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Nuovo Pignone, PGT10B-1, 2001, Cogenerative Power Plant, 2x 11700 kW, 50Hz

Description

  1. Gas Turbine
    1. Based on Nuovo Pignone PGT10B-1 generators.
    2. Year of production: 2001 (both units).
    3. Power: 11,700 kW (each).
    4. Compressor: 11 stages, axial flow (each).
    5. Compression ratio: 15.5:1 (each).
    6. Gas discharge flow: 47 kg/s (each).
    7. Fuel: natural gas (each).
    8. Turbine: 3 stages of reaction, axial flow (each).
    9. Rotation speed: 11,000 rpm (each).
    10. Thermal efficiency: 32.5% (each).
    11. Air pressure suction: 1.013 bara (each).
    12. Air temperature suction: 15 °C (each).
    13. Air pressure discharge: 1.0134 bara (each).
    14. Burner: dry low emissions (each).
    15. Start system: electric (each).
    16. Control systems: Suvimac II+ (each).
  2. Gas Turbine Generators
    1. Year of construction: 2000 (both units).
    2. Type: GSCR900Z4, synchronous 3 phase (each).
    3. Number of poles: 4 (each).
    4. Power: 13,569 kVA (each).
    5. Rotation velocity: 1,500 g/min (each).
    6. Rotation overspeed: 1,800 g/min (each).
    7. Frequency: 50 +3/-5% Hz (each).
    8. Excitation voltage: 79.9 V (each).
    9. Generator voltage: 11,000 V ±5% (each).
    10. Excitation current: 4.9 A (each).
    11. Generator current: 712 A (each).
    12. Power factor: 0.8 (each).
    13. Excitation type: brushless with PMG (each).
    14. Connection phases: star with accessible neutral (each).
    15. Nominal voltage: 11 kV ±5% (each).
    16. Nominal current: 712 A (each).
  3. Boilers
    1. Brand: Macchi.
    2. Year of construction: 2001 (both units).
    3. Steam production M.C.R.: 71,240 kg/h (each).
    4. SH outlet temperature: 513 ±5 °C (each).
    5. Steam flow: 43,000–71,240 kg/h (each).
    6. Boiler drum: Pmax = 130 bar, Tmax = 332 °C (each).
    7. SH: Pmax = 130 bar, Tmax = 518 °C (each).
    8. Economizer: Pmax = 165 bar, Tmax = 351 °C (each).
    9. Heated surface: 6,918 m² (each).
    10. Nominal boiler flow: 65.7 t/h (each).
    11. Power rate: 55,330 kW (each).
    12. Auxiliary electric consumption COP: 75 kW (each).
    13. Auxiliary electric consumption COV: 250 kW (each).
    14. Net thermal efficiency COP: 90.32% (each).
    15. Net thermal efficiency COV: 92.48% (each).
    16. Boiler drum metal skin gradient: 4.5 °C/min (each).
    17. Boiler drum hold-up: low low level 2 min, high high level 1 min (each).
  4. Steam Turbine
    1. Brand: Nuovo Pignone.
    2. Year of construction: 2000.
    3. Model: HNK 50/3.2 M2.
    4. Max power: 44,500 kW.
    5. Max speed: 3,000 rpm.
    6. Nominal speed: 3,000 rpm.
    7. Overspeed: 3,300 rpm.
    8. 1st critical speed: 1,950 rpm.
    9. 2nd critical speed: 6,500 rpm.
    10. Max pressure at the steam inlet: 110 bara.
    11. Max temperature at the steam inlet: 510 °C.
    12. Max pressure 1st bleeding: 23 bara.
    13. Max pressure 2nd bleeding: 3.6 bara.
    14. Max pressure 3rd bleeding: 1.0 bara.
    15. Max discharge pressure: 0.08 bara.
  5. Steam Turbine Generator
    1. Year of construction: 2001.
    2. Model: JISALT 255.
    3. Number of poles: 2.
    4. Power: 51,500 kVA.
    5. Nominal speed: 3,000 rpm.
    6. Rotation overspeed: 3,600 rpm.
    7. Frequency: 50 Hz ±2%.
    8. Excitation voltage: 289 V.
    9. Generator voltage: 246 V.
    10. Excitation current: 699 A.
    11. Generator current: 571 A.
    12. Power factor: 0.8.