Products & technology

PCM Thermal Energy Storage for AI Data Center Cooling

Enhance liquid cooling with stably suspended nanoencapsulated microcapsules, and buffer heat peaks and cooling transitions with conductive, high-enthalpy UltraST storage. Combine continuous heat transport with short-term cooling reserves.

  • Enhance coolant heat transport
  • Respond rapidly to heat peaks
  • Provide cooling-transition reserves
Data-center cooling-storage concept
Data-center cooling-storage conceptConcept integration of UltraST storage modules and cooling circuits; capacity and interfaces are configured for each project.

Products & key benefits

Functional microcapsules for liquid cooling

Enhance coolant heat transport

Stably suspended microcapsules bring latent heat into the coolant, increasing heat-carrying and temperature-buffering capability; dispersion stability is checked after circulation.

Nanoencapsulated microcapsules and dispersion development for coolants and cooling loops.

Product details

UltraST cooling plates and cores

Respond rapidly to heat peaks

A three-dimensional graphite network transfers heat into PCM. High enthalpy provides transient storage, working with the heat-exchange interface to buffer rising loads.

PCM and plate assemblies selected for supply/return temperatures, release power and space.

Product details

Cooling modules and cabins

Provide cooling-transition reserves

Low supercooling and cycling stability support repeatable capacity recovery, making stored cooling available during a cooling-source transition.

Cores, heat-exchange interfaces and cabins sized for the required buffer duration.

Product details

NANOENCAPSULATED PCM / LIQUID COOLING

Liquid cooling: bring latent heat into the flowing coolant.

Nanoencapsulation forms PCM microcapsules; dispersion design keeps them stably suspended. The coolant can transport heat and provide phase-change buffering, alongside an UltraST storage branch.

Horizontal UltraST platesWater flows through the central channelsReturnOutlet
Microcapsule liquid-cooling loop + UltraST thermal buffer (system concept)
01

Stable suspension, effective dispersion

Design particle size, shell and dispersion together. Assess settling, redispersion and distribution after circulation so microcapsules remain available for heat transport.

02

Reliable encapsulation through repeated circulation

The shell confines the PCM core. Evaluate shell integrity and performance retention under pump shear, thermal cycling and contact with equipment materials.

03

Latent absorption adds coolant buffering

The core absorbs latent heat within its transition range, increasing heat-carrying and buffering capacity there. System improvement also depends on flow, heat exchangers and pump energy.

Conceptual system; interfaces are matched to equipment. Assess added latent capacity separately from system cooling performance, including pressure drop, pump energy, compatibility and circulation stability.

Discuss liquid-cooling materials and validation

ULTRAST + NANOENCAPSULATED PCM

How material strengths become application value.

Combine continuous coolant heat transport with transient PCM storage to size cooling reserves around compute-load changes.

01 / Stable suspension for circulating coolants

Supply dispersed phase-change heat carriers throughout the cooling loop.

Nanoencapsulation and dispersion design keep PCM microcapsules stably distributed in liquid for circulating heat transport.

Data and validation basisMaterial validation: settling, particle distribution and stability after circulation

02 / Encapsulation reliability for real use

Preserve encapsulation under continuous pumping and thermal cycling to limit performance drift.

Assess shell integrity, core retention and interface compatibility, then recheck after the actual process or operating cycle.

Data and validation basisLoop validation: shell integrity, pressure drop, pump energy and compatibility

03 / High conductivity: move heat into PCM faster

Transfer sudden loads into cooling plates and cores more quickly.

A continuous three-dimensional graphite network provides heat paths and reduces internal heat-transfer bottlenecks in UltraST.

Data and validation basisHeat-exchange validation: discharge power at specified flow and temperature difference

04 / High enthalpy: store heat within limited space

Size the cooling reserve for rack-row load and switching duration.

Latent heat stores energy within the selected transition range; usable capacity follows the effective PCM content of the finished product.

Data and validation basisProduct parameter: latent capacity; system design: usable buffer duration

05 / Stable cycling: recover capacity repeatedly

Base repeated cooling transitions on capacity actually recovered.

Confinement limits component migration and phase separation to support thermal performance over repeated charge/discharge cycles.

Data and validation basisDurability validation: enthalpy, transition range and power after cycling

06 / Flame retardancy for safer integration

Select UltraST materials and encapsulation with suitable flame retardancy alongside data-centre equipment safety design.

Flame-retardant selected UltraST formulations work with encapsulation; combustion performance is assessed for the material and finished product.

Data and validation basisTest documentation: combustion performance of the selected UltraST formulation and product

UltraST targets high conductivity and enthalpy, low supercooling and stable cycling, with shape-stable leak-resistant design and flame-retardant selected formulations. Metrics apply to the selected formulation, temperature range and product; microcapsules are assessed for their own materials and processes.

Application solutions

AI & data centers
  1. Cooling source and load loop
  2. PCM buffer branch
  3. Heat exchange interface and PCM plates

Product placement

PCM plates and cores in a cooling loop, connected through heat exchange interfaces.

  1. 01

    Charge the PCM buffer while cooling is available.

  2. 02

    Use stored cooling during a transition or rising heat load to provide a limited recovery buffer.

  3. 03

    Recharge after cooling returns. Capacity for the next event depends on the actual charge state.

EXPLORE FURTHER

Technical resources & validation

Performance and available capacity depend on the product, operating conditions and validation.

From material to module.
02 / Material & System options

From material to module.

UltraST ultra-high-conductivity shape-stabilized PCM powder
— Material option

UltraST PCM + coolant additives

Specify Passive Edge materials into your own thermal subsystem. Use UltraST PCM as the storage medium and nano-coolant additives to lift conductivity of working fluid.

  • PHASE POINTTunable, 20–60 °C window per project
  • FORM FACTORPowder · Plates · Custom geometry
  • DELIVERSMaterial + technical data package
  • FIT FORTeams with internal thermal engineering capacity
Engineered UltraST PCM plate / thermal-buffer core
— Integration option

Thermal-buffer module

Pre-engineered modules built around UltraST cores, with integration interfaces matched to typical liquid-cooling and rear-door heat-exchanger topologies. Validated per project.

  • FORM FACTORModular cores · Rack-adjacent or row-level
  • CAPACITYSized per project — see the calculation tool
  • DELIVERSModule + integration spec + pilot test plan
  • FIT FOROperators wanting integration-ready system blocks
How it works
AI & data centers · Application principle
  1. Cooling source and load loop
  2. PCM buffer branch
  3. Heat exchange interface and PCM plates

Charge the PCM buffer while cooling is available.

Structures and cycles illustrate the principle. Selection, capacity and performance depend on operating conditions and validation.

Related resources Discuss this application
Sizing tools
04 / Calculation tool

Not sure which product fits? Let the selector recommend one for your duty.

The AI Thermal Sizing Tool models peak-shaving and demand offset against your load, topology and tariff. Outputs are directional — actual results depend on project conditions and validation.

Application footage

Discuss this application

Start with your operating conditions.

Supply and return temperatures, peak load, buffer duration and available space.

Define the conditionsSelect materials and structureValidate samples in use
Discuss this application