Coming back to the present, the Redmond-based tech giant has begun submerging its rack of servers in a liquid bath, a process known as “two-stage immersion coolant”. The liquid being used for this process is a non-conducting, fluococarbon. Liquid liquid. It absorbs heat from the server components through direct contact. According to the report, the liquid reaches a low boiling point at 50 ° C. The liquid is then condensed and returned to the inside of the bath. The process starts again. Cycle, a closed loop cooling system. There is no chiller required to condensate the liquid and no energy is required to move the liquid around the liquid, the report stated.
Liquid-bath-based cooling also allows the company to pack the hardware tightly together, thus reducing the amount of space. Compared to air cooling, less space will cool faster through the liquid bath. With the new approach, the company is, for now, only experimenting and testing whether this method is reliable enough for future use and how it can benefit the cloud and AI.
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