What is Evaporative cooling?
Direct and indirect evaporative systems can reduce compressor energy in suitable climates. Water availability, water quality, plume, and local operating constraints are central to system selection.
Heat-rejection technology • Technology
Evaporative cooling
Water evaporation lowers air or process-fluid temperature before heat is rejected from the data center.
evaporativewaterheat rejectionair cooling
MaturityEstablished
Cooling mediumAir and evaporating water
Typical applicationFacility-level system; density depends on downstream distribution
Architecture
How heat moves
Direct and indirect evaporative systems can reduce compressor energy in suitable climates. Water availability, water quality, plume, and local operating constraints are central to system selection.
01Data-center heat
02air or water loop
03evaporative rejection
Why teams choose it
- Can materially reduce mechanical refrigeration energy
- Well-established controls and service ecosystem
- Effective in many hot-dry conditions
What to validate
- Consumes water and may require treatment
- Performance changes with wet-bulb temperature
- Permitting and community water constraints can limit use
Connected records
Companies in this category
Company
Munters
A climate-control company supplying evaporative cooling, air handling, and heat-rejection systems for hyperscale and colocation facilities.
Kista, Sweden
Company
Johnson Controls
A building-technology and HVAC company supplying chillers, controls, air systems, and heat-rejection infrastructure for data centers.
Cork, Ireland
Connected records
Required equipment
Equipment category
Cooling towers
Evaporative heat-rejection systems that cool condenser or process water near the ambient wet-bulb temperature.
2 tracked suppliers
Equipment category
Data center air handlers
Fan and coil systems that condition and move air through rooms, galleries, or modular data halls.
4 tracked suppliers
Equipment category
Cooling controls
Sensors, PLCs, supervisory software, and control logic coordinate flow, temperature, pressure, alarms, and redundancy.
4 tracked suppliers
Evidence ledger
Primary sources
Profiles distinguish company-reported claims from confirmed operating data. Open the original materials before relying on a specification.
- 01
Direct answers
Frequently asked questions
Concise answers generated from the structured record and its cited evidence.
Where is Evaporative cooling typically used?
Evaporative cooling is classified as established technology. Facility-level system; density depends on downstream distribution.
What are the main advantages of Evaporative cooling?
Can materially reduce mechanical refrigeration energy; Well-established controls and service ecosystem; Effective in many hot-dry conditions.