once-through cooling system

What is once-through cooling system?

once-through cooling system meaning also known as open-loop cooling system. Cooling system in which the water is withdrawn from a source, circulated through the heat exchangers, and then returned to a body of water at a higher temperature. See also cooling system, cooling-system type, industrial water use, and thermoelectric-power water use.

 

reference: USGS – Water Use Terminology