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Why does the moisture content of air in a small air separation unit decrease after passing through a cooling tower?

Why does the moisture content of air in a small air separation unit decrease after passing through a cooling tower?
Apr 24, 2022
Author: DEAR AST

The main functions of the air cooling tower: heat exchange, washing and buffering.

In low-pressure small air separation unit, the absolute pressure of the compressed air discharged from the air compressor is around 0.6 MPa. After the air is compressed, the water content per unit volume increases so that its moisture content reaches the saturation content corresponding to the prevailing temperature. When the air flows through the air cooling tower, as the temperature decreases, the corresponding saturated moisture content decreases, and the excess will be precipitated from the gas in a liquid state. This part of the water vapour condensation into water, while releasing latent heat of condensation, cooling water increases, the water temperature will also rise, but the air out of the tower temperature is reduced. Therefore, the air in the cooling tower, although the air is in direct contact with water, but the moisture content will be reduced.

Dear has extensive practical experience in researching the technical principles of equipment manufacture and process systems, and the small air separation unit is installed to high quality requirements.

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