
Liquid direct cooling: rack-type liquid immersion cooling system!
~Reduces cooling energy by 92%, applicable to data centers from 2023~
TokioX report from NTT DATA disclosure materials
NTT DATA and MHI: June 16, 2023 NTT DATA directly cools servers in existing data centers with liquid.
We built a rack-type liquid immersion cooling system.
Liquid immersion cooling is a next-generation cooling method that achieves efficient cooling by immersing IT equipment in an insulating liquid.

What is a rack-type liquid immersion cooling system:
Immerse your IT equipment in a special insulating liquid for efficient cooling.
Rack-type, single-phase liquid immersion cooling system: Until now, NTT DATA has operated in air-cooled operation.
In the future, we will adopt a single-phase, non-boiling liquid immersion cooling system. “70% of the current air cooling operation procedure” is used as it is.

Conventional tank type liquid immersion cooling system:
Verified with the conventional tank type at the data center EAST. We confirmed that “operability is improved by 173%”.
As a result of applying the immersion cooling method, the cooling energy is reduced by 92% according to our own standards. It will apply to data centers from 2023.