Natural draft cooling towers use natural convective airflow moving up the stack to cool the water. These systems are very large, very expensive and used mostly by power utility companies.
Other unlisted, specialized, or proprietary cooling method.
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Counter flow design mixes air and water in a vertical flow method where the water is falling and the air is rising. The advantage of this design is a smaller footprint.
A closed loop system works similarly to a refrigeration system. The cooling water is contained inside a closed piping system and evaporative cooling occurs by running water over the pipe containing the heated water.
An open loop system pumps the heated water into a tank at the top of the tower. The water cascades down through a series of louvers or plates in the system while cooling air is moving upwards. The evaporative effect removes heat from the water that is then recirculated back into the process.
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The rating of the motor used to drive the fan in the cooling tower. In the US it will typically be rated in Horsepower (HP) while other countries may use Watts (W).
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The operating weight of the cooling tower should be used to determine where the tower should be placed. For instance, the operating weight cannot exceed the rated load of the roof it will sit on.
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International and all other power requirements that can include 50 Hz frequency supplies.
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Three phase supply refers to the type of power supplied to electrical equipment where there is a 120-degree phase shift between feeder lines.
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Fiberglass reinforced polyester (FRP) is the material of the major body parts of the tower. This material is used in applications where there are components in the water that are highly corrosive to metal.
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Indoor tanks are used instead of outdoor basins in cold climates or where temporary storage is needed. They perform the same function as a regular basin.
Portable cooling towers are available in a fairly wide variety of capacities. They are trucked onto the user site and plumbed into their system. These are temporary installations why maintenance or repair is being performed on the regular site unit.
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