What Is Heat Rejection?_
In liquid cooling, heat rejection occurs after the coolant absorbs heat from GPU components and flows to a heat exchanger (e.g., a dry cooler or facility water loop interface). The heat is then dissipated to the outside environment or building chilled water system. Effective heat rejection is critical to maintaining coolant temperatures within OEM-specified limits for high-density GPU clusters.
Technical Details
Heat rejection systems typically use a liquid-to-air or liquid-to-liquid heat exchanger, with fans or pumps moving the secondary fluid. The design must account for ambient temperature, humidity, and facility water conditions as specified by the cooling system manufacturer. In data-center deployments, heat rejection capacity is matched to the total thermal load of the rack, often with redundancy per the facility's cooling architecture. Proper flow rates and pressure drops across the heat exchanger are verified during commissioning against the OEM's performance curves.
How Leviathan Systems Works with Heat Rejection
The customer and OEM appoint qualified parties for the applicable cooling-system work and its acceptance. Leviathan does not install, connect, test, commission or maintain liquid systems. Any separately agreed physical IT installation or cabling work retains its own authorized scope and handoff.
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