VERTIV
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Data centres are densifying, with operators packing more computing power into less space. This creates substantial thermal management challenges that air cooling systems alone cannot address.
The shift toward higher operating temperatures A significant trend in data centre cooling is the move toward higher operating temperatures. To cope with high performance computing, next-gen chip technology is evolving rapidly, which is causing the water working temperature threshold to increase. Primarily, cooling is necessary to maintain the reliability of IT equipment, but the rising operating temperatures bring additional benefits such as reduced energy consumption and greater potential for heat recovery. A good example is the Vertiv™ CoolLoop Trim Cooler, one of several new Vertiv solutions that meets this need by offering a platform that can adapt to a wide range of supply/return water temperatures up to 40/50°C, making it ideal for the evolving demands of AI-driven data centres. In its air-cooled version, it provides almost 3MW of cooling in a compact, unique frame, significantly increasing cooling capacity by more than 40% without increasing the physical footprint. This allows data centres to achieve up to 70% greater efficiency at a higher densification.
For data centre partners, helping customers embrace higher operating temperatures opens the door to innovative and more sustainable applications. Heat recovery, for example, enables data centres to capture and repurpose waste heat for secondary uses, such as district heating or industrial processes. Chilled water systems are central to this transition, as they can easily handle elevated water temperatures without sacrificing efficiency.
Supporting densification with advanced cooling Densification is the most pressing
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challenge facing data centre operators. By maximising computing power in smaller physical footprints, operators can achieve greater efficiency. AI rack densities have drastically risen over the past few years, moving from 20kW per rack to up to 130kW per rack today. This density is expected to reach 500kW or more in the coming years resulting in significantly more heat. Long-established air cooling methods can fall short in addressing the thermal intensity of these environments.
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