Innovative Adiabatic Systems
Ecodry Adiabatic Coolers | Patented Free Cooling Technology
Ecodry adiabatic dry coolers use ambient air as the primary cooling source, adding a fine evaporative mist on the coil's air-inlet pads only when ambient temperature rises above a programmable threshold. The result is dry-cooler simplicity for most of the year, with adiabatic assist reserved for peak hours — a strategy Frigel calls 'Peak Looping'. In a typical European climate this delivers total free-cooling for roughly 71% of annual hours, partial free-cooling for another ~24%, and mechanical backup for only ~5%.
)and discover all the advantages of our solutions:
Free-Cooling as Standard, Water Only When It's Needed
Stop Wasting Water and Energy: Traditional evaporative cooling towers are high-maintenance cost centers that waste millions of gallons of water and carry severe operational risks. Frigel’s Ecodry Adiabatic Cooling System eliminates these inefficiencies through a closed-loop, intelligent process cooling technology that delivers maximum thermal performance with minimal environmental impact.
Core Performance & Sustainability Highlights
- From 60% to 95% Water Savings: Operates completely dry for most of the year, using water evaporation via thin-mist adiabatic chamber spraying only during peak ambient temperatures.
- PUE improvement: 2.00 (dry cooling) → 1.71 (Peak Looping + Adiabatic)
- Water use ratio (WUE): ~0.2–0.5 L/kWh vs. 1.5–3.0 L/kWh for a cooling-tower plant
- Up to 15% Energy Reduction & 30% COP Improvement: Advanced EC fan motor technology combined with smart demand-driven controls optimizes power consumption in real time.
- Patented CoolPad Chamber: Internationally patented adiabatic chamber with water-drift prevention, flame-retardant material, and GREENGUARD GOLD certification.
- 100% Anti-Legionella Safety: Certified to VDI 2047 Part 2 (Neridion, 2022): no aerosol generation, no bacterial proliferation, no water stagnation.
- Glycol-Free Operation Down to -40 °C: Self-draining gravity coil configurations ensure complete frost protection without costly or environmentally hazardous chemicals.
- Booster System for Extreme Heat: Direct spray cooling engineered for extreme ambient peaks, with no scaling on the coil surface and aerosol-free operation.
- Zero-Maintenance EC Fans: Advanced EC motor technology with integrated Modbus communication and 0–10V control signal on every fan.
- Modular, Wide & Deep: Staged deployment from pilot installations to hyperscale campuses without changing the base technology.
The Operational Advantage: By keeping process water continuously clean and scale-free, Ecodry guarantees constant heat transfer efficiency, zero internal pipe fouling, and minimal ongoing chemical treatments—slashing overall operational running costs, which account for 95% of a cooling system's TCO.
Case Studies
- Norway: Hyperscale data center, 40 MW of Ecodry cooling capacity.
- Finland (Kajaani): On-chip, compressor-less cooling; free-cooling for ~70% of the year using a 30% propylene-glycol mix.
- UAE (Dubai): Waste-to-energy plant, turbine lube-oil cooling at 50°C design ambient: −98.9% water use, −30.5% energy use, and −80% running cost vs. a cooling tower.
- Italy: Chemical / alcohol production plant: cooling-tower replacement for 2 MW, expanding to 6 MW during 2025.
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