What does a closed loop system in liquid cooling refer to?

A closed loop system in liquid cooling refers to a cooling system that recycles coolant in a sealed loop. This design is characterized by a contained system where the coolant circulates through various components, absorbing heat and then returning to a cooling unit to be cooled again.

This method is highly efficient because it minimizes the evaporation of the coolant, reduces the needs for frequent refills, and helps maintain a consistent temperature around the components being cooled. Moreover, since the coolant does not come into contact with the external environment, it is less susceptible to contamination.

This concept is particularly advantageous in scenarios where maintaining an optimal operating temperature is critical, such as in high-performance computing systems or gaming PCs. The use of a sealed loop also allows for improved thermal performance and can reduce noise levels compared to systems that rely on fans.