What's Two-Phase
Technology?
At a Glance: Sustainability Metrics
F-Gas/PFAS regulations
If all data centers in Asia switched to
Two-Phase Direct to Chip Cooling...
We'd save enough water to keep the Merlion spitting for over 380 years.
Or have enough water to grow 225 million durians per year.
We'd save enough energy to cook 18.8 billion hotpots per year. That's over 2 hotpots for every person on Earth!
Understanding our Two-Phase Technology
How can I lower PUE and WUE?
Can I lower PUE without changing my infrastructure?
Yes! Here's how:
Removes Geographical
Limitations
Air cooling ties you to cooler climates, but Two-Phase cooling unlocks regions.
Smart Thermal
Control
Two-phase cooling boils coolant at low temperatures, using the physics of phase change to target hotspots automatically and keep your chips stable.
High-Efficiency by
Design
ARA's products include Variable-Frequency Driven ( VFD ) equipment which continuously optimises its performance and lowers your PUE.
Push Cooling to
its Limits
Two-phase cooling leverages the latent heat of phase change to deliver superior thermal performance at a fraction of the flow rate and energy consumption of conventional cooling.
Bang for your buck -
More Tokens, Less Power
Cool it your way, sustainably.
ARA's CDUs are built forefficiency. A 100 kW unit addsonly ~1.5-2% overhead to your IT load's pPUE, meeting OCP Reservoir & Pumping Unit ( RPU ) guidelines. Paired with warm-water direct-to-chip anddry cooling, this can bring down the facility PUE to ≈ 1.1.
2 Phase - PUE to ≈ 1.1
Run Chillerless...
with ARA!
With Two-Phase cooling, you can essentially run chiller - less - where chillers may turn on just a few days a year when the outside air temperature demands it.
No Water Use?
ARA's liquid cooling systems fill once and recirculate continuously, keeping routine water use near zero. From there, your site-level WUE comes down to the heat rejection method: dry coolers keep it close to 0 L/kWh, while cooling towers use water by design.
Superior pumping energy
Under ideal conditions, our Two-phase systems circulates ~0.5 LPM/kW. Compared to single-phase at ~2.0 LPM/kW, two-phase runs at a ~75% reduction in coolant flow, cutting pumping energy substantially.
Oh, did we mention that Two-Phase would use less space in your data centre than traditional cooling methods?
Space for GPUs!
Raise Rack Density from
~50 kW to ~150 kW per linear meter
Reduce Aisle Spacing from
~2.7 meters to 1.5 meters
Keep Your Equipment Safe With Two-Phase
Cools better than air with none of the drawbacks of water
The coolant used in our Two-Phase systems are non-conductive and non-flammable coolant. This means that your most sensitive investments are well protected.
Two-phase cold plates absorb heat by boiling at a near-constant saturation temperature, so local hotspots and transient power spikes are buffered by physics rather than translated into surface-temperature swings - the coolant temperature stays nearly flat as load varies.
For reliable, long-term operation, our two-phase cold plates run at an exit vapour quality of ~0.55, a healthy margin below the critical failure point. This allows it to absorb real-world variations like uneven heating, power spikes, flow changes, and the aging of components.
Efficiency you must see to believe!
Our Two-Phase Technology:
compared to Air Cooling
Dissipation compared
to Single-Phase
Single-Phase cooling
ARA's Line of Two-Phase Products
