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Total Data Centre Solutions

End to End Data Center Consultancy

Specialising in new technologies, sales & marketing

Immersion Cooling

What is Immersion Cooling?


Immersion cooling is an IT cooling practice by which IT components and other electronics, including complete servers, are submerged in a thermally conductive dielectric liquid or coolant. Heat is removed from the system by circulating a specialist coolant in direct contact with heat generating components, through a high efficiency heat exchanger and finally exhausted to atmosphere via a dry air cooler or captured to use as hot water or energy.


Immersion cooling is a highly efficient, eco-friendly radical approach to server, storage and switch cooling which:

  • Achieves a PUE better than 1.03.
  • Saves over 95% of energy costs for cooling and equipment.
  • Saves space, time and building costs.
  • Easily achieves densities of over 100kW per 2 rack footprint.
  • Can be deployed in Edge datacentres or warehouses.
  • Reduces carbon footprint.
  • Is a silent technology, improving operators working conditions.
  • Provides a sealed and clean environment.
  • No raised floor requirement.
  • No ‘hot spots’ to maximise server performance.
  • No need to move any air (no need for air handling units).
  • No rapid temperature excursions.
  • Is a modular solution (deploying one or many units at a time).


Submer SmartPods come in a 22u and 45u configuration to dissipate 50kW of heat extraction capacity for either size. On the 45u a further cooling unit can be added for 100kW capacity in 42u The SmartPod 45u is for medium density servers, while SmartPod 22u for HPC and high-density computing.

Submer SmartPods

Submer immersion cooling units 50kW each

Jonathan Evans at DCW
demonstrating dielectric coolant

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