DLC · Direct Liquid Cooling
Direct-to-chip liquid cooling: cold plates remove a named share of component heat through an approved coolant loop. Selection depends on the equipment heat split, component heat flux, airflow/inlet limits, and facility water/rejection envelope—not a universal rack-kW cliff or default.
Cooling that circulates an approved liquid through cold plates on specified components. Residual room-air duty, coolant chemistry, temperatures, flow, pressure, and facility heat rejection remain part of the named equipment design.
Also written as: Direct Liquid Cooling · Direct-to-chip liquid cooling
Current numbers
~165–236 L/minDLC secondary-loop flow per HPE GB200 NVL72 rack (guide water-property heat balance ~165–236 L/min for its 115 kW liquid load at 7–10 °C rise; Clariant PG25 ~172–246 L/min at the same rise)
~45 °C in / ~55 °C out (Rubin example)warm-water DLC return temperature — the mid-grade band that feeds a low-temp district network with a modest lift
~24%share of data-center loss costs that are liquid- or water-related in a multi-year loss review — the category DLC adds a new mechanism to