Heat reuse opportunities

Computer room air handling unit / Chilled water to air 30°C

This cooling method is much more efficient than traditional air cooling thanks to the chilled water flow. It is the least invasive of the available options and can deliver waste heat up to 30°C. It can be reused in applications like greenhouses, space heaters, fish farming, biomass drying, and in ultra-low temperature district heating.

Examples of heat reuse opportunities:

• Greenhouses
• Space heating
• Fish farming
• Biomass drying
• Ultra low temperature district heating

Examples of heat reuse opportunities with heat pump:

• District heating / Campus heating

Rear door cooling

As suggested in the name, this method is attached to the rear door of each server and allows more efficient access to waste heat. This allows us to capture up to 40°C of waste heat and can be used for desalination to produce potable water on top of all the applications previously listed.

Examples of heat reuse opportunities:

• Green houses
• Space heating
• Fish farming
• Biomass drying
• Ultra low temperature district heating
• Desalination to produce potable water

Examples of reuse opportunities with heat pump:

• District heating / Campus heating

Direct to chip cooling / Cold plate 45°C

This newer technology allows us to capture heat directly from IT chips. Thanks to this closer access, we can reach 45°C and reuse heat in even more applications like wastewater treatment to produce irrigation water.

Examples of heat reuse opportunities:

• Green houses
• Space heating
• Fish farming
• Biomass drying
• Ultra low temperature district heating
• Desalination to produce potable water
• Waste water treatment to produce irrigation water

Examples of reuse opportunities with heat pump:

• District heating / Campus heating

Immersion cooling

The most efficient and close proximity option is immersion cooling. This is where each rack is submerged in a cooling liquid, allowing us to regulate and reuse temperatures directly from each unit to new applications. As it reaches up to 55°C, it can be used in all the applications previously mentioned and for campus/district heating.

Examples of heat reuse opportunities:

• Green houses
• Space heating
• Fish farming
• Insect farming
• Biomass drying
• Ultra low temperature district heating
• Desalination to produce potable water
• Waste water treatment to produce irrigation water
• District heating / Campus heating

Examples of reuse opportunities with heat pump:

• District heating / Campus heating