Alstom, SGT100, 2000, 5.2 MW, 50 Hz, 11000V

Description

  1. Overview
    1. Power rating: 5.25 MW(E)
    2. Pressure ratio: 14.9:1
    3. Efficiency: 31%
    4. Heat input (gas): 17158 kW
    5. Heat input (liquid): 16537 kW
    6. Nominal speed: 17,384 rpm
    7. Air flow (inlet): 20.5 kg/s
    8. Exhaust gas flow: 20.1 kg/s
    9. Exhaust gas temperature: 540 °C
    10. Compressor: 10 stage axial flow
    11. Turbine: 2 stage overhung
    12. Combustion: 6 reverse flow tubular combustion chambers
    13. Configuration: Standard combustion – NOx < 240 ppmv (gas)
    14. Configuration: Dry low emissions (DLE) – NOx level < 25 ppmv (gas)*
    15. Configuration: Standard combustion – NOx < 430 ppmv (liquid)
    16. Configuration: Dry low emissions (DLE) – NOx level < 25 ppmv (liquid)*
    17. Ignition system: Retractable high energy cross lighting
    18. Ignition system (DLE type): Individual chamber ignition*
    19. Air flow modulation: Variable inlet guide stator blade actuation
    20. Steam raising capacity: 11.5 t/hr at LL barg**
  2. Datum Conditions
    1. Inlet air temperature: 15 °C
    2. Ambient pressure: 1013 mbar
    3. Relative humidity: 60%
    4. Assumed intake losses: 75 mm H20**
    5. Assumed exhaust losses: 250 mm H20**
    6. Power turbine speed: 100%
    7. Gearbox efficiency: 99%
    8. Generator efficiency: 97%
  3. Generator Details
    1. Type: Synchronous AC generator, salient-pole with brushless excitation
    2. Poles: 4
    3. Speed: 1500 rpm / 50 Hz
    4. Output: 6750 kVA / 3 phase
    5. Voltage: 11,000 V
    6. Amps: 354 A
    7. Power factor: 0.8
    8. Insulation class: F
    9. Rating (SL cont) class: F
    10. IP: 01
    11. IC: 27
    12. Manufacturer and date: Alstom 2000
    13. Ventilation: Dedicated direct air flow cooling
  4. Lubricating Oil System Details
    1. Type: Integral system serving the turbine, gearbox and generator
    2. Operating oil pressure: 2.06 barg
    3. Reservoir capacity: 1566 L (approx.)
    4. Oil type: Shell Turbo T46 (or equivalent)
    5. Main gearbox pump: Gearbox driven
    6. Main gearbox pump flow: 491 L/min
    7. Main gearbox pump power rated: 11.6 kW at 6.9 barg and 3000 rpm
    8. Auxiliary pump: AC motor driven
    9. Auxiliary pump flow: 232 L/min
    10. Auxiliary pump power rated: 7.1 kW at 6.9 barg and 3000 rpm
    11. Emergency pump: DC motor driven (hot rail supply)
    12. Emergency pump flow: 13.6 L/min
    13. Emergency pump power rated: 0.37 kW at 2.06 barg and 3000 rpm
    14. VIGS pump: Gearbox driven
    15. VIGS pump flow: 6.4 L/min
    16. VIGS pump power rated: 75.9 barg at 3000 rpm
    17. Oil tank heating: 3 x 1.25 kW heating elements
    18. Temperature control valve: Controls oil temperature from 40 to 50 °C (opening to full open)
    19. Main oil filter module: 10 micron duplex with integral differential pressure transmitter
    20. Emergency oil filter: 25 micron with integral differential pressure indicator
    21. Pressure control valve: Maintains 2.06 barg at bearings supply pipework
    22. Oil cooler: Roof mounted air blast cooler with 4.7 kW motor fan
    23. Instrumentation: High/low level sensing and alarm function, pressure monitoring and alarm function, temperature monitoring and alarm function
    24. Tank ventilation: Roof mounted oil mist coalescer
  5. Gearbox Details
    1. Type: Epicyclic star
    2. Size: ASG34
    3. Gear ratio: 11.61:1
    4. Rated power: 8400 hp
    5. Input speed: 17,417 rpm
    6. Output speed: 1500 rpm
    7. Service factor: AGMA421.06 SF1.3
    8. Manufacturer and date: Allen Gears 2000
  6. Fuel System Details
    1. Type: Tri-fuel embedded control system and burners; off-skid conditioning and forwarding systems optional; customer fuel type requirements optional
    2. Gas fuel: Wobbe 37-49 MJ/m3
    3. Naphtha: Wobbe 44-47 MJ/kg
    4. Distillate: Wobbe ~45 MJ/kg
  7. Gas Fuel System Details
    1. Supply pressure (skid edge): Max 25 barg, min 19.5 barg
    2. Supply temperature: Max 100 °C, min fuel dew point dependent
    3. Safety device: On-skid block and vent valve
    4. Fuel control valve: Star valve
    5. Instrumentation: Position feedback sensors, pressure monitoring and alarm, temperature monitoring and alarm
  8. Naphtha Fuel System Details
    1. Supply pressure (skid edge): Max 50 barg
    2. Supply temperature: Max 60 °C, min 2 °C
    3. Safety device: On-skid block and drain valve
    4. Fuel control valve: Direct drive valve
    5. Instrumentation: Position feedback sensors, pressure monitoring and alarm, temperature monitoring and alarm
  9. Distillate Fuel System Details
    1. Supply pressure (skid edge): Max 50 barg
    2. Supply temperature: Max 60 °C, min 0 °C
    3. Safety device: On-skid block and drain valve
    4. Fuel control valve: Direct drive valve
    5. Instrumentation: Position feedback sensors, pressure monitoring and alarm, temperature monitoring and alarm
  10. Instrument Air System Details
    1. Supply pressure (skid edge): Max 6.9 barg, min 5.5 barg
    2. Supply quality: ISO 8573-1 quality class 3.3.3
  11. Starting System
    1. Starting system details not provided in the input.