EWK D
Seleccion EWK D

General Features


  • Low sound level
  • Low height
  • No vibration transmission
  • FRP Casing, for low maintenance and total corrosion resistance
  • Plastic internals for complete corrosion resistance
  • Modular design
  • Integrated frame support
  • Epoxy coated fans

Documentation


Configuration


Model* Dissip. (kW)Dry Weight (kg)Service Weight (kg)Fan Power (kW)Length (mm)Width (mm)Height (mm)Dim. DrawingPlane DWGTechnical Features
WITHOUT ATTENUATION
EWK-D 225/234971814954.3319116122470Open open iconDownload download-icon[-]
EWK-D 225/336071814955.3319116122470Open open iconDownload download-icon[-]
EWK-D 225/437971814956.2319116122470Open open iconDownload download-icon[-]
EWK-D 324/2490101021355.3358518962535Open open iconDownload download-icon[-]
EWK-D 324/3518101021357.0358518962535Open open iconDownload download-icon[-]
EWK-D 324/4546101021358.5358518962535Open open iconDownload download-icon[-]
EWK-D 450/268599028707.1415122092565Open open iconDownload download-icon[-]
EWK-D 450/372099028709.4415122092565Open open iconDownload download-icon[-]
EWK-D 450/4758990287011.4415122092565Open open iconDownload download-icon[-]
EWK-D 680/210351500430010.3518323692600Open open iconDownload download-icon[-]
EWK-D 680/310881500430013.6518323692600Open open iconDownload download-icon[-]
EWK-D 680/411461500430016.4518323692600Open open iconDownload download-icon[-]
EWK-D 900/212752100550012.9648620922600Open open iconDownload download-icon[-]
EWK-D 900/313922100550017.2648620922600Open open iconDownload download-icon[-]
EWK-D 900/415172100550020.6648620922600Open open iconDownload download-icon[-]
WITH ATTENUATION
EWK-DA 225/2349129220694.4419116123465Open open iconDownload download-icon[-]
EWK-DA 225/3360129220695.9419116123465Open open iconDownload download-icon[-]
EWK-DA 225/4379129220697.3419116123465Open open iconDownload download-icon[-]
EWK-DA 324/2490165027755.9458518963550Open open iconDownload download-icon[-]
EWK-DA 324/3518165027758.0458518963550Open open iconDownload download-icon[-]
EWK-DA 324/4546165027759.9458518963550Open open iconDownload download-icon[-]
EWK-DA 450/2685221837367.9509622093600Open open iconDownload download-icon[-]
EWK-DA 450/37202218373610.7509622093600Open open iconDownload download-icon[-]
EWK-DA 450/47581590358013.0509622093600Open open iconDownload download-icon[-]
EWK-DA 680/210353157588111.4617823693890Open open iconDownload download-icon[-]
EWK-DA 680/310883157588115.4617823693890Open open iconDownload download-icon[-]
EWK-DA 680/411463157588118.9617823693890Open open iconDownload download-icon[-]
EWK-DA 900/212753619683314.5749620923890Open open iconDownload download-icon[-]
EWK-DA 900/313923619683319.7749620923890Open open iconDownload download-icon[-]
EWK-DA 900/415173619683324.5749620923890Open open iconDownload download-icon[-]
* Heat rejection at the following conditions: Tin: 35,0 ºC, Tout: 30,0 ºC, Twb: 24,0 ºC

Additional Equipment


  1. Sound attenuators for air inlet and outlet.
  2. Winter Pack (Thermostat & immersion heater)
  3. Variable speed drives
  4. Dosing systems for water treatment

Working Principles


Evaporative cooling towers are the most energy efficient means of cooling water. Hot process water or condenser water from a chiller enters the distribution system at the top of the cooling tower and falls by gravity in counter-flow to the air being drawn or forced through the cooling tower by the fan. As the air passes the water a small proportion is evaporated cooling the remaining water which is collected in the cooling tower sump. The cooled water is then returned to the process or chiller.

The difference between the required cold water temperature and the wet bulb temperature (called the approach temperature), is significant in determining the size of the tower. The smaller the approach the larger the required heat exchange surface. The approach temperature must be at least 3-4 °C.

The heat exchange surface known as packing provides close contact between the air and water in open towers. High efficiency film packings provide a large surface area over which the cooling water is spread increasing the evaporative cooling effect.