Air Blast and Adiabatic Coolers
Sometimes known as Dry Air Coolers, these are ideally suited for a whole range of cooling applications where closed circuit cooling is desirable and cooling to within 3ºC of the prevailing ambient temperature is acceptable all year round.
Each will be individually selected to match the load conditions and various configurations are available to meet space and noise limitations.
Single units can be provided in capacities from 5kW to 2000kW and they can be inter-connected to reach many thousands of kilowatts.
Control of the water temperature is regulated, by controlling fan speed, according to the prevailing ambient temperature
Alternative to Water Cooling Towers
Air Blast Coolers are a practical and cost effective alternative to Water Cooling Towers, which by law have to conform to ACOP L8. The costs of conformance are steep and include:
- Chemical treatment to guard against Legionella
- Water softening to prevent lime scale formation
- Treatment and safe disposal of effluent resulting from routine cleaning and draining
- Water losses and make up due to constant evaporation can also be a significant operational cost.
Wetted Surface “Adiabatic” Coolers
These are air blast coolers with integral spray systems, evenly coating the finned surfaces with a water mist.
A combination of air passing over the coils and the evaporation of the surface water creates a greater cooling effect than conventional dry air cooling allowing lower water temperatures to be reached.
Water costs are minimal because the water spray is only activated when the ambient temperatures are at their highest. This means that only a very few hours of wetted surface operation are necessary each year.
Installed in series with a water chiller, an air blast cooler functioning as a free cooler can make massive energy savings. In low ambient conditions, the air blast cooler automatically cuts in, allowing some or all of the compressors in the chiller to shut down.
For more information or a quotation, please contact us:
Sales Administration Team
Swegon Group UK