How do hvac cooling towers work

Large office buildings, hospitals, schools typically use a cooling tower as part of their air conditioning systems.

how do hvac cooling towers work

The water dropping by gravity meets head on with the up moving air current sucked in by the fan. This is then pushed around the warehouse or facility by a chilled water pump, with the chilled water flowing up the height of the building to each floor in risers — the pipes which carry the water.

Cooling Tower: Types, Work Process and Industrial Application

The water is thus dropped evenly over the air inlet louvers. Variable flow is a way to maximize the effectiveness of the installed tower capacity for whatever flow the process has.

how do hvac cooling towers work

Bleed or blowdown-the continuous flow of a small portion of the recirculating water to a drain to eliminate dissolved solids-is insufficient by itself to control scale and corrosion and is always ineffective in controlling biological contamination.

The tower blows air through a stream of water causing some of it to evaporate, and the evaporation cools the water stream. It will then be pumped back to the cooling tower to be cooled once again.

how do hvac cooling towers work

The heat from the chiller is transferred to it again. Types of Cooling Towers There are two basic types of cooling towers, open and closed sometimes called direct and indirect. The hot air is then ejected out of the system through the fan, and then the cooled water falls down to the sump, where it will be recycled back through the system and into the heat exchange process below.

How Do Cooling Towers Work?

Prev NEXT. In some large systems, a cooling tower is used instead. In order to have a better understanding of how the HVAC system in a larger office building works, you need to know how the chiller, cooling tower, and air handling unit work together. Because the driveshaft operates within the tower, it must be highly corrosion resistant.

how do hvac cooling towers work

Even with bleed-off or chemical treatment, it is still necessary to control biological contamination. Standalone Systems. Drift eliminators - Designed to remove water droplets from the discharged air and reduce loss of process water, drift eliminators cause the air and droplets to make sudden changes in direction.

How a Chiller, Cooling Tower and Air Handling Unit work together

During the winter, the fluid collects heat from the earth and carries it through the system and into the building. Cooling towers are evaporative coolers used for cooling water or other working medium to near-ambient temperature.

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