Heavy-Duty Gas Turbine M501DA

In 1984, a 1,090 MW heat recovery combined cycle power plant, which was powered by six 701D gas turbines, began commercial operation. This is the dawn of the current era of combined cycle power generation. The DA series incorporates the F-class technology into the D Series to improve overall performance.

  • A compressor shaft end drive reduces the effect of thermal expansion on alignment

  • A rotor with simple single-shaft two-bearing support

  • An axial flow exhaust structure advantageous in combined cycle plant layouts

  • Horizontally split casings that facilitate field removal of the blades with the rotor in place

  • A rotor structure has bolt-connected discs with the torque pins in the compressor section and CURVIC couplings in the turbine section to ensure stable torque transmission

M501DA Specifications:

  • Power (MW)
    113.95
  • Fuel
    Natural Gas
  • Frequency (Hz)
    60
  • Ramp-up (MW/min)
    7
  • Efficiency (%)
    34.9
  • Heat-rate (kJ/kWh)
    10320
  • Speed (RPM)
    3600
  • Exhaust mass flow (kg/s)
    354
  • Exhaust Temperature (C)
    543
Mitsubishi Hitachi Power Systems
Manufacture

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