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Free cooling is an economical method of using low external air temperatures to assist in chilling water, which can then be used for industrial processes, or air conditioning systems. The chilled water can either be used immediately or be stored for the short- or long-term.
The latter option, which is the design target of iDataCool, requires a high quality of the heat, which can only be achieved by direct hot-water cooling. One example for direct hot-water cooling is the Aquasar project at ETH Zürich, which is operated at coolant temperatures around 60°C. The aim of iDataCool was to achieve coolant temperatures ...
The PUE for air-cooled data centers includes the power used by the fans and other active cooling components found in the servers. The PUE for liquid immersion cooling excludes these values from the IT Equipment Energy component because these system elements (in particular on-board fans) are generally removed from the IT equipment as they are ...
Close Coupled Cooling is a last generation cooling system particularly used in data centers. The goal of close coupled cooling is to bring heat transfer closest to its source: the equipment rack. By moving the air conditioner closer to the equipment rack a more precise delivery of inlet air and a more immediate capture of exhaust air is ensured.
Motivair, based in Buffalo in New York state, makes units that pump the coolant at very high pressure close to the chips, cooling servers in an efficient way, said Peter Herweck, Schneider's chief ...
Liquid to air heat exchangers (radiators) can be used to cool servers cooled with direct to chip liquid cooling, in order to avoid installation of facility water piping. These heat exchangers can be installed separately from racks, or as a rear door on a rack.
Liquid-cooled racks may cost more up front, but they compensate for it over the long term with cooling cost savings. There is still a huge demand for computing power, so many trends propelling ...
Power cooling density is a measure of how much square footage the center can cool at maximum capacity. [100] The cooling of data centers is the second largest power consumer after servers. The cooling energy varies from 10% of the total energy consumption in the most efficient data centers and goes up to 45% in standard air-cooled data centers.