Water Cooling

Water is one of the most common cooling agents used in power plants. There are two primary water cooling methods:
Once-through Cooling: In this method, water is drawn from a nearby water source (e.g., river, lake, or ocean), circulated through the power plant’s heat exchangers to absorb heat, and then discharged back into the water source. This method is simple but can have environmental impacts due to the thermal pollution of the water bodies.

Closed-loop Cooling (Cooling Towers): In closed-loop systems, water circulates through the power plant’s cooling system and is cooled by passing through cooling towers. These towers use evaporation to dissipate heat, allowing the cooled water to be recirculated back to the power plant. Cooling towers are more water-efficient than once-through systems but require additional infrastructure.