Are You Experiencing One of These Common Challenges or Concerns with Your Data Center Cooling Management?
Cooling typically accounts for 30% to 40% of a data center’s total energy draw, which means the cooling strategy an operator chooses has an outsized effect on operating costs, uptime, and sustainability targets.
If you have questions, concerns, or experience some of these cooling issues, we’ve provided solutions to some of the most common data center cooling problems below.
1. How Can I Reduce Energy Costs Associated with Data Center Cooling?
Energy consumption is one of the biggest concerns for data center operators. Gartner projects worldwide data center electricity demand will climb 26% in 2026 alone, reaching 132 gigawatts, on its way to an estimated 290 gigawatts by 2030. Traditional cooling systems can be power-intensive, leading to high operational costs.
Solutions to reduce energy costs in Data Center cooling:
- Implement energy-efficient cooling technologies like liquid cooling or direct-to-chip cooling (learn more about data center cooling systems).
- Utilize free cooling (also known as dry cooling) methods, such as airside or waterside economization, to reduce dependency on mechanical cooling. Delta T Systems’ Dry Cooler & Chiller Combo Units automatically switch between dry cooler coils and a variable-speed compressor based on ambient conditions, so the system draws no compressor power at all during cooler outdoor temperatures. That control strategy alone typically delivers 30% to 50% energy savings over a fixed-speed chiller.
- Optimize cooling set points to avoid overcooling, which wastes energy.
2. What Causes Hot Spots in a Data Center, and How Can They Be Eliminated?
Hot spots occur when certain areas in a data center don’t receive efficient cooling, leading to potential overheating and equipment failure. We want to avoid this at all costs!
Solutions to eliminate hot spots in data centers:
- Implement hot aisle/cold aisle containment strategies to improve airflow.
- Use blanking panels and floor grommets to seal gaps and prevent air leakage.
- Use intelligent cooling controls that dynamically adjust cooling based on real-time heat loads.
You can learn more detailed information by clicking on our article: Eliminating Data Center Hotspots.
3. What Are the Differences Between Liquid Cooling and Air Cooling?
Data center operators may find it difficult to choose the best cooling method. While air cooling has been the standard, liquid cooling is gaining popularity for high-performance computing.
Solutions:
- Air Cooling: Uses CRAC (Computer Room Air Conditioning) or CRAH (Computer Room Air Handler) units to manage temperatures.
- Liquid Cooling: More efficient for high-density racks, offering better heat dissipation and energy savings (explore different types of cooling systems).
Best-in-class hyperscale facilities now report a Power Usage Effectiveness (PUE) of roughly 1.08–1.09, well below the global average of about 1.5–1.6, and liquid or immersion cooling can cut cooling-related overhead by 20% to 40% compared to conventional air cooling (Capozzoli & Primiceri, 2015).
4. How Can I Ensure My Cooling Infrastructure Scales with Growing IT Loads?
As data centers expand, cooling requirements increase, leading to inefficiencies if not properly managed.
Solutions for scaling cooling infrastructure:
- Use modular cooling systems that can scale with demand.
- Implement liquid immersion cooling for higher-density workloads.
- Use predictive analytics to monitor trends and optimize cooling resources. For example: DTS Smart Connect™ gives operators remote, real-time and historical access to chiller performance data, active alarms, and chiller health reports.
5. How Can I Make My Data Center Cooling System More Sustainable?
Sustainability is a growing priority for data centers, with increased regulations and environmental concerns. Here are some solutions to help you stay on track.
Solutions for more sustainable data center cooling:
- Implement water-efficient cooling solutions to reduce consumption.
- Invest in renewable energy-powered cooling systems.
- Utilize heat recovery systems to repurpose excess heat for facility heating needs.
6. What Are the Best Backup Cooling Solutions for Critical Infrastructure?
Downtime due to cooling failure can result in catastrophic financial and operational consequences. Ensure your data integrity with backup cooling solutions.
Solutions for back up cooling:
- Implement redundant cooling units to ensure reliability. Delta T Systems’ Redundant Chillers run two full refrigeration circuits off a single tank, each carrying 50% of the load, so the system can be serviced without ever stopping cooling to the process.
- Use battery-powered cooling backups to maintain airflow during outages.
- Regularly maintain and test emergency cooling systems.
7. How Can Data Centers Prepare for Rising AI-Driven Heat Loads?
AI accelerator racks run far hotter and far denser than traditional server racks, and that trend is only intensifying as GPU power draw increases. Cooling infrastructure sized for yesterday’s rack densities can quickly become a bottleneck.
Preparing for rising AI heat loads:
- Right-size chiller capacity for current and near-term rack densities rather than historical averages, since Industrial Central Chillers can be modularly added as load grows.
- Pair chillers with dry coolers, or utilize Dry Cooler & Chiller Combo Units so that rising average loads don’t translate directly into rising average energy costs.
- Monitor rack-level and system-level thermal trends continuously so capacity planning is based on real data rather than estimates.
Addressing data center cooling challenges requires efficient technology, strategic airflow management, and sustainable practices. By implementing these solutions, businesses can ensure optimized cooling performance, reduced energy costs, and improved reliability.
Need help with data center cooling needs? Contact Delta T Systems for insights on choosing the right system.