Hi All
I am trying to understand the concept of evaporative cooling. In cooling tower, due to evaporative cooling hot water gets cooled. In this case the energy for latent heat of vaporization is taken from the water itself and air becomes hotter.
In swamp/air coolers we use at home, how air gets cooled instead of water itself? What is driving the water molecule to take the required latent heat from air instead of water.
The above also applies to our human body perspiration and subsequent cooling of human body.
Please clarify.
Vijay