Current research projects

Refrigerants, lubricants and mixtures

Overall System Optimization of Refrigeration Plant Systems for Energy Transition and Climate Protection

Pulse-Tube-Refrigerator with sealed compressor

Air-water heat pumps

Low Temperature Measuring Service

Low noise and non metallic liquid-helium cryostat

Intelligent innovative power supply for superconducting coils

Tribological investigations of oil-refrigerant-material-systems

Low temperature – test facilities

Optimizing HVAC operation with machine learning

Thermal engines

Innovative Manufacturing Technologies for Cryosorption Systems

Reducing the filling quantity

3D - Air flow sensor

Computational fluid dynamics CFD

Preformance measurements of heat exchangers

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Prüfverfahren für Außenluftfilter

Dipl.-Ing. Stefan Holfeld

+49-351-4081-5374

Bewertung von biologisch aktiven Außenluftfiltern

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Further Projects

Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K

high performance efficiency, environmental friendliness, compactness, cost-effectiveness

Intelligent innovative power supply for superconducting coils

Compact, powerful power supply with 4-quadrant converter

Laseroptical measurement

PIV and LDA / PDA

Multifunctional electronic modules for cryogenic applications

Electronic with less wiring effort - more than 100 sensors via one feedthrough

Certifiable connection types in cryogenics

Detachable and permanent connections, adhesive bond / form closure / force closure