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Wet Compression for Two GE 7F.03 Gas Turbines

A power plant in the U.S. installed MeeFog wet compression systems on two GE 7F.03 gas turbines. The systems provide wet compression downstream of existing evaporative coolers, which results in a nearly instantaneous power boost of 10 MW per GT.

Wet compression consists of spraying water into the gas turbine compressor. When the water evaporates inside the compressor, the resulting inter-cooling effect reduces the work of compression, which causes an increase in power output.

Project Conditions:


  • Location: United States
  • Hot day conditions: 115° F with 65° F wet bulb
  • Elevation: 800 feet above sea level
  • Max power boost per GT: 10 MW
  • Mee’s scope of work: Supply of fog pump skids, nozzle manifolds, and supervision of installation and commissioning


Fog System Design:


  • Wet compression downstream of existing
    evaporative cooler
  • Fogging stages: 2
  • Operating pressure: 2,000 psi
  • Fog droplet size: 8 microns
  • Nozzle flow rate: 0.045 gpm per nozzle
  • MeeFog nozzle count: 780
  • Max power requirement: 60 HP


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