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Oasis Iceberg
12
2024
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07
What’s the difference between counterflow and crossflow closed cooling towers, and which one should you choose?
The closed cooling tower we usually refer to is, in fact, a closed cooling tower—also known as a hermetic or enclosed cooling tower. It features a tubular heat exchanger installed inside the tower, where circulating air, along with water sprayed over the tubes and water flowing inside the tubes, facilitates efficient heat exchange to achieve optimal cooling performance.
The closed cooling towers we usually refer to are, in fact, known as closed-loop cooling towers—or sometimes called sealed or enclosed cooling towers. These systems feature a tubular heat exchanger installed inside the tower, where circulating air facilitates heat exchange between the external spray water and the internal circulating water, ensuring efficient cooling performance. Within the category of closed cooling towers, there are several distinct types, such as cross-flow closed cooling towers, counter-flow closed cooling towers, and hybrid-flow closed cooling towers. But do you know how these models differ from one another? And more importantly, how can we choose the right type based on our specific needs?
Crossflow Closed-Circuit Cooling Tower: This refers to a cooling tower where hot water flows downward through the packing material, while air moves horizontally and diagonally across the same packing. As a result, the flow directions of the hot water and air are nearly perpendicular to each other—at an angle close to 90 degrees. (Some manufacturers also refer to this type as a cross-flow cooling tower.)
Counterflow closed cooling towers are cooling towers where hot water flows downward through the packing material, while air moves upward through the same packing—creating a nearly 180-degree opposite flow direction between the water and air. (Some manufacturers refer to these as counterflow cooling towers.)
Crossflow Closed-Loop Cooling Tower
Counterflow Closed-Loop Cooling Tower
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