HDPE plastic cooling tower incorporates green features.
Delta Cooling Towers has developed a plastic cooling tower that features a seamless, molded
high density polyethylene (HDPE) shell. The
non-corroding, engineered-plastic design will not rust, corrode, or
require downtime for service, the company reports. Upon disposal, the HDPE plastic can be ground and
recycled into other sustainable products.
The cooling tower can run at higher cycles of concentration, thereby saving makeup water. The
counter flow design reduces water splash, especially during high winds or when fans are off at low-load or
low wet-bulb conditions. The water is enclosed and out of sunlight, lessening the chance for biological
growth.
All of the company’s cooling tower models exceed the
energy-efficiency performance levels established by ASHRAE 90.1 standards for cooling towers with axial or centrifugal fans. Their minimum efficiency
values are greater than 38.2 GPM/hp for axial fan cooling towers and 20.0 GPM/hp for centrifugal models
at 95-degree entering water, 85-degree leaving water, and 75-degree wet-bulb temperature.
All of the company’s cooling tower models exceed the
energy-efficiency performance levels established by ASHRAE 90.1 standards for cooling towers with axial or centrifugal fans. Their minimum efficiency
values are greater than 38.2 GPM/hp for axial fan cooling towers and 20.0 GPM/hp for centrifugal models
at 95-degree entering water, 85-degree leaving water, and 75-degree wet-bulb temperature.