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Hybrid Cooling Tower

Hybrid cooling towers can be built either multi-cell or circular form, with either forced-draft or induced-draft fans .  The hybrid cooling technique allows us to utilize the advantage of wet-cooling within the limits of local water resources.

Area of Application
For all industries and for all cooling water quantities and heat capacities.

 For a virtual tour though our cooling tower, click on

Key Features

Advantages of the combination of wet cooling and dry cooling:

• No visible plumes emitted from the cooling tower, thereby avoiding environmental impact like fog and ice formation in the area of roads or residential areas
• Reduction of make up water comsumption in comparison to wet cooling systems
• achievement of cold water temperatures like with wet cooling
• Large selection of materials for the construction of the cooling towers:  concrete, impregnated wood, fiber-glass reinforced plastics, steel and other materials
   
• Large selection of detailed solutions in order to satisfy all customer requirements: 
  • Forced-draft and induced-draft fans
  • Up-spray and down-spray nozzles
  • risers from e.g. concrete, glass fiber reinforced plastic or steel inside or outside cells
  • any type of fills
  • any type of fans
  • noise insulation as required
     
• Mobile cell design, cells fit for maintenance and drainage during cooling tower operation
• Compact cooling tower design, small footprint
• Optimum cold water temperature control by fan speed control

 To eliminate visible plumes, the heat output of the air cooler must be calculated so that the relative humidity of the discharge air remains below 100% at point 4..  The line under 1 – 4 may not cross the saturation line.

To reach an optimal mixture of air from the wet and dry sections, the cooling tower must be specially designed because the low construction height allows only a short distance available for blending the two streams.  Therefore, to improve the mixing process, additional mixing features are installed inside the cooling tower.  At the same time, though, pressure drop in the tower must be minimized to keep fan power consumption low.