Our 20K refrigerators can be used to cool any cryogenic application that requires refrigeration capacity of between 500W and 14kW and above.

Our refrigeration systems are generally intended for cold Neutron sources and their design is tailored to meet the needs of customer applications. They include the refrigerator capable of delivering helium at the temperature required (around 20K) and the fluid storage and distribution system and occasionally the helium cooled Hydrogen/Deuterium system.

Applications

Cold neutron sources
Deuterium distillation

Key benefits

Qualification at Air Liquide: potential to test Hydrogen facilities in the DTA testing area
High performance: optimally efficient tailor-made systems that can reduce operating costs
Reduced maintenance: through the choice of highly reliable components that require less maintenance
Smaller operating teams: automation means that units can work on standard timetables and not in shifts (3-shift system etc.)

Main technical characteristics

Lubricated screw compressor
Oil separation and cycle pressure management system
Cold box with built-in Air Liquide static gas bearing turbines
Automatic management of system cool-down, design operating state of refrigerator and turnaround
Helium/Hydrogen (or Deuterium) exchangers with associated transfer and storage systems

Standards

ASME Stamp U (USA) - HPGSL (Japan) - AQSIQ (China)
CE Marking / ASME with no stamp

References

ILL (France)
CEA Saclay Orphee Reactor (France)
GKSS (Germany)
HMI (Germany)
ANSTO-INVAP (Australia)
Helium / hydrogen refrigeration for ISIS Target Station 2 (UK)

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Refrigeration around 20 K

Applications

Key benefits

Main technical characteristics

Standards

References

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