Current research projects

Image Hydrogen and methane testing field at the ILK
Image Cryostats, Non-Metallic and Metallic
Image Test procedures for electrical components
Image Modular storage system for solar cooling
Image Performance tests of condensing units
Image Test rigs for refrigeration and heat pump technology
Image Cold meter
Image Verification of storage suitability of cryo tubes
Image Testing of mobile leak detectors according to DIN EN 14624
Image Multifunctional electronic modules for cryogenic applications
Image Certification of efficient air conditioning and ventilation systems through the new "indoor air quality seal" for non-residential buildings
Image Laseroptical measurement
Image Characterisation of Superconductors in Hydrogen Atmosphere
Image Low Temperature Measuring Service
Image State of system and failure analyses
Image Pulse-Tube-Refrigerator with sealed compressor

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Innovative small helium liquefier

EuroNorm GmbH (BMWi)

Dr. Erik Neuber

+49-351-4081-5122

Liquefaction rates from 10 to 15 l/h

The goal of the R & D project is to explore new innovative ways to develop the functional model of a "helium liquefier for the small liquefaction rate". The development of such a system should cover the still non-existent area of the market.

 

This liquefier should contain several innovations and technical solutions:

  • Development of a helium liquefaction system with a liquefaction rate of 10 - 15 liters per hour of liquid helium.
  • Development of an innovative pre-cooling stage, which works with a mixture of helium and refrigerants as working fluid.
  • Detailed investigation of an innovative helium cycle within the development of the helium small liquefier with the ability to operate in different operating regimes: helium liquefaction, cooling and temperature stabilization/control.
  • Operation of the condenser with a liquefaction rate that can be varied over a wide range - between 75% and 100%.

Currently, the functional design of the helium small liquefier is being set up. The figure shows a 3D model of the cold box, in which all heat exchangers and cold valves are mounted. In the upper part of the cold box, two prototypes of low flow helium turboexpanders are mounted. All external components, piping and condenser control system are located on the front of the cold box.


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Further Projects

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Mass Spectrometer

Determining the composition of gas mixtures in the high or ultra-high vacuum range

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Tensile and compression testing

Determination of yield strength, tensile strength and elongation at break

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Investigation of material-dependent parameters

Investigation of the permeation behavior

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Cool Up

Upscaling Sustainable Cooling

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Ionocaloric cooling

Ionocaloric solid-liquid phase cooling process