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Immersion cooling is an IT cooling practice by which servers are completely or partially immersed in a dielectric fluid that has significantly higher thermal conductivity than air. Heat is removed from the system by putting the coolant in direct contact with hot components, and circulating the heated liquid through heat exchangers .
EKWB was founded in 2003 by Edvard König, who wanted a better thermal and acoustic performance for his personal computer. As of 2011, EKWB was one of the three largest personal computer water-cooling companies. [5] EKWB works with the overclocking community through forums to better understand the needs of its customers. [6]
Liquid cooling refers to cooling by means of the convection or circulation of a liquid. Examples of liquid cooling technologies include: Cooling by convection or circulation of coolant, including water cooling; Liquid cooling and ventilation garments, worn by astronauts; Liquid metal cooled reactors; Radiators (engine cooling) Cooling towers
Water is inexpensive, non-toxic, and available over most of the earth's surface.Liquid cooling offers higher thermal conductivity than air cooling. Water has unusually high specific heat capacity among commonly available liquids at room temperature and atmospheric pressure allowing efficient heat transfer over distance with low rates of mass transfer.
Liquid cooling is typically combined with air cooling, using liquid cooling for the hottest components, such as CPUs or GPUs, while retaining the simpler and cheaper air cooling for less demanding components. The IBM Aquasar system uses hot water cooling to achieve energy efficiency, the water being used to heat buildings as well. [40] [41]
The science-fiction film The Abyss (1989) depicted an experimental liquid-breathing system, in which the use of highly oxygenated Fluorinert enabled a diver to descend to great depths. While several rats were shown actually breathing Fluorinert, scenes depicting actor Ed Harris using the fluid-breathing apparatus were simulated.
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The Aquasar contains water-cooled IBM BladeCenter Servers (IBM's versions of the bare-bones server computer) and air-cooled IBM BladeCenter Servers in order to contrast the performance of the hot-water coolant and the air cooling. The air-cooled and water-cooled BladeCenters are made up of IBM BladeCenter H Chassis, using a combination of IBM ...