Innovative Heat Reuse Systems
Heat Reuse — Dual-Role Chiller & Heat Pump
Technologically advanced solutions for Data Center Heat Reuse. One System, Two Sources: Cold to the Data Hall, Heat to the City.
)and discover all the advantages of our solutions:
Synergo Heat Reuse Systems: High-Efficiency Solution
The same Synergo modules that cool the data hall can simultaneously run in heat-pump mode, lifting rejected heat to temperatures useful for district heating or facility use — up to 95°C hot water in Heat Export Mode, or 65°C+ on standard modular-chiller heat-reuse duty. An intelligent Sequencer assigns each module's role — Chiller Mode or Heat Pump Mode — in real time, so the plant can run anywhere from 100% cooling / 0% heat recovery to 100% cooling / 100% heat recovery, without compromising the chilled-water supply to the IT load.
Key points
Hot water supply, Heat Export Mode: Up to 95 °C
Integral heat-reuse hot water, standard chiller: +65 °C
Heat Export Mode maximizes heat recovery at high condensing temperatures, prioritizing thermal energy export over pure cooling efficiency when a heat off-taker is available.
Reference Project: Simultaneous cold + hot (10 MW) and District heating supply temp. of 75 °C (Case Study: 10 MW Data Center in Denmark with 12 Frigel's Synergo)
Regulatory Tailwind: The EU's revised Energy Efficiency Directive requires data centres above 500 kW to report energy performance, with minimum sustainability standards expected and a climate-neutral goal by 2030; centres connected to district-heat networks benefit from specific exemptions.
Performance and sustainability without compromise
Free Cooling
Free-cooling is a concept whereby ambient air is used for cooling when the ambient temperature is lower than the data hall air (direct free-cooling) or the chilled water (indirect free-cooling).
In hydronic solutions free-cooling starts when external conditions ensure even a minimum coverage of the thermal load requirements. Thanks to the application of modulating free-cooling to maximize the free external source, the percentage of free-cooling increases proportionally in relation to the temperature difference between the internal and external environments, thus notably reducing the contribution of mechanical cooling and maximizing overall system efficiency.
Free-cooling is even more effective with high water temperatures, ensuring maximized energy savings.
Hybrid Dry Coolers
In Hybrid Dry Coolers, adiabatic cooling is made possible by special adiabatic chamber with special aluminum fins which, thanks to optimum water distribution, lower the air temperature due to water evaporation. This means additional operating hours in Free-Cooling mode.
Given the new ASHRAE ranges permitted, it will undoubtedly be even more advantageous in the future to use Hybrid Dry Coolers in Data Centers in applications at increasingly high temperatures as a back-up for cooling operations with chillers.
Total modularity
1. Easily expandable at any time
The Ecodry System allows the installation of the exact capacity required at each stage of plant development.
2. Gradual implementation
Even in existing plants, installing additional units is very simple thanks to the functional and effective modularity design.
3. Exact quantification of costs by line and product
Each unit can measure and record the specific energy consumption for each product.
4. Total reliability
The extreme simplicity, reliability and redundancy of the components of the adiabatic cooling unit minimizes the possibility of plant shutdown due to failures of the cooling system, ensuring the continuity of production 24 hours a day.
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