Hot aisle immersion liquid cooling system

Hot aisle immersion liquid cooling systems submerge servers in dielectric fluids for maximum thermal efficiency, and leading manufacturers like DCX, STULZ, and Schneider Electric offer turnkey solutions directly.

Overview of Hot Aisle Immersion Cooling

Hot aisle immersion cooling involves submerging IT equipment in thermally conductive, non-conductive dielectric liquids, allowing heat to be absorbed directly by the fluid rather than relying on air cooling. This method maximizes heat transfer efficiency, reduces energy consumption, and supports high-density racks typical in AI, HPC, and hyperscale data centers . Unlike traditional air-cooled systems, immersion cooling can handle extreme heat loads while maintaining uniform temperature across all components.

Key Features and Benefits

• Energy Efficiency: Immersion cooling eliminates the need for air conditioning in the rack, reducing operational costs and enabling chillerless or low-chiller designs .
• Scalability: Systems can be scaled from single racks to hyperscale deployments, supporting hundreds of servers per tank .
• Uniform Cooling: All submerged components receive consistent cooling, preventing hotspots and improving server reliability .
• Integration Flexibility: Can be retrofitted into existing air-cooled data centers or deployed in new liquid-only facilities .
• Heat Reuse: Some systems allow waste heat recovery for facility heating or other applications, enhancing sustainability .

Leading Manufacturers and Solutions

• DCX Liquid Cooling Systems: Offers DCX HYDRO immersion and direct-to-chip solutions, including Coolant Distribution Units (CDUs) ranging from 100 kW to 5 MW, open CPU/GPU coldplates, and modular immersion data centers. Their systems are configurable for any server platform and support hyperscale AI workloads .
• STULZ: Provides fully enclosed immersion tanks with non-conductive liquids, scalable for high-density racks, and designed for easy integration into existing facilities. They also offer prefabricated liquid cooling systems ready to connect to facility water systems .
• Schneider Electric: Delivers end-to-end liquid cooling solutions for AI and high-density environments, including Coolant Distribution Units and direct-to-chip systems, optimized for chillerless or hybrid cooling .
• Rittal: Offers direct liquid cooling (DLC) solutions with liquid-to-liquid and liquid-to-air options, supporting outputs from 70 kW to 1 MW per rack, designed for hyperscale and medium-density data centers .

Considerations for Deployment

• Fluid Selection: Dielectric fluids must be compatible with server components and provide high thermal conductivity .
• Heat Load Management: Proper sizing of CDUs and flow rates is critical to handle the rack's heat output efficiently .
• Integration: Phased deployment is recommended for retrofitting existing air-cooled facilities to minimize operational disruption .
• Maintenance: Immersion systems reduce dust and humidity exposure but require monitoring of fluid quality and tank integrity .

How to Procure Directly

To purchase hot aisle immersion systems directly from manufacturers, you can:

1. Contact DCX for EU-based turnkey immersion and direct-to-chip solutions, including CDUs and modular data centers .
2. Reach out to STULZ for prefabricated immersion tanks and liquid cooling systems with global support .
3. Engage Schneider Electric for AI-ready liquid cooling solutions and consultancy for high-density deployments .
4. Consult Rittal for scalable DLC solutions suitable for hyperscale or medium-density data centers .

These manufacturers provide technical consultation, design, installation, and maintenance services, ensuring that the immersion cooling system is optimized for your facility's requirements.