The development of our 80K refrigerators is tailored to give the best possible match with specific application needs.

Whether intended for research centres that use superconductors in their experiments (screening), or for manufacturers who wish to acquire test equipment (HT superconducting cables) or specially developed as part of large-scale development projects, our refrigeration systems are of tailored design.
A number of different processes are available to deliver refrigeration capacity of around 80K in a range from 1kW to several tens of kW, depending on application constraints, and in particular helium, nitrogen refrigerators or systems combining the two.
AIR LIQUIDE offers Brayton cycle helium units, Claude cycle nitrogen units, and simple open systems that use nitrogen.

Applications

Screening (Synchrotrons, Particle Accelerators, Nuclear fusion reactors)
Cooling HT superconducting cable
Space simulation chambers

Key benefits

Easy-to-use: user-friendly interfacing with touch control screen, automatic operation guided by a control system, remote access via modem / internet
Reduced maintenance: self-diagnosis so that breakdowns can be anticipated
Low operating costs: reduced consumption of utilities (compressed air, nitrogen, water, electricity), compact system that can easily be built into existing infrastructures

Main technical characteristics

Air- or water-cooled compressor
Oil separation and cycle pressure management system
Automatic management of compressor, system cool-down, design operating state, turnaround
Systems made reliable through the redundancy of some components

Optional storage and distribution facilities

Standards

ASME Stamp U (USA) - HPGSL (Japan) - AQSIQ (China)
CE Marking / ASME

References

ATLAS
PIRELLI
Helium / Nitrogen Refrigeration for the LIPA superconducting cable

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