An adiabatic dry cooler is a closed-loop cooling device that removes heat from water or glycol circuits using ambient air. During high ambient temperatures, an adiabatic system pre-cools the incoming air through evaporation before it reaches the heat-exchange coil. The coil itself remains dry, reducing fouling, corrosion, and maintenance compared with traditional evaporative cooling systems.
Data centers use adiabatic dry coolers to reduce mechanical chiller operation, extend free-cooling hours, and lower overall energy consumption. Compared with cooling towers, adiabatic dry coolers consume significantly less water and provide higher operational reliability. This makes them suitable for mission-critical facilities and regions where water availability is limited.
Nominal cooling capacity: 500–1200 kW
Modular unit design enables flexible capacity scaling and redundancy
Provides cooling water for liquid cooling and water cooling systems
Operates as a primary or auxiliary cold source
Dual-mode intelligent control
Variable-frequency EC fans
Staged adiabatic spray system
Automatic mode switching based on ambient temperature and load
Water is used only during high ambient temperature conditions
Controlled adiabatic operation significantly reduces total water usage
Suitable for water-restricted data center projects
Designed for operation at 0–3000 meters
Performance stability maintained under reduced air density
Corrosion-resistant materials for long service life
Seismic-resistant mechanical structure
Integrated fault self-diagnosis
Multiple safety and protection mechanisms
| Adiabatic Dry Cooler | Closed-loop system | Low water consumption | Dry heat-exchange coil | Lower fouling and biological risk | Higher suitability for data centers |
| Cooling Tower | Open water system | High water consumption | Continuous wet operation | Higher maintenance and chemical treatment needs | Less suitable for mission-critical environments |
By extending free-cooling operation and reducing chiller runtime, Shenling Adiabatic Dry Coolers help lower data center energy consumption and improve Power Usage Effectiveness (PUE). Controlled adiabatic operation minimizes water waste, supporting green building goals and sustainable data center development.
Shenling Adiabatic Dry Coolers integrate with:
Liquid cooling loops
Chilled water systems
Hybrid cooling plants
Data center BMS and EMS platforms
Standard communication interfaces allow centralized monitoring and intelligent control within data center infrastructure.
For accurate system selection, the following parameters are required:
Total heat rejection load (kW)
Inlet and outlet fluid temperatures
Design ambient dry-bulb and wet-bulb temperatures
Site altitude
Redundancy requirements
Shenling provides project-specific performance modeling and equipment selection.
1.What is an adiabatic dry cooler used for in data centers?
An adiabatic dry cooler is used to reject heat from cooling water or glycol circuits, reducing reliance on mechanical chillers and improving energy efficiency in data centers.
2.How much water does an adiabatic dry cooler consume?
Water is consumed only during high ambient temperatures for air pre-cooling. Total water usage is significantly lower than traditional cooling towers and depends on local climate conditions.
3.Is an adiabatic dry cooler suitable for liquid-cooled data centers?
Yes. It is commonly used as a cold source for liquid-cooled data centers, including direct-to-chip and other closed-loop liquid cooling systems.
4.Can adiabatic dry coolers operate in hot or dry climates?
Yes. Adiabatic dry coolers are especially effective in hot and dry climates, where evaporative pre-cooling can significantly improve cooling performance.
5.Can the system operate at high altitude?
Yes. Shenling Adiabatic Dry Coolers are designed to operate at altitudes up to 3000 meters.
6.How does an adiabatic dry cooler improve PUE?
By increasing free-cooling hours and reducing chiller operation, the system lowers overall energy consumption, contributing to improved data center PUE.
7.What maintenance is required?
Maintenance typically includes inspection of adiabatic components, water quality management, fan and motor checks, and routine system diagnostics.
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