Energy Efficiency in Cooling Systems: 7 Actionable Steps
Chillers are one of the largest electricity consumers in industrial facilities. Significant savings are possible even with zero-investment adjustments.
This article was automatically translated from the Turkish original.
1. Optimize the chilled water setpoint temperature
If the process permits, raising the supply water setpoint by 1°C typically yields 2%-3% energy savings.
2. Keep the condenser side clean
Every 1°C increase in condensing temperature increases compressor power consumption by approximately 2%-4%.
3. Variable flow pumping
In constant flow systems, pumps run more than necessary for most of the year. Coupling the flow rate to the load using frequency inverters yields over 30% savings in pump energy.
4. Evaluate free-cooling potential
Based on Sakarya climate data, partial or full free-cooling is possible for a significant part of the year.
5. Staged operation
In multi-chiller installations, implement a control strategy that selects the most efficient combination under partial loads.
6. Insulation and leaks
Damaged insulation on chilled water lines and compressed air leaks represent a silent yet continuous loss item.
7. Measure and monitor
Efficiency management is impossible in a system without energy meters and temperature logging. Monitor the kW/RT indicator weekly.
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