and gas industry. It offers outstanding reliability, efficiency and maintainability and is designed to operate on a wide range of gaseous and liquid fuels. Designed for applications where speeds and loads vary, the SGT-400 can operate over a range of different demands:
· Drive solution for pumping applications including crude oil, other refinery product transmission and water injection
· Drive solution for centrifugal compressors used in gas injection, pipeline transmission and boosting, gas processing and similar applications
· Mixed duty applications
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Power output |
12.90 MW(e) |
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14.40 MW(e) |
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Fuel |
Natural gas / liquid fuel / dual fuel and other fuels capability on request |
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Frequency |
50/60 Hz |
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Electrical efficiency |
34.8% |
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35.2% |
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Heat rate |
10,355 kJ/kWh (9,815 Btu/kWh) |
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10,084 kJ/kWh (9,700 Btu/kWh) |
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Turbine speed |
9,500 rpm |
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Compressor pressure ratio |
16.8:1 |
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18.9:1 |
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Exhaust gas flow / Temperature |
39.4 kg/s, 555°C (86.8 lb/s, 1,031°F) |
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44.3 kg/s, 546°C (97.7 lb/s, 1,009°F) |
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NOx Emissions (with DLE, corrected to 15% O2 dry) |
‘≤ 15 ppmV |
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Shaft output |
13.40 MW (18,000bhp) |
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15.00 MW (20,100bhp) |
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Fuel |
Natural gas / liquid fuel / dual fuel and other fuels capability on request |
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Efficiency |
36.2% |
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36.6% |
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Heat rate |
9,943 kJ/kWh (7,028 Btu/bhph) |
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9,684 kJ/kWh (6,845 Btu/bhph) |
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Turbine speed |
9,500 rpm |
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Compressor pressure ratio |
16.8:1 |
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18.9:1 |
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Exhaust gas flow / Temperature |
39.4 kg/s, 555°C (86.8 lb/s, 1,031°F) |
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44.3 kg/s, 546°C (97.7 lb/s, 1,009°F) |
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NOx Emissions (with DLE, corrected to 15% O2 dry) |
‘≤ 15 ppmV |
Benefits
· Proven design resulting in high availability and security of supply
· Dual-fuel Dry Low Emissions (DLE) combustion system, meeting the most stringent legislation
· Twin-shaft arrangement for both power generation and mechanical drive, allowing commonality of parts in mixed duty installations
· Competitive cost-to-power ratio
· Compact size
· Site maintainability
· Alternate rapid core engine exchange option, minimizes downtime
The twin-shaft configuration of the SGT-400 provides excellent speed and load turndown flexibility. The design is uniquely simple, employing a single gas generator rotor with twin bearings and a single-stage overhung turbine. The free power turbine is a two-stage overhung design. Rotors are contained in heavy duty casings which are horizontally and vertically split, allowing full site maintenance. The gas turbine is equipped with a Dry Low Emissions (DLE) combustion system, achieving low NOX levels with gas and liquid fuels and a full dual-fuel capability.
With a power turbine speed of 4,800 to 10,000 rpm, generator or pump drive from the power turbine is usually via a speed-reducing gearbox. Most compressor drive applications can be met without the need for a speed-changing gear.
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