Gas Turbine Inlet Air Fogging on Two SW 501FD2 GTs

Close-up of a metallic rack system featuring evenly spaced horizontal bars with connectors, set against a muted background.

A Southwestern US Power Station installed MeeFog Systems on two SW 501FD2 gas turbines. Each system provides wet compression (2% of air mass flow) and produces a 22 MW power boost. The GT controls were modified so when wet compression is in operation the GT switches to a “wet-control curve.” This ensures a constant firing temperature is maintained, so the maximum wet compression power boost is obtained, and CO emissions stay within permitted limits.

Project Conditions:

Elevation: 2842 feet above sea level
Model: SW 501FD2 Gas Turbine
Max Power Boost: 22 MW
Mee’s Scope of Work: supply of fog pump skid, nozzle manifolds, and supervision of installation and
commissioning.

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Fog Skid Design:

Fogging Stages: 16
Operating Pressure: 2,000 psi
Fog Droplet Size: 8 microns SMD
MeeFog™ Nozzle Count: 3,072
Nozzle Flow Rate: 0.045 gpm per nozzle
Max. Water Flow: 138 gpm
Max. Power Requirement: 240 HP

Learn More About Meefog Systems

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Thomas Mee III

Thomas brings over 40 years of expertise in gas turbine inlet air fogging, having led the installation of more than 1,000 systems worldwide. As a pioneer in fog system design, he established Mee Industries as the global leader in high-pressure water fog technology. A named inventor on two U.S. patents and author of numerous peer-reviewed papers, Thomas continues to define the industry standard for innovation and performance.