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Applications : Arctic Environment

 

Environment: Arctic and extreme cold weather areas
Location: Typically latitudes above 50° North
Land Use: Oil production activities including electric power generation, gas compression, crude oil pumping.
Weather: Blowing snow. High winds. Hoar frost. Ice fog. Summertime insect swarms in some areas.
Temperature: -40° to 68° F (-40° to 20° C)
Types of dust: Silica. Quartz. Carbon. Iron. Iron oxide. Sodium.
Dust Concentration: 0.01 - 0.25 mg/m3 0.004 - 0.10 gr/1000 ft3
Particle Size (µm): 1 - 15
Potential damage to gas turbine: Wet corrosion. Foreign object damage due to ice ingestion. Excessively high inlet restrictions due to snow / ice plugging of air intake paths.

Recommended Gas Turbine Inlet Air Filtration System: 

Self-Cleaning Pulse Filter

Experience shows that self-cleaning pulse filter inlet air systems efficiently remove hoar-frost and precipitate ice from the filter cartridges in much the same way that they clean themselves of dust. It has also been shown that, when ambient air is supersaturated, the air downstream of the filter cartridges is just at the frost point, indicating that frost is forming on the outside (air entering face) of the filter elements. Moisture which freezes on the surface of the filters is obviously no longer available to cause icing problems at the bell mouth of the gas turbine. Because the pulse air filter system will pulse clean continuously in cold weather for lengthy periods, it is essential that adequate compressed air be available at all times. 

Self-Cleaning Filter Modifications for Cold Weather Application. 

Several design features should be considered for inclusion in cold weather applications. These include:

  1. Solenoid box heaters
  2. Control box heaters or remote mounted control box in a heated area
  3. Trace heating of manifolds and air valves
  4. Trace heating of compressed air lines from the compressor to the pulse filter
  5. Stainless steel air lines between solenoid boxes and air valves
 
Applications:
Urban Industrial
Offshore
Coastal
Desert
Tropical
Arctic
Applications Home

Pneumafil Gas Turbine Division     PO Box 16348     Charlotte, NC 28297     Phone:  704-399-7441     Fax:  704-398-7528
gtinfo@pneumafil.com