One GE/Alstom GT-26 Gains 38 MW for JFE Steel Japan

JFE Steel Corporation in Chiba, Japan

JFE Steel Corporation, a prominent power producer in Chiba, Japan, initially installed a MeeFog System on their GE/Alstom GT-26 gas turbine in 2003. This system was designed to provide evaporative cooling and a small amount of wet compression. In 2016, the company upgraded to a larger, more efficient MeeFog System, enhancing its capability and significantly boosting power output. The flow rate increased significantly from 42 gpm (160 lpm) to 134 gpm (506 lpm). The system is continues to provide evaporative cooling and now offers 1% of the air mass flow as wet compression spray. The new system provides twenty-four stages of fogging, and produces a 38 MW power boost.

Project Conditions:

Location: Chiba, Japan
Hot day conditions: 35° C & 40% relative humidity
Elevation: 10 meters above sea level
Max power boost: 38 MW
Mee’s scope of work: Supply of fog pump skids, nozzle manifolds, and supervision of
installation and commissioning

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Fog System Design:

Fogging stages: 24
Operating pressure: 2,000 psi
Fog droplet size: 12 microns
Nozzle flow rate: 0.045 gpm (0.17 lpm)
MeeFog nozzle count: 2,976
Pump skid power: 240 HP