High Density adiabatic dry coolers combine dry-cooling heat exchangers with hydroBLU™, Güntner’s pre-cooling system based on humidification pads, in one compact device. As long as the temperature in the cooling system doesn’t exceed a pre-set threshold, hydroBLU™ remains inactive and no cooling water is used. Once the threshold is passed due to a peak in load or ambient temperature, humidification of the pads is activated and dynamically adjusted by the intelligent control modules GHM and GMMnext. The resulting evaporation chills the air passing through the pads just enough to provide the required level of extra cooling.
By keeping cooling water consumption to the absolute minimum, High Density adiabatic dry coolers use up to 70 percent less water than comparable cooling towers. As the humidification pads dry during normal operation, no disinfection or other expensive chemical water treatment is necessary to ensure hygiene and efficient operation. Avoiding maintenance work, water waste and pollution in this way can easily amount to significant annual savings.