If the spray water is colder than the dew point of the entering air, what is the result?

When spray water is colder than the dew point of the entering air, the result is that the air is dehumidified. This occurs because as cold water droplets mix with the air, they cool the air down. If the air temperature falls below the dew point, moisture from the air condenses into liquid water, effectively removing water vapor from the air and reducing its humidity.

This process is similar to how condensation occurs on a cold surface, where the moisture in the air collects as droplets. Once the moisture condenses out of the air, the relative humidity decreases, resulting in dehumidification. This principle is vital in various HVAC applications, where controlling humidity is essential for maintaining comfort and preventing mold growth.