What Is Dry Cooler?_
A dry cooler is a radiator-like device used to dissipate heat from a closed-loop liquid cooling system into the outside air. It operates by passing hot coolant through finned tubes while fans blow air across the fins, transferring heat without water loss through evaporation. This makes it a low-maintenance, water-conserving alternative to cooling towers in data center heat rejection.
Technical Details
Dry coolers are typically installed outdoors and consist of multiple fans, finned coils, and a control system that modulates fan speed to maintain target coolant temperatures. The heat rejection capacity depends on ambient dry-bulb temperature, fin density, and airflow, with performance derating as outdoor temperature rises. They are often paired with a fluid cooler or chiller for supplemental cooling during peak heat loads, and require regular cleaning of fins to prevent fouling from debris or dust.
How Leviathan Systems Works with Dry Cooler
During Leviathan Systems field deployments, dry coolers are part of the facility-side mechanical infrastructure that connects to the CDU (Coolant Distribution Unit) inside the data hall. Our crews verify proper piping connections, fan operation, and control integration during commissioning to ensure the dry cooler can reject the full heat load from GPU racks.
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