The new 14’ x 26’ PHW Parallel Hybrid Closed Circuit Cooler was designed to maximize capacity and optimize energy efficiency in EVAPCO’s single largest closed circuit cooler cell available. It offers more capacity and layout flexibility than ever before. The PHW offers high tonnage capability specifically for Industrial Plants, Data Centers, and Large HVAC applications, where the end user requires the fewest number of units, connections, and fans. This mechanical induced draft, crossflow Closed Circuit Cooler utilizes EVAPCO’s Crosscool™ Internal Tube Enhancement with the patented elliptical tube Sensi-Coil® Technology and includes EVAPCO’s New and Improved XPak™ Crossflow Fill, on both the 14’ x 26’ and the 12’ x 24’ PHW. The PHW has undergone extensive thermal testing to ensure each closed-circuit cooler will perform as specified. As with all EVAPCO products, each PHW closed circuit cooler is supplied with a written Thermal Performance Guarantee.
Hot process fluid enters the coil through the bottom coil connection(s). Cooled water from the unit basin is pumped through spray distribution nozzles and floods over the coil(s). Ambient air is simultaneously drawn into the unit at the top in parallel flow with the water over the coil. A portion of the recirculated water evaporates into the air stream. This evaporation process and the cooled water flowing over the tubes removes heat from the process fluid. The cooled process fluid leaves the coil through the top coil connection(s) for return to the system. The recirculated water that was not evaporated falls through a crossflow fill section located below the coil. Air is drawn through the end of the unit and fill section removing additional heat from the water through evaporation. The cooled water collects in the basin for recirculation over the coil.
The hot, saturated air from both the coil and fill sections passes through internal drift eliminators to strip water droplets entrained in the air stream. The unit fan(s) then discharge the saturated air out of the top of the unit at a high velocity, where it dissipates into the atmosphere.