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Data Center Thermal Management: Performance and Safety Considerations for Coolant Distribution Units

Overview of various CDU designs and applications in liquid-cooled data centers, performance assessment with a focus on ANSI/ASHRAE Standard 127 Addendum b and industry certification programs, and safety evaluation using IEC/UL 60335-2-40 and IEC/UL 62368.

Topic

Air Conditioning & Ventilation

When & Where

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Tue, 10/13/2026 03:20 PM - 03:40 PM

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Hall 8 / 8-512

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Details

  • Format:

    Lecture

  • Language:

    English

Session description

Modern data center workloads such as artificial intelligence (AI), high‑performance computing (HPC) and cloud services are driving unprecedented increases in server power density. As a result, thermal management in data centers now extends well beyond traditional air‑cooled approaches and increasingly relies on liquid cooling technologies to safely and efficiently remove heat from high‑density IT equipment.

A critical component common to nearly all liquid‑cooled data center architectures is the coolant distribution unit (CDU). The CDU forms the boundary between the technology coolant system (TCS) serving the IT equipment and the facility water system (FWS), enabling effective heat transfer while protecting both systems. As liquid cooling adoptio ...

Speaker

Portrait Mark Skierkiewicz
Mark Skierkiewicz
Principal Engineer for HVAC at UL Solutions