The ECODRY 3DK is a dry-cooling modular system with high performance copper/aluminium finned pack heat exchangers and ventilated with axial fans. It cools the water by using the cooling capacity of ambient air. The system works as a “CLOSED CIRCUIT”.
During high ambient temperature periods (above 30ºC), whenever the Leaving Water Temperature reaches the maximum SET POINT (32º-35ºC) -with fans running at full speed- water from an external source is sprayed on the “ADIABATIC CHAMBER” creating “adiabatic cooling” of the ambient air before it reaches the heat exchanger. The air temperature drops close to the Wet Bulb Temperature (24º-29ºC) and keeps the process water temperature below the maximum SET POINT even with the ambient over 40ºC.
The 3DK Air-Blast Cooler is equipped with brushless fans with direct current motor. Compared with standard fans (equipped with AC motors, with step controlled speed, or with Phase cut), brushless fans grant the following advantages:
GPP = process pumping station, GP series, with High Efficiency → IE3 Grundfos pumps, modular (up to 4 pumps).
GPR = recirculation pumping station with high efficiency → IE3 Grundfos pumps, modular (up to 4 pumps).
GPS = accumulation tank, Aquagel, GPS series. made of Stainless Steel, (2 connections).
3PR = Siemens command and control panel
Its main functions are
3DK system (Blue) vs. Tower System (Brown)