September 2017

Decades of engineering know-how and innovation has placed EVAPCO at the forefront of evaporative cooling technology. This same level of expertise and commitment to excellence is applied to every stage of the design, development, and manufacturing of our dry and adiabatic products. Coil Design Through the use of computational fluid dynamics (CFD) modeling software, finite element heat transfer analysis, and proprietary coil performance calculation methods, EVAPCO engineers have identified significant design elements to improve the finned coil performance. The extensive computer modeling has

Maximize the water and energy efficiency of your adiabatic unit with the EVAPCO Control Package, featuring operating sequence and fan speed control based on real time heat loads and ambient conditions. Integrated Programmable Logic Controller The UL Listed control package controls fan speed control for all EC or NEMA fans, and provides thermal overload and short circuit protection for each motor. Pushing Water Savings Even Further The EVAPCO Control Package provides solenoid control of the adiabatic pre-cooling system, allowing the unit to automatically run completely dry when conditions

What is adiabatic cooling? Adiabatic cooling systems function similarly to dry cooling systems, but with the incorporation of pre-cooling pads; running water over pre-cooling pads and drawing air through the pads depresses the dry bulb of the incoming air. The depressed dry bulb allows for greater system heat rejection. The result of this is that adiabatic systems are highly effective in hot, dry environments, while using less water than traditional evaporative units. Adiabatic units also deliver the required cooling capacity in a smaller footprint and/or lower fan motor horsepower than a

What is dry cooling? Dry cooling removes heat from a system using sensible heat rejection. The lack of water and any need for water treatment greatly reduces the required maintenance for this type of cooling equipment. Application in coolers and condensers Air flow and surface area are key to maximizing the effect of dry cooling. EVAPCO facilitates this transfer of energy by running process fluid through a series of highly conductive aluminium fins. By constantly drawing large quantities of air through the fins, heat is quickly removed from the system and discharges to the atmosphere. EVAPCO

EVAPCO's dry and adiabatic eco-Air Series units are available with either NEMA or EC (Electronically Commutated) motors. The latest development in energy savings and speed control, EC motors and their high efficiency wing tip fans operate at up to 3dB less than conventional blade fans, and have significantly improved energy efficiency when operating below full-speed. With integrated speed control, EC motors do not require a VFD; each motor can be controlled independently to more greatly control response to changes in thermal capacity requirements.