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11 Jul,2024

How much make-up water does the closed cooling tower require?

After prolonged operation and use, the closed cooling tower requires make-up water—so how much water should be added? Let’s find out together!

11 Jul,2024

What factors influence the water temperature in a closed cooling tower?

Currently, how much the liquid temperature inside the closed cooling tower coil has dropped serves as a key metric for evaluating the efficiency of the closed cooling tower. Meanwhile, the factors influencing the liquid temperature within the coil have become a major concern for users.

11 Jul,2024

What are the different circulation methods and phase heat exchange processes in closed cooling towers?

The closed cooling tower is an application form of the tubular indirect evaporative cooler.

11 Jul,2024

What is a wet-bulb temperature? How is it calculated?

Dry-bulb temperature The dry-bulb temperature is the temperature typically measured by a thermometer in ordinary air. In simple terms, it’s essentially what weather forecasts often refer to as Celsius. Wet-bulb temperature The wet-bulb temperature refers to the air temperature when the air reaches saturation under conditions of constant enthalpy. On an air psychrometric chart, it corresponds to the dry-bulb temperature at the point where the air state moves along an isenthalpic line downward until it intersects the 100% relative humidity line.

11 Jul,2024

How is the energy consumption of a closed cooling tower fan calculated?

As the economy develops and society advances, the issue of energy shortages is becoming increasingly severe. Closed cooling towers are widely used in industrial water systems and also represent a key area of energy consumption.

11 Jul,2024

How to correctly select a closed cooling tower!

1. Closed cooling towers are classified according to the type of fan used: induced-draft closed cooling towers and forced-draft closed cooling towers. The fans can be either axial-flow or centrifugal-type. In induced-draft towers, the coil is positioned on the suction side of the fan, creating negative pressure inside the tower, which helps maintain a lower water evaporation temperature. Additionally, the airflow passing through the coil is more uniform, leading to better heat transfer performance. However, this design places the fan directly in contact with moist air, resulting in relatively harsh operating conditions. Currently, most closed cooling towers utilize this configuration. In contrast, forced-draft closed cooling towers have the coil located on the discharge side of the fan, causing positive pressure within the tower. While the airflow distribution isn’t as even as in induced-draft systems—and thus heat transfer efficiency is slightly lower—this setup offers improved working conditions for the fan.

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