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Induced Draft Tower Systems are two types

Less recirculation than forced draft towersįans and motor drive mechanisms require weather-proof To prevent the water droplets losses within the air, the Drift eliminators are employed in the cooling tower. The high velocity of air leaving the cooling tower minimizes the possibility of recirculation. Most of them are installed with a fan in the upper part of the cooling tower, which lets hot air out and circulates air around.

Recirculation due to high air-entry and low air-exit velocities Suited for high air resistance & fans are relatively quiet The use of these cooling towers is restricted because of water distribution issues, high horsepower fans, and the potential for recirculation. This cooling tower design is similar to an induced draft, but the main distinction is that the air-moving fan is situated in the tower’s middle, allowing air to flow through from below. Mechanical Draft Cooling Towers are three types

Cooling rates depend on many parameters.

Water falls over fill surfaces: maximum heat transfer.

Large fans to force air through circulated water.

Feature of Mechanical Draft Cooling Towers While mechanical draft towers work better than natural draft towers, they use more energy and cost more to operate. The most common fans that are used in these towers are propeller and centrifugal fan. Mechanical Draft Cooling Tower forces air into the building by an air compressor that circulates air around the tower.

Fresh cool air is drawn into the tower from bottom.

They have typically used in big power plants or industries with an unlimited cooling water flow. The towers are high and are shaped in a hyperbolic way to allow for proper airflow. They are classified based on the kind of draft (natural or mechanical) and the direction in which airflow flows (counter or cross). These high, open-topped cylindrical structures provide cooling water derived from HVAC or industrial comfortable cooling flow.

Louvers: equalize air flow into the fill and retain water within towerĬooling towers are typically essential for industrial processes.

Drift eliminators: capture droplets in air stream.

Cold water basin: receives water at bottom of tower.

Fill: facilitate heat transfer by maximizing water / air contact.

Frame and casing: support exterior enclosures.