Hybrid Cooling Solution
Modular Trim Cooling
Trim Cooling optimizes energy use by combining free cooling (dry cooler) for pre-cooling with trim chillers that are activated only when the outdoor temperature exceeds 15 °C. This hybrid approach (dry cooler + water or air-cooled chillers) ensures efficient cooling for high-density racks (>50 kW) and significantly reduces energy consumption during the colder months.
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Sustainability Meets PUE Reduction
Frigel’s Modular Trim Cooling Systems deliver high-efficiency and localized process cooling engineered to reduce energy consumption.
Key Aspects of Trim Cooling Technologies:
- Optimal Operation: Free cooling uses air-cooled chillers or dry coolers to manage the heat load at low temperatures; mechanical cooling kicks in only when necessary.
- System Types: Water-cooled chillers combined with dry coolers are highly efficient and allow the dry cooler to assist the condenser even during full mechanical operation.
- High-Density Solutions: With AI and GPU workloads exceeding the limits of traditional air cooling (>50 kW/rack), Trim systems are essential for supporting high-density configurations.
- Energy Savings: Trim Cooling reduces the PUE (Power Usage Effectiveness), bringing it closer to the ideal value of 1.0, compared to traditional mechanical cooling.
Benefits:
- PUE Reduction: Technologies such as adiabatic and in-row cooling reduce energy consumption, optimizing the PUE to approximately 1.2–1.4.
- Liquid-Cooling Integration: Liquid cooling reduces cooling energy consumption by approximately 15% and increases performance per kW by 20% compared to air cooling.
- Airflow Optimization: Hot/cold aisle containment for low densities, rear-door heat exchanger for higher loads: targeted and scalable thermal management.
- Hybrid Operation: The system automatically switches between free-cooling and chiller-trimming modes based on the outdoor temperature, maximizing seasonal efficiency.
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- Targeted "Trim" Temperature Precision: Delivers exact, localized temperature and flow control at individual process points or molds, maximizing thermal transfer efficiency.
- True Modular Scalability: Plug-and-play design allows facilities to easily expand cooling capacity step-by-step as production demands grow, minimizing initial CAPEX.
- Maximum Energy Efficiency: Integrates seamlessly with centralized cooling systems (such as Ecodry adiabatic coolers), utilizing automatic free-cooling modes to slash operational running costs.
- Refrigerant: R290 (Propane) — natural, GWP ≈ 3, ASHRAE safety class A3 and optimized chiller circuit design for optimized refrigerant charge (< 5 kg R-290 per circuit)
- Redundancy: Granular modularity beyond N+2; no single point of failure
- Maintenance downtime for module swap: Zero — modules can be removed 'hot' while the rest of the train stays in operation
- Industry 4.0 & Smart Control: Advanced digital controllers (3PR 4.0 / MiND) for real-time diagnostics, precise parameter tuning, and full connectivity across the plant floor.
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