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Cooling Towers - Types and
Functions
With the onset of Legionnaires’ disease, there has been, what
seems to be, an urgent requirement for a close check on
cooling towers. The government themselves have taken it up
as a priority to curb the same.
With such a scenario, it becomes a prerequisite to have an
idea of a cooling water treatment service provider. Since
1977, HydroChem has been into the industry and provides for
a wide range of services, and that includes Legionella Risk
Management.
But before going further into the treatment process, let’s take
a glimpse of the types of such towers.
What are the various types of Cooling Towers?
Cooling towers come in various sizes and types. And hence,
knowing the pros and cons of each is essential to decide on
which one suits the best for any given project. Following is a
brief description of some of the various kinds.
1. Crossflowing
As the name suggests, it involves water and air flowing
in the form of a cross. The water fed to the boiler flows
vertically. While at the same time, the air is let in
horizontally, across the flow of the water.

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2. Counterflow
In this case, the water and air are allowed to flow in
opposite directions and hence the name counterflow. The
air flows vertically upwards as against the downward
flow of water.
3. Induced Draft
In this case, the fan is placed on top. This way, air is
pulled through the water feed to the top.
4. Forced Draft
The fan is at the base of the tower. Air is pushed in
through air inlets.
That said, How does the Cooling Tower Work?
 Step 1: Water heated up by an industrial process or
condenser from an air conditioner is sent into cooling
towers to bring down the temperature.

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 Step 2: In-between, while passing through the tower, the
water is made to come in contact with as much air
possible through an electric fan.
 Step 3: Once it cools down, the water is sent back to the
condenser, where it absorbs more heat and is then sent
back to the cooling tower to continue the process.
They say prevention is better than cure. And well, when there
have come into place government initiatives and companies
providing services in line with them, why not make the most
of it. A timely check and treatment can save a lot of lives!