Supmea provides instrumentation and monitoring solutions for single-phase immersion liquid cooling systems. Our solutions cover dielectric fluid circulation loops, immersion tanks, heat exchangers, CDU systems, and facility cooling water loops, enabling full visibility and reliable operation of high-density data centers.

What is Single-Phase Immersion Cooling

Single-phase immersion cooling is a liquid cooling technology in which servers and IT components are fully submerged in a dielectric coolant. The coolant absorbs heat directly from electronic components and transfers it to a heat exchanger, while remaining entirely in liquid phase without boiling.

This architecture eliminates reliance on air cooling and significantly improves heat transfer efficiency, making it suitable for high-performance computing, AI workloads, and high-density data centers.

System Architecture

A typical single-phase immersion cooling system includes:

• Immersion Tank
• Dielectric Coolant
• Circulation Pump System
• Filtration Unit
• Heat Exchanger
• Cooling Distribution Unit (CDU)
• Facility Water Cooling Loop

Each subsystem plays a critical role in maintaining thermal stability and operational reliability.

Key Advantages

• High heat transfer efficiency for dense computing environments
• Reduced dependence on airflow and mechanical cooling systems
• Improved energy efficiency and lower PUE
• Enhanced hardware lifespan due to stable thermal conditions
• Compact system design enabling higher rack density

Key Monitoring Points in Immersion Cooling Systems

A stable immersion cooling system requires continuous monitoring of thermal conditions, hydraulic performance, and coolant health. Critical parameters include:

Recommended Instrumentation

Supmea offers a complete range of measurement instruments for immersion cooling systems:

Challenges in Immersion Cooling Systems

Operators of immersion cooling data centers often face:

• Lack of visibility into real-time cooling performance
• Difficulty detecting early-stage anomalies
• Flow reduction caused by filter clogging or contamination
• Limited integration between cooling subsystems
• Inconsistent monitoring across facility and IT cooling loops

Supmea Solution

Supmea enables data center operators to:

• Visualize key cooling parameters across the entire system
• Detect abnormal trends before system failure
• Improve cooling system reliability and uptime
• Optimize maintenance strategies with real-time data
• Enhance overall operational efficiency

Application Scenarios

• AI Data Centers
• High-Performance Computing (HPC)
• Edge Data Centers
• Modular and Containerized Data Centers
• Crypto Mining Facilities

In the heat exchange process, based on whether the coolant undergoes a phase change, it can be categorized into two types: single-phase immersion cooling and phase-change immersion cooling. Servers orother IT components are submerged in a heat-conducting medium or coolant: the coolant remains in liquid form and does not boil or freeze. After coming into contact with the heated components, the coolant transfers heat to the cooling circuit through a heat exchanger. This technology, known as single-phase immersion cooling, achieves 100% liquid cooling and offers superior energy-saving performance. Typically, maintenance requirements for single-phase immersion cooling solutions are much lower, and any adjustments are easier to access and maintain.