Cooling towers are heat removal devices which are used to transfer heat from cooling water to the atmosphere.
What does a cooling tower do?
1)They promote efficient water uses
2)Prevents environmental damages
Animation shown at the University of Michigan website will help you to understand more about hyperbolic stack-natural draft cooling towers.
Increasing Cooling Tower Water Efficiency :By increasing water efficiency of tower, we can save tons of gallons of precious fresh water.
CFD Prediction of Cooling Tower Drift :The CFD (computational fluid dynamics) program predicts plume rise, surface concentrations, plume center-line concentrations and surface drift deposition within the bounds of field experimental accuracy.
Cooling Tower Analysis : Analysis by a team about the performance of four cooling towers and cooling done by them.