 Application: Injection of demineralized water into turbine exhaust (“NOX WATER”) to maintain critical NOX levels.
Where In Process?: Kates Automatic Flow Rate Controller is the final control element in the demineralized water or condense system being fed by a centrifugal pump. The Kates controller is physically located in the water skid.
Why Flow Rate is Critical?: When the turbine exceeds a certain rpm the noxious fumes generated exceed the E.P.A guidelines. The injection of water reduces the noxious oxides released. The co-gen units use the low noxious oxide levels generated as a selling feature, making flow control a critical component.
What Alternatives Were Considered: Kates replace several different control valves. None of them could offer the rangeability of the Kates.
Main Reasons for Choosing Kates: Precise flow control under varying pressure and flow range ability. The turbine specification for contaminant size in the demineralized water or condensate is more stringent that the Kates recommended filtration providing water with particles well within the range of the Kates controller to handle.
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