Aktuelle Forschungsprojekte

Image IN-SITU SWELLING BEHAVIOUR OF POLYMER MATERIALS IN FLAMMABLE FLUIDS
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Image Development of a Cryogenic Magnetic Air Separation Unit
Image Verification of storage suitability of cryo tubes
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Image Low noise and non metallic liquid-helium cryostat
Image Lifetime prediction of hermetic compressor systems
Image Intelligent innovative power supply for superconducting coils
Image Helium extraction from natural gas
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Air-water heat pumps
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Behavior of multiphase cryogenic fluids

Matthias Schneider

+49-351-4081-5126

experimental und numerical investigations

With the help of this basic research project, processes that occur during the sudden evaporation of cryogenic media should be better understood, described and evaluated. This should create possibilities for improved design and efficient operation of safety elements and power transmitting components in plants with cryogenic media.
A well-founded theoretical understanding of the dynamic calculation and evaluation of boiling cryogenic media will be developed. In order to obtain, for example, a concrete component behaviour under cryogenic conditions, numerical descriptions are required beyond the design calculations, both for fluid dynamics and for the spatial and temporal change in temperature.
Parallel to this, the experimental basis for the design of complex cryogenic components and systems engineering is being improved.
The objectives and results of the preliminary research project include

  • Calculated parameters from various numerical simulations for essential cryogenic components
  • Extensive experimental results for variations of the underlying geometry, advantageous process control, improved design of components
  • Basic thermodynamic processes in gas chillers
  • Calculation algorithms for the description of dynamic heat transport phenomena
  • Evaluation of critical plant conditions
  • Suitable materials for cryostat components and cryogenic plants
  • Novel components e.g. for small helium mass flows

An application project for the development of heat exchangers for cryogenic multiphase fluids is planned.

Video of the mass transfer rate between the liquid and the vapour phase inside a Venturi tube

If you can not see the video, please use the external link to YouTube.


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Further Projects

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Ionocaloric cooling

Ionocaloric solid-liquid phase cooling process

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Low temperature – test facilities

thermal cycling tests at very low temperatures

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All-in-one device for freeze-drying and production of biomaterial

with automated freezing and sterilisation option