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Siemens, SGT-400, 2022, 12.9 MW, 50Hz, Natural Gas Turbine Genset

Siemens, SGT-400, 2022, 12.9 MW, 50Hz, Natural Gas Turbine Genset

Description

  1. Overview
    1. The Siemens SGT-400 is a high-performance, robust twin-shaft gas turbine, suitable for both power generation and mechanical drive applications.
    2. These gas turbines are brand new, manufactured in 2022, and have never been used before.
    3. This turbine is known for its operational and fuel flexibility, low emissions, and overall efficiency.
    4. It can burn a wide range of fuel compositions and run efficiently at all loads, including loads as low as 30%.
    5. The SGT-400 offers seamless, true dual-fuel capability.
  2. Unit Specifications
    1. Power output: 12.9 MW(e)
    2. Fuel: Natural gas
    3. Frequency: 50 Hz
    4. Gross efficiency: 35.00%
    5. Heat rate: 10,294 kJ/kWh (9,756 Btu/kWh)
    6. Turbine speed: 9,500 rpm
    7. Pressure ratio: 16.9:1
    8. Exhaust mass flow: 40.0 kg/s (88.2 lb/s)
    9. Exhaust temperature: 555 °C (1,031 °F)
    10. NOₓ emissions: ≤ 15 ppmvd (NOₓ emissions at 15% O₂ on fuel gas with DLE)
    11. Voltage: 230 V
  3. Key Features
    1. Extended service intervals of 32,000 hours for the hot gas path, with 64,000 hours before the first major overhaul. This unit has zero hours.
    2. Fuel flexibility allows the turbine to burn many fuel types and qualities, including liquid fuels and gases with high inerts. It can burn up to 10 vol% of hydrogen (H₂) when equipped with DLE burners and up to 65 vol% of hydrogen (H₂) when equipped with diffusion burners.
    3. Twin-shaft design enables efficient operation across a broader range of power – from 10 to 15 MW.
    4. The turbine has intelligent automatic adjustment of fuel split during starting and during operation to compensate for load, ambient, and fuel composition changes, thereby minimizing emissions.
  4. Applications
    1. Ideal for onshore or offshore oil and gas industry applications due to its compact dimensions, on-site or off-site maintainability, and high reliability. It can be used as a direct drive for compressors or pumps, or for power generation. Suitable for onshore use in oil fields or refinery applications and offshore on platforms and FPSO vessels.
    2. It is also ideal for industrial power generation in simple cycle or combined cycle applications and combined heat and power (CHP) uses.
  5. Design Details
    1. The SGT-400 features a two-bearing gas generator rotor with an 11-stage axial flow transonic compressor and a two-stage, overhung compressor turbine. The SGT-400 free power turbine also has a robust two-stage, overhung design.
    2. The rotors are contained in heavy-duty casings that are horizontally and vertically split, so maintenance can be carried out on-site as needed.
    3. The compressor uses variable guide vanes for robust operability and optimized performance across a range of operating conditions.
    4. The gas turbine is equipped with a DLE combustion system to achieve low NOₓ emissions with both gaseous and liquid fuels.
  6. Packaging
    1. The SGT-400 gas turbine packages for both power generation and mechanical drive applications are compact and designed to be easily transported, installed, and maintained. They are equipped with factory-tested modules and offer a high power-to-weight ratio.
    2. These packages consist of the gas turbine, gearbox (if necessary), driven unit, and all factory-tested fluid modules, mounted on an underbase.
    3. The fluid system modules, which are shop-tested and certified, are common for all SGT-400 gas turbine packages and come fully wired into the control systems. These modules include an auto drains module, a gas fuel module, a lube oil module, and an optional liquid fuel module.
  7. Power Generation Package
    1. The SGT-400 package for power generation is suited for simple cycle, combined cycle, and cogeneration. Its high steam-raising capability, compact arrangement, robustness, and reliability, and ease of maintenance make it an ideal choice for many applications.
  8. Mechanical Drive Package
    1. The mechanical drive package is very compact, providing a small footprint and a high power-to-weight ratio.
  9. Gas Turbine Package
    1. Assembled in 2022.
    2. Features an SGT-400 gas turbine core engine.
    3. Never installed or utilized.
    4. The engine(s) underwent retesting in 2022 to verify operational performance and efficiency.
  10. Ac Generator
    1. Assembled in 2022.
    2. Package and core engine serial numbers are confirmed upon order placement.
    3. Availability of supporting documentation for review, with prior notification needed.
  11. Scope of Supply
    1. Includes a driven unit.
    2. Features an AC generator.
    3. Operates at 11 kV.
    4. Runs on 3-phase power, 50 Hz.
    5. Utilizes a 4-pole system.
    6. Maintains a power factor of 0.8.
    7. Comes with a cylindrical pole brushless type filter ventilated.
    8. Employs class 'F' insulation with class 'F' total temperature rise.
    9. Generator bearing temperature instrumentation.
    10. Features lubricating oil piping extending from the gas turbine to the driven unit.
  12. Gas Turbine Engine
    1. SGT-400 gas turbine engine has an ISO rating of 12.9 MWe.
    2. Engine employs a twin shaft design gas generator.
    3. Contains an air inlet casing and a compressor rotor.
    4. Features a compressor stator with variable guide vanes (VGV) and a center casing.
    5. Employs a dry low emissions (DLE) combustion system for dual fuels.
    6. Includes a compressor turbine rotor and stator, a power turbine, hot gas interduct, power turbine rotor, power turbine stator, and an output shaft drive exhaust outlet casing.
    7. Engine is arranged for hot end drive.
    8. Engine includes bearing temperature and vibration instrumentation.
  13. Underbase
    1. The underbase features a fabricated carbon steel construction, arranged for multi-point mounting.
    2. Contains mounting assemblies for the gas turbine core, auxiliary gearbox, auxiliaries, and main gearbox.
    3. Features a separate underbase for the driven unit.
    4. Comes with an integral lubricating oil tank made of carbon steel.
    5. Contains 2 identical SGT400 generator packages.
    6. Includes both twin shaft turbines.
    7. Ready for shipment in September/October 2022, depending on site-specific requirements.
    8. Includes both gas and liquid fuel systems.
    9. Employs a DLE combustion system.
  14. Start System
    1. Features a hydraulic motor and pump driven by an AC electric motor.
  15. Gears, Couplings, and Guards
    1. Includes a main speed reducing gearbox of the epicyclic type, output shaft speed 1500 rpm.
    2. Comes with gearbox seismic vibration instrumentation.
    3. Includes an auxiliary gearbox incorporating drives for start system and lubricating oil pump.
    4. Features a high-speed drive coupling - flexible element dry type - turbine to gearbox.
  16. Specifications
    1. Stock number: USP010096