Immersion Liquid Cooling: The Strategic Choice for Next-Gen Data Center Performance

Jun 24, 2025

In the age of high-performance computing, artificial intelligence , and machine learning , data centers are under increasing pressure to
deliver greater performance while reducing their environmental impact. Traditional air-based cooling systems are no longer sufficient for
today’s high-density IT workloads, especially as GPU-based systems continue to scale in demand.

At Coolnet, we are committed to leading the shift toward more sustainable, energy-efficient data center infrastructure. Our advanced

Immersion Liquid Cooling solutions offer a cutting-edge alternative to traditional air-cooling methods, providing the high thermal efficiency,
scalability, and eco-friendliness that modern data centers require.

What Is Immersion Liquid Cooling?

Immersion Liquid Cooling is an innovative thermal management approach where IT equipment—such as servers or entire racks—is fully submerged in a dielectric,
non-conductive fluid. This fluid directly absorbs the heat generated by the components and transfers it to an external heat exchange system, significantly improving
thermal performance and reducing energy usage.

At the heart of the solution is a specially designed enclosure that houses the IT hardware. The dielectric fluid efficiently removes heat and circulates through a closed-loop
system, which can include plate heat exchangers, dry coolers, or chilled water systems—depending on the deployment.

Key Features of Immersion Liquid Cooling Technology

1.High-Performance Dielectric Fluids

Uses high-grade dielectric fluids with excellent thermal conductivity, chemical stability, and electrical insulation. These fluids ensure maximum safety and long-term reliable
performance in critical environments.

2. Custom-Built Immersion Enclosures

Immersion tanks are designed for optimal fluid flow, easy maintenance, and seamless integration into new or existing infrastructure. Designs can be tailored to accommodate
various rack densities and space requirements.

3. Scalable Heat Rejection Systems

Modular cooling infrastructure integrates with a facility’s thermal loop, including liquid-to-liquid heat exchangers and hybrid cooling towers, enabling efficient heat rejection
even under extreme workloads.
Immersion Liquid Cooling

Advantages for Data Center Operators

✔ Superior Cooling Efficiency

Immersion Liquid Cooling delivers 100–1000 times the thermal conductivity of air, enabling IT racks to support power densities well beyond 100kW. This makes it ideal for AI
training, edge computing, and HPC environments.

✔ Reduced Power Usage & Operational Costs

By eliminating the need for traditional CRAC/CRAH units and fans, Immersion Liquid Cooling significantly reduces energy consumption—achieving much higher energy
efficiency compared to conventional cooling methods. This leads to substantial long-term cost savings.

✔ Extended Equipment Lifespan

Operating IT components at lower, more stable temperatures reduces thermal stress and failure rates, increasing system reliability and decreasing maintenance frequency.

✔ Compact & Space-Efficient Deployment

Immersion Liquid Cooling allows for higher component density in a smaller footprint, helping optimize valuable data center space and reducing building infrastructure
requirements.

Coolnet: Your Partner in Sustainable Data Center Innovation

With over 32,000 square meters of advanced manufacturing space and in-house expertise in cooling technology, Coolnet is a trusted provider of integrated solutions for
data center infrastructure. Our Immersion Liquid Cooling systems are designed to meet the growing demands of next-generation IT workloads while supporting your
organization’s energy efficiency and ESG goals.

Whether you're building a greenfield hyperscale facility or upgrading an existing server room, Coolnet’s Immersion Liquid Cooling solutions provide the performance,
reliability, and sustainability your business needs to succeed in the digital age.

Contact the Coolnet team for expert consultation and tailored solutions.

Email: info@coolnetsystem.com

Tel/Whatsapp: +86- 18326091011

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