Aktuelle Forschungsprojekte

Image Electrical components in refrigeration circuits
Image Test rigs for refrigeration and heat pump technology
Image Heat2Power
Image Development of a Cryogenic Magnetic Air Separation Unit
Image Low Temperature Tribology
Image Panel with indirect evaporative cooling via membrane
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Industry 4.0 membrane heat and mass exchanger (i-MWÜ4.0)
Image Calibration of Low Temperature Sensors
Image Innovative small helium liquefier
Image Cryogenic liquid piston pumps for cold liquefied gases like LIN, LOX, LHe, LH2, LNG, LAr
Image Innovative Manufacturing Technologies for Cryosorption Systems
Image All-in-one device for freeze-drying and production of biomaterial
Image Innovative Parahydrogen Generator Based on Magnets
Image OVERALL SYSTEM OPTIMIZATION OF REFRIGERATION PLANT SYSTEMS FOR ENERGY TRANSITION AND CLIMATE PROTECTION
Image Investigation according to DIN EN ISO 14903

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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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Hydrogen and methane testing field at the ILK

Simultaneously pressures up to 1,000 bar, temperatures down to –253°C

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Low noise and non metallic liquid-helium cryostat

Low-noise Magnetic Field Cryostat for SQUID-Applications

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Cryostats, Non-Metallic and Metallic

position indenpendent, highest endurance, tiltable for liquid helium and liquid nitrogen

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Calibration of Low Temperature Sensors

According to the comparative measurement method