Siemens, SGT 300 Tempest, 2006, 9.5MW Combined Cycle Cogeneration Plant

Description

  1. Overview
    1. Excellent combined cycle cogeneration plant (gas turbine + steam turbine + recuperation boiler) completely retrofitted in 2006 and working until 2008.
    2. Includes Siemens gas turbine, year 2006.
  2. Plant Features
    1. Gross electric production: 69,500 mwh/year.
    2. Net electric production: 66,000 mwh/year.
    3. Working hours: 8,300 h/year.
    4. Steam production, 2007: 160,000 t steam/year.
    5. Gas consumption: 250,000 mwh/year.
    6. Equivalent electric output (ree %): 67.5.
    7. Total thermal output (%): 80.
  3. Main Equipment
    1. Gas Turbine (2006)
      1. Siemens SGT 300 Tempest with Alstom synchronizing alternator at 6 kv.
      2. Electric power: 7.9 mw iso.
      3. Gas flow: 29 kg/s at 575 °c, equivalent to 14 t steam/h, recoverable.
    2. Post-Combustion Burner (2006)
      1. Eclipse.
      2. Thermal power: 7.1 mw.
      3. Regulation: 1:10.
    3. Recuperation Boiler (Retrofitted in 2006)
      1. Manufacturer: Balcke Dürr (recuperation boiler) and Gea (economizer).
      2. Type: water-tubular.
      3. Max. steam production: 25 t/h at 40 bars.
      4. From the previous max. production, 18 t steam/h can be produced overheating at 410 °c to feed the combined cycle steam turbine and produce up to 1400 kwe additional.
    4. Gas Compressor (Retrofitted in 2006 by Gardner and Denver)
      1. Manufacturer: Bellis and Morcom, at present named Gardner and Denver.
      2. Type: alternative oil-free pistons.
      3. Electric engine: 100 kw.
      4. Max. output pressure: 21 bar (rel.).
    5. Steam Turbine (Retrofitted in 2003)
      1. Manufacturer: Künhle, Koop und Kausch (KKK).
      2. Type: CFR-3.
      3. Electric power: 1400 kw.
      4. Inlet steam pressure: 40 bar (r).
      5. Output steam pressure: 5 bar (r).
      6. Inlet steam flow: 18 t v/h.
      7. St alternator: synchronous, manufacturer Indar, 1575 kva at 6 kv.
    6. Reverse Osmosis Water Treatment (2002)
      1. Manufacturer: Deisa.
      2. Installation capacity: 6.5 m3/h.
      3. Parallel connection with the existing demineralization.
      4. Final quality of the water entering the boiler (osmosis + demineralization): less than 1 microsiemens/cm.
  4. Plant Distribution and Elevation Drawings
    1. In the following drawings it can be seen the equipment distribution in plant and an elevation of the main equipments.
    2. The new equipments installed during the modernization plant executed in 2006 are marked in red.