Siemens, V94.2, 2002, 220 MW Gas Based Power Plant, 50Hz, Combined Cycle

Description

  1. Overview
    1. Gas turbine unit: Siemens V94.2, 140 MW base load as per site, dual fuel firing (gas/naphtha/hsd)
    2. Equivalent operating hours since commissioning: 113,613.9
    3. Gross plant operating heat rate: 1900 to 1930 kcal/kwh at 100% to 90% plf
    4. Gross efficiency: 45% to 44%
  2. Gas Turbine Generator
    1. Brand: Ansaldo, model WY21Z-097LLT
    2. 200 MVA, 15 kV, 50 Hz
    3. Air cooled, static excitation
  3. Gtg Transformer
    1. Brand: Bhel
    2. 210 MVA, 235/15 kV
    3. Oil filled, ofaf
  4. Heat Recovery Steam Generator (Hrsg)
    1. Brand: Ansaldo
    2. Horizontal, natural circulation, all modules fully drainable
    3. Hp steam: 226 tph at 83.4 kg/cm², 528 °c
    4. Lp steam: 56 tph at 5.24 kg/cm², 205 °c
  5. Stack
    1. Main stack: 60 meters
    2. Bypass stack: 40 meters
    3. Installed with bypass stack dampers
  6. Steam Turbine
    1. Brand: Ansaldo, model HDS16010NDA31
    2. Rated MW: 80
    3. Single cylinder, dual pressure, condensing
    4. Steam pressure hp/lp: 83.78 kg/cm² / 5.24 kg/cm²
    5. Steam temperature hp/lp: 526 °c / 198.9 °c
  7. Steam Turbine Generator
    1. Brand: Ansaldo, model WY18Z-073LLT
    2. 105.5 MVA, 11.5 kV, 50 Hz
    3. Air cooled, static excitation
  8. Stg Transformer
    1. Brand: Bhel
    2. 110 MVA, 235/11.5 kV
    3. Oil filled
  9. Balance Of Plant
    1. Black start dg: 2 units, 500 kva each, engine model VTA 28-G, generator Stamford model HC54402
    2. Fuel gas system: max operating flow 1.46 mmscmd, with redundant filters and pressure regulators, orifice flow meter, pressure reduction 27/19 barg
    3. Cooling tower: 20,000 m³/h flow, 7 twin cells, induced draft counter flow, concrete structure, Paharur model 83462-4.0-108
    4. Circulating cooling water pumps: 3 units, vertical mixed flow, 8,872 m³/h each, model 36 VMF4
    5. Auxiliary cooling water pumps: 3 units, vertical mixed flow, 890 m³/h each, model 12 VMF
    6. Dm plant: 2 x 60 m³/h
    7. Plant fire fighting system: hydrant pumps (2 motor driven, 1 diesel engine driven, split casing horizontal), spray system (1 motor driven, 1 diesel engine driven, auto/remote and manual operation), deluge system, plant fire alarm system (addressable type)
  10. Control Systems
    1. Gt and st control system: ABB MESA, symphony enterprise management and control system, infi-net uni-direction high speed data network, 10 to 2 MHz, communication protocol iniit 12
    2. Hrsg and bop control system: Invensys, control processor CP60, model Fox View V99.201