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what is chilled water
- Sep 13, 2017 -

Chilled water serves as one of the main components in a hydronic cooling system. These systems utilize water to transfer heat energy from inside of a building to the outdoors, which helps to cool the interior of the structure. Chilled water serves as an alternative to traditional refrigerant, which is used in most air conditioning and cooling systems.

On a typical project, chilled water is produced on site using a large chiller or cooling tank. These devices contain some form of heat exchange system, which captures heat energy in the water and exhausts it to the outdoor. By removing the heat energy, these cooling systems chill the water, allowing it to be used to cool the building. The same water moves through piping within the cooling system in a continuous loop, absorbing heat energy from indoors and expelling it to the outdoors.

Chilled water from the chiller or cooling tank enters the building's air-handling unit through a network of pipes or cools. A fan or blower within this unit blows air over the pipes. The chilled water within the pipes absorbs the heat energy, leaving the air cool. This cool air then travels through the building's duct system to distribute cool air to each room. Fresh chilled water continuously passes through the pipes to absorb more heat energy and keep the air cool.

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