Full Liquid Cooling Makes Data Centers More Energy-efficient

AI applications, high-performance computing, and GPU servers have driven the power consumption of a data center rack as high as 20 kW, 30 kW, or even 50 kW. This increase in power density has posed an unprecedented challenge to conventional cooling systems.

To address this challenge, Huawei developed a full liquid cooling solution. In a closed liquid-cooled cabinet, all heat is dissipated in liquid, reducing the power consumption of cooling systems by 96% and cutting the power usage effectiveness (PUE) from 2.2 to 1.1, compared with a conventional air cooling solution. For a 50-kW cabinet, the annual power saving amounts to about 500,000 kWh. That is equivalent to a reduction of about 237.5 tons¹ of CO₂.

A closed liquid-cooled cabinet: All heat dissipated in liquid