Views: 0 Author: Site Editor Publish Time: 2026-06-08 Origin: Site
A 120 kW dry cooler is an ideal liquid-to-air heat rejection system for a small to medium array of hydro-cooling ASICs, capable of dissipating heat from roughly 15 to 20 Antminer S19 Hydro units (depending on their exact hashing mode and ambient temperatures).
How the System Works
A liquid-to-air cooling loop protects your hardware while keeping maintenance extremely low:
The Closed Loop: A water/glycol mixture circulates through the Antminer S19 Hydro blocks, absorbing the generated heat.
Heat Rejection: The heated liquid is pumped to the outdoor dry cooler, where forced-air fans blow the thermal energy into the atmosphere.
No Evaporation: Unlike a wet cooling tower, dry coolers do not consume water, preventing mineral buildup and biological growth in your pipes.
Key System Specifications to Look For
When configuring or sourcing a 120 kW system, ensure the hardware meets these essential parameters:
Heat Exchange Capacity: 120 kW (Nominal at Δ T = 15°C difference between inlet water and ambient air).
Fluid Compatibility: Must support either distilled water or a water/glycol mixture (if you live in freezing climates).
Tube & Fin Materials: Copper or stainless-steel tubes with aluminum or epoxy-coated fins. If your setup is in a harsh or coastal environment, anti-corrosion coatings are vital.
Fans: Multiple high-efficiency, low-noise axial fans (typically 2 to 4 fans, 500mm to 800mm in size). Look for fans with EC motors or VFD (Variable Frequency Drive) control so they only spin as fast as necessary, saving you power.
Pump/CDU: You will need a Coolant Distribution Unit (CDU) to safely manage the pressure, flow rate, and fluid quality before the liquid enters the ASICs.
