Skip to main content
Industry

Thermal Design Has Moved From Rack Airflow to Full-System Power Density

Rising rack power density has turned data center thermal design into a full-system fluid and thermal problem — airflow management alone no longer covers it, and liquid cooling architectures now sit alongside air in the same facility.

Why thermal decides the outcome here

A rack that passes an isolated bench test can still throttle in production once neighboring chassis, hot-aisle containment, and coolant distribution network behavior are all in play. Facility-level thermal decisions and server-level design have to be evaluated together.

Engineering Challenges
  • Server and rack-level airflow management
  • High-density electronics exceeding air-cooling limits
  • Liquid cooling and coolant distribution network design
  • Hot-aisle / cold-aisle containment performance
  • System-of-systems thermal risk across a full facility
Dominant Thermal Physics
  • Rack-in-row aerodynamic interaction
  • Server-level conjugate heat transfer
  • Cold-plate and manifold liquid-cooling flow distribution
  • Facility-level fluid network balancing
Applicable Standards
  • ASHRAE TC 9.9 (thermal guidelines for data processing environments)
  • NEBS GR-63-CORE (as applicable to co-located telecom equipment)
Recommended Simulation Tools
Recommended Measurement Hardware

Simulation shows the design. Measurement proves it.

This is a simulation-led engagement. Measurement hardware is not typically part of a data center thermal program; validation instead relies on facility-level airflow and CFD correlation.

ROIfast™ Services

Paid engineering engagements for this industry.

  1. 01

    Rack-in-row and hot-aisle/cold-aisle airflow simulation

  2. 02

    Coolant distribution network design and sizing with Flomaster

  3. 03

    Two-phase and liquid-cooling feasibility studies with STAR-CCM+

Model the rack, the row, and the room before you build any of them.

Talk to a thermal specialist about full-system power density planning for your facility.

Talk to a Thermal Specialist →