As data center demand continues to rise, particularly for high performance compute workloads like artificial intelligence (AI), thermal properties such as rack watt density, and processor chip heat flux continue to increase to unprecedented levels. To remove this heat energy, we can no longer rely solely on traditional precision air cooling and must look to liquid cooling to meet the increased heat transfer demands. The most commonly utilized cooling topography for these high heat loads is a hybrid system that couples direct liquid to chip cooling along with precision air conditioning.
Precision air conditioning is well understood and there is significant experience within the engineering community to accurately specify this type of equipment. Direct liquid to chip cooling, while not new, has not been a mainstream solution for data center cooling and there is a pressing need within the engineering community to be able to accurately and precisely specify the components within the liquid to chip ecosystem.
This will be an in-depth discussion on specifying one of the most critical components within the direct liquid-to-chip cooling system: the coolant distribution unit (CDU). We will discuss in detail how to specify single-phase rack/row-based liquid-to-liquid CDUs, as well as single-phase liquid-to-air CDUs.
Topics to be covered will include:
The discussion will include design topics such as best practices for direct liquid-to-chip cooling from sources such as the Open Compute Project (OCP), Nvidia, and ASHRAE’s T.C. 9.9 committee, as well as ASHRAE’s ongoing effort to standardize CDU rating and testing criteria.
In this talk, Dave Meadows, Director of Technology for STULZ USA, Andrew Lindsey, Co-Founder and Chief Executive Officer of Flexnode, and Tarif Abboushi, Chief Technology Officer of Flexnode, will explore strategies, technologies, and facility designs to reclaim stranded power at substations. Attendees will learn about innovative approaches to power management, practical tools for capacity planning, and how to align these efforts with modern cooling solutions to unlock the hidden potential in these facilities.
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