Liquid cooling loop
A liquid-cooling system for a PC works a lot like the cooling system of a car.
Both take advantage of a basic principle of thermodynamics – that heat moves from warmer objects to cooler objects. As the cooler object gets warmer, the warmer object gets cooler.
It’s sole purpose is to transfer heat (energy) away from critical computer components as quickly and effectively as possible, usually to the surrounding environment by dissipating the heat through the radiators.