PowerFog® Case Study

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DUKE ENERGY

New Albany Peaking Plant
6x7E Combustion Turbines
New Albany, MS

PowerFog® Design Ratings

Ambient Conditions
100°F Dry Bulb Temp
78°F Wet Bulb Temp

Cool to Temperature
79°F

Airflow at 79°F
2,217,528 lbs/hr/turbine

Net Capacity Increase
33 MW

Major System Components

(18) SS HP Triplex Pumps
(3) AB 504 Programmable Logic Controllers
(3) Solid State Dew Point Transmitters
(1,320) PowerFog® HP nozzles
Integrated Generator Cooling System
(3) 20,000 Gallon FRP Demin Water Storage Tanks

Pressure Drop

< 0.25 in. w.c. across nozzle manifolds

Cooling Capacity

21°F

Design Cooling Control

1°F

System Installation

Caldwell Energy & Environmental, Inc. Turnkey

PowerChill® Case Study

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EL PASO CORPORATION

Camden Cogen
1x7EA Combined Cycle

PowerChill® Design Ratings

Ambient Conditions
72°F Dry Bulb Temp
66°F Wet Bulb Temp

Cool to Temperature
50°F

Airflow at 79°F
2,353,551 lbs/hr

Net Capacity Increase
10 MW

Major System Components

Chiller: 2,000 Tons Centrifugal
Refrigerant: R-134a
Cooling Coils: 10 (2,035 Tons) Finned Tube
Glycol Pumps: 2 x 350 HP (one stand-by)
Cooling Water Pumps: 2 x 250 HP (one stand-by)
Condensate Pumps: 2 x 3.5 HP (one stand-by)
Glycol Storage Tank: 4,000 Gallons

System Guarantees

Airside pressure drop
< 1.0 in. w.c.

Auxiliary Power Consumption
< 1,942 kW

Turbine Inlet Temperature
50°F

System Installation

Caldwell Energy & Environmental, Inc. Turnkey

PowerStor® Case Study

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KENTUCKY UTILITIES

E.W. Brown Peaking Station
4xGT11N2 Combustion Turbines
Burgin, KY

PowerStor® Design Ratings

Ambient Conditions
95°F Dry Bulb Temp
73°F Wet Bulb Temp

Cool to Temperature
45°F

Airflow at 45°F
2,880,500 lbs/hr/turbine

Net Capacity Increase
88 MW on design
110 MW off design max.

Major System Components

TES Insulated Tanks:
2 x 2,256,000 gallons

Refrigeration Equipment:
  R-717 Compressors: 4 x 1250 HP, 3Ø 4160V
  Evaporators: 8 x 60 Plate
  Evaporative Condensers: 8 x 11,775 MBH

Anti-scaling and anti-biological water treatment system
Chilled water supply and return piping to coils
Inlet filter house modifications

System Guarantees

Airside Pressure Drop
< 1.25 in. w.c.

Auxiliary Power Consumption
On-peak: 2,000 kW
Off-peak: 4,500 kW

Turbine Inlet Temperature
45°F

System Installation

Caldwell Energy & Environmental, Inc. Turnkey