Liquid Cooling - Hot water cooling

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Eurotech Aurora HPC solutions:

Eurotech Aurora HPC solutions Aurora Liquid Cooling

Liquid cooling for Eurotech:

L iquid cooling for Eurotech Liquid cooling for us is: Hot. That means: using hot water wherever possible Direct. Taken inside the rack in direct contact with the components Green. Able to use free cooling or natural cooling in any climate zone Comprehensive. . Cools any source of heat in the server (including power supply) Serviceable and safe . Allows ease of maintenance and doesn’t represent a risk for the electronics in the server Plus liquid cooling for us is: Flexible . Offering an engineering solution, a choice of processors , acting on coolant temperature, flow rate to provide to the customer the solution and operating conditions that guarantee maximum performance at the lowest total cost What is liquid cooling is for us

Aurora liquid cooling:

Aurora liquid cooling The main components of the Aurora cooling system are: Cooling circuit , that is the pipe work which bring the water to the heat exchanger and back to the rack The heat exchanger for free cooling Distribution pipes which are mounted in the rack The back plane , which collects the liquid from the distribution pipes and distributes it to the cold plates Cold plates : aluminum boards which are intimately coupled with the electronic boards of compute nodes, PCUs and switches Quick disconnects that are mounted on the cold plates for inflow and outflow of liquid in the plates. The quick disconnects are fine pieces of engineering that seal immediately when the boards is extracted from the back plane. No leakage is possible High level description

Aurora hot water cooling:

Aurora Rack Aurora hot water cooling Heat exchanger Liquid distribution bar Heat Cold Plate Cold Plate Cold Plate Cold Plate Backplane Building Quick disconnects

Aurora liquid cooling infrastructure:

Internal cooling Loop Loop #1 Loop #6 Loop #12 Pump Heat exchanger Dry cooler Filter Aurora liquid cooling infrastructure

Complete Node Card Aurora:

Complete Node Card Aurora Node card covered by the cooling cold plate, with space for optional SSD. 32 of such boards (64 CPUs) packed into 6U

Dry Coolers example: 400 kW installation:

Dry Coolers example : 400 kW installation Redundant (2 fans) Drycooler e.g. ThermoKey 2x dry-cooler 220 kW Cooling installation for 4 racks Aurora Pumps and filter

Advantages of the Eurotech approach:

Advantages of the Eurotech approach Hot liquid cooling Avoid/limit expensive and power hungry chillers with the only cooling method that requires almost always dry coolers only Minimize PUE and hence maximize energy cost savings Reuse thermal energy for heating, air conditioning, electrical energy or industrial processes “Clean” free cooling: no dust, no filters needed to filter external air Direct on components liquid cooling via cold plates Allow very high densities and v ery limited heat spillage Save in maintenance cost thanks to smooth heat distribution (no board and data center hot spots) A seamless hot swap solution that guarantees serviceability and ease of maintenance Eurotech competencies with water cooling First in the market to offer an hot swap liquid cooled solution Years of experience in dealing with water

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