Data Centre Cooling Technology

Pump-Driven
Two-Phase
Liquid Cooling

Aerospace-derived technology that solves the heat dissipation challenge of high-power AI chips — delivering green, efficient, precise and safe cooling for the next generation of data centres.

Two-Phase Cold Plate 0.5mm microchannels CPU / GPU Heat Source >600W Liquid Refrigerant Liquid-Vapor Mixture Out Temperature Control: 25°C – 85°C ±1.5°C precision Pump-driven pressure adjusts boiling point dynamically
20×
More efficient than single-phase liquid cooling
<1.10
Annual PUE (Dual-Loop system)
±1.5°C
Chip temperature control precision
600W+
Per-chip heat dissipation capacity
Phase Change Physics

Inside the 0.5mm Microchannel

Pump pressure dynamically controls the boiling point. Liquid enters the microchannels cool, absorbs chip heat through the copper plate, undergoes phase change, and exits as a gas-liquid mixture — all held at ±1.5°C precision across a 25°C–85°C operating range.

Liquid coolant Vapour bubble (phase change) Chip heat source (600W+)
Real Deployments

From Lab to Data Centre

Cooling Distribution Unit with pump and copper manifold alongside open server chassis with liquid cooling
Server rack with red and blue liquid cooling pipes feeding each server unit
Installed liquid-cooled server deployment at a data centre facility
The Science

Why Two-Phase
Works

Phase change (liquid → vapour) absorbs vastly more heat than temperature rise alone. That's the physics behind every breakthrough in the system.

Temperature Time / Heat added 100°C Sensible Heat Latent Heat Sensible 1000× more efficient vs air cooling · 20× vs single-phase liquid
The Physics

Latent Heat is the Advantage

When a liquid changes to vapour, it absorbs enormous energy at a constant temperature. Our system harnesses this latent heat — refrigerant flows through 0.5mm microchannels directly on the chip surface, boiling and carrying heat away instantly.

By adjusting pump pressure, we dynamically control the boiling point — keeping chip temperatures precisely within the 25°C–85°C operating window, even as compute loads fluctuate from 200W to 600W+ without any flow rate change.

01

Liquid enters cold plate

Pump drives liquid refrigerant through 0.5mm microchannels bonded directly to the CPU/GPU surface. Chip heat begins absorbing into the refrigerant.

02

Phase change occurs

Refrigerant boils within the channels, absorbing latent heat at constant temperature. The vapour content scales automatically with chip load — no flow adjustment needed.

03

Heat rejected outdoors

The liquid-vapour mixture flows to the CDU and outdoor dry cooler. CPU/GPU temps (50–75°C) are higher than ambient, so natural air dissipation works year-round — eliminating chiller energy for most of the year.

Adaptive Intelligence

Elastic Refrigeration

As chip load rises from 200W to 600W, the system does not need to pump more coolant. Instead, more refrigerant vaporises inside the cold plate channels — absorbing the extra heat automatically through increased latent heat transfer.

This means no complex flow-rate control valves, no sluggish response time, and no overshooting. The system self-regulates at the physics level — chip temperature stays stable even during sudden compute spikes.

200W 400W 600W Low vaporisation Liquid in More vaporisation Maximum vaporisation Same flow rate throughout — no valve adjustments needed Cooling capacity scales automatically with chip heat load via vaporisation ratio
System Configurations

Three Deployment
Options

Configuration 01

Chip-Level Cooling

Two-phase cold plates attach directly to each CPU and GPU. The chip-level CDU connects to an outdoor dry cooler. CPU/GPU operating temperatures (50–75°C) are above ambient year-round, so no chiller is required — only a dry cooler for heat rejection.

PUE<1.15
Annual cabinet PUE
0
Chillers required
Cabinet CDU Coolant Distribution Outdoor Dry Cooler L-V out Liq back Annual PUE < 1.15 · Zero chiller required year-round
Technology Comparison

Best Overall
Performance

Technology PUE Equipment Cost Retrofittable Leakage Risk Reliability
Immersion Cooling <1.1 High No Low High
Spray Cooling 1.1 High No Medium High
Single-Phase Cold Plate 1.25 Medium Partial High Low
✦ Two-Phase Cold Plate (Ours) <1.10 Medium Yes None High

Source: Beijing TransTrue Technology Co., Ltd. product specification deck, 2025

Intellectual Property

Patented & Standards-Setting Technology

This technology originated in China's aerospace sector and has been commercially adapted for data centres. The manufacturer holds 8 Chinese invention patents and 1 US patent (via PCT), and has co-authored national cooling standards.

8
Chinese Invention Patents
1
US Patent (PCT)
National Standards

Standards Participation

01

National Standard for Cold Plate Liquid Cooling

02

National Standard for Liquid Cooling Components for IT Servers

03

Technical Specification for Pump-Driven Two-Phase Cold Plate Liquid Cooling in Data Centres (Chinese Society of Refrigeration)

04

Beijing Energy-Saving Technology and Product Directory

Ready to evaluate this technology?

Our engineers will assess your facility's heat loads and recommend the right configuration — chip-level, backplane, or dual-loop.

Talk to an Engineer