Cooling Technologies

Liquid Cooling Systems

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Liquid Cooling Systems by Radian

As computing power scales exponentially, so does the heat generated by processors, GPUs, and dense power electronics. Air cooling — though reliable — reaches its practical limits when component power densities exceed what convection alone can manage.

Radian Thermal Products designs and manufactures liquid cooling systems and cold plate assemblies engineered to handle the most demanding thermal loads across AI, HPC, and industrial applications.

Liquid Cooled Solutions

The Growing Thermal Challenge in High-Density Environments

As component thermal densities increase due to the rapid adoption of Artificial Intelligence (AI), Machine Learning (ML) and High Performance Computing (HPC); where GPUs, FPGAs and multi-core CPUs are pushing well beyond traditional thermal envelopes.

Liquid cooling provides up to 5x to 10x  higher heat transfer efficiency than air cooling, ensuring consistent performance even under continuous workloads. Key Drivers:

  • HPC: Increasing transistor density and clock speeds create concentrated heat loads.
  • AI & ML: AI workloads generate sustained high power across multiple chips simultaneously.

Decoding Liquid Cooling Architectures and Approaches

Direct-to-Chip (Cold Plate) Liquid Cooling

Direct-to-chip systems use Liquid Cold Plates mounted directly to processors, GPUs or power devices. A closed-loop fluid circuit transfers heat through a thermally conductive interface, maintaining consistent temperature across each component.
Key Components:

  • Cold Plates: Engineered with precision microchannels for optimal heat flux dissipation.
  • Manifolds and Tubing: Route coolant across devices with minimal flow restriction.
    Pump and Control Systems: Maintain consistent flow rate and pressure within design limits.

This architecture is ideal for dense computing environments where thermal loads are localized and airflow paths are constrained.

Why Liquid Cooling?

Enhancing Performance and Longevity

Liquid cooling enables tighter thermal control, reducing temperature fluctuations that degrade component life and stability.

  • Reduces junction temperatures by up to 40–50% vs. air cooling.
  • Minimizes thermal cycling, improving reliability and MTBF.
  • Supports higher power envelopes and overclocking margins.

Reducing Energy Consumption

In large-scale facilities, liquid cooling can significantly lower total power consumption by reducing dependence on high-CFM fans and air-handling units.

  • Improves Power Usage Effectiveness (PUE).
  • Decreases cooling energy overhead by 20–30%.
  • Enables higher rack densities, reducing real estate and infrastructure costs.

Liquid Cooling Technology for High Performance

Radian provides custom and standard liquid cooling solutions optimized for the most demanding thermal management applications using turnkey systems that integrate; Cold Plates, Manifolds, Pumps and Control Electronics designed for seamless OEM integration.

  • Compact and modular architectures.
  • Designed for reliability under continuous operation.
  • Scalable from prototype to production.
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Micro-Channel Cold Plate

Liquid Cooling Solutions

Semi-Customizable Cold Plate

Liquid Cooling Application

  • Cloud Computing and 5G Infrastructure: High-density server environments benefit from direct-to-chip cooling to maintain optimal performance across compute nodes while minimizing cooling energy requirements.
  • Medical and Industrial Applications: Liquid cooling ensures temperature control for imaging, diagnostic, and high-power industrial equipment, improving accuracy and operational stability.
  • High-Density Computing and Hyperscale Environments: Liquid cooling enables tighter rack configurations and higher compute density without the need for large-scale HVAC expansion — a critical factor for hyperscale growth.

Choosing the Right Liquid Cooling System for Your Needs

Each thermal challenge requires a system-level analysis to balance thermal performance, fluid compatibility, and mechanical constraints. The engineering team at Radian collaborate with OEM teams to define optimal cooling architectures tailored to your power, space and flow requirements.

Evaluating Turnkey Liquid Cooling Solutions and Partner Ecosystems

Selecting a thermal partner with in-house design, manufacturing, and validation capabilities reduces development risk and ensures faster time-to-deployment. Radian’s integrated engineering-to-manufacturing model simplifies sourcing, validation, and long-term supply continuity for OEM and hyperscale environments.

Partner with Radian for Liquid Cooling Expertise

Radian delivers engineered Liquid Cooling Systems and Cold Plates that meet the performance, reliability, and integration standards of today’s most demanding electronics. Radian Thermal combines advanced thermal design expertise with precision manufacturing — ensuring that every cooling system is optimized for both performance and scalability.

Get in touch with our engineering team.

Copper or Aluminum

Custom designs

Rapid Prototyping

Steam away the heat!