Immersion cooling has recently been a frequently explored possibility for efficient server operation, and when we talk about boiling liquid in relation to it, of course we do not mean water, although of course there are components whose operation could bring water to boiling.
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Microsoft decided to test the operation of its servers in the data center using two-phase immersion cooling, which in practice are large containers resembling counter freezers. They are filled with a special liquid from the company 3M, whose boiling point is around 50 ° C. This is the normal operating temperature of computer components, ie they transfer their thermal energy to the ubiquitous fluid, which, when the required temperature is reached, begins to boil and thus evaporates rapidly.
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The evaporated liquid then condenses the cooled parts of the container so that it can then return to the tank. Accordingly, it is precisely a two-phase cooling with reference to two states of cooling medium in a closed system.
According to Marcus Fontoura (CVP and Chief Architect of Azure, Microsoft), such a compact cooling system is very efficient and minimizes energy losses. However, just underwater project Natick it can be even more efficient, because in his case the heat is simply dissipated into the sea, but as already mentioned, access to such hardware is much more complicated and it is not enough to just wait for the system to cool down a bit and lift the lid. –
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