IBM launched hot water-cooled supercomputer
IBM has announced the launch of a supercomputer for the Swiss State Institute of Technology Zurich (ETH Zurich). It would not stand out among these, if not for the unique Aquasar cooling system, which, according to IBM, opens up "a new era in energy-efficient computing."
Aquasar is a system of copper microtubes with hot water (60 ° C), which are brought inside the blade servers and closely adjacent to the processor radiators (85 ° C). Water heats up to 65 ° , passes through a closed circuit through a heat exchanger, cools down to 60 ° and comes back. The cycle takes 20 seconds.
The supercomputer cooling system contains 10 liters of water, which is pumped through tubes at a speed of 30 liters per minute.
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According to IBM, such a water cooling system consumes 40% less energy than the use of air-cooled coolers (7–10 ° C is used to cool the air). To directly compare power consumption, IBM in the same data center left several BladeCenter servers with air cooling.
In addition, the water from the pipes can be used to heat the floors and walls in adjacent rooms, which further increases its energy efficiency. The diagram shows how hot water from the heat exchanger can flow into the adjacent circuit (clickable).
In the Zurich supercomputer with a power of 6 teraflops, the cooling system has an efficiency of about 450 megaflops per watt, plus another 9 kW goes to the heating institute.
Aquasar is a system of copper microtubes with hot water (60 ° C), which are brought inside the blade servers and closely adjacent to the processor radiators (85 ° C). Water heats up to 65 ° , passes through a closed circuit through a heat exchanger, cools down to 60 ° and comes back. The cycle takes 20 seconds.
The supercomputer cooling system contains 10 liters of water, which is pumped through tubes at a speed of 30 liters per minute.
')
According to IBM, such a water cooling system consumes 40% less energy than the use of air-cooled coolers (7–10 ° C is used to cool the air). To directly compare power consumption, IBM in the same data center left several BladeCenter servers with air cooling.
In addition, the water from the pipes can be used to heat the floors and walls in adjacent rooms, which further increases its energy efficiency. The diagram shows how hot water from the heat exchanger can flow into the adjacent circuit (clickable).
In the Zurich supercomputer with a power of 6 teraflops, the cooling system has an efficiency of about 450 megaflops per watt, plus another 9 kW goes to the heating institute.
Source: https://habr.com/ru/post/98377/
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