Inlet Air Fogging Upgrade for 2 x GE 7FB.04 Turbines in Wisconsin

Two existing OEM-supplied fog systems were replaced with MeeFog systems. The original systems had five pumps that required excessive maintenance and a winterization procedure that took days to accomplish. The MeeFog system has one water lubricated pump located inside a heated pump shelter. Staging valves provide 16 cooling stages. A VFD slows the pump down as staging valves close to maintain 2,000 psi discharge pressure. Winterization is automatic, drain valves open when the ambient temperature falls below a set point. The fog controls were integrated into the Ovation DCS.