Current research projects

Image Range of services laboratory analyses
Image Preformance measurements of heat exchangers
Image Calibration of Low Temperature Sensors
Image Brine (water)-water heat pump
Image Ice Slurry Generation
Image Reducing the filling quantity
Image Testing of mobile leak detectors according to DIN EN 14624
Image Innovative small helium liquefier
Image Investigation according to DIN EN ISO 14903
Image Micro fluidic expansion valve
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image 3D - Air flow sensor
Image Non- invasive flow measurements
Image Investigation of material-dependent parameters
Image State of system and failure analyses
Image Optimizing HVAC operation with machine learning

You are here:   /  Home


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.


Your Request

Further Projects

Image

Heat2Power

Refining of fuel cell waste heat

Image

Reducing the filling quantity

How much refrigerant must be filled?

Image

Performance tests of condensing units

Does your condensing unit perform well?

Image

State of system and failure analyses

Cause of the failure unknown?