Current research projects

Image Electrical components in refrigeration circuits
Image Air-water heat pumps
Image Overall System Optimization of Refrigeration Plant Systems for Energy Transition and Climate Protection
Image Calibration of Low Temperature Sensors
Image Low noise and non metallic liquid-helium cryostat
Image Corrosion inhibitor for ammonia absorption systems
Image Influenced melting point of water by magnetic field
Image Ice Slurry Generation
Image Intelligent innovative power supply for superconducting coils
Image Development of a Cryogenic Magnetic Air Separation Unit
Image Test rigs for refrigeration and heat pump technology
Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image Performance tests of refrigerant compressors
Image Development of test methods and test rigs for stationary integrated refrigeration units
Image Software modules
Image 3D - Air flow sensor

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Low temperature – test facilities

Industry and research instituts

Gunar Schroeder

+49-351-4081-5129

thermal cycling tests at very low temperatures

Parts and components of machines such as satellites or space telescopes are subject to mechanical stress. In addition to the mechanical stress, the temperatures at which these components are used also have an influence on their strength and thus also on their lifetime. In the area of materials research, material aging and especially for space applications with the very high temperature changes that occur in a vacuum, temperature change tests are essential. These tests normally are combined with subsequent strength testing. With the knowledge gained, e.g. how the component strength changes due to extreme temperature changes, the components can be optimally designed with regard to the special requirements for reliability and minimum weight.

A test chamber has been build up at the ILK Dresden specifically for such temperature change tests. With the help of this thermal cycling chamber, parts or components can be exposed to changing temperatures for different durations. The temperatures can be specified in the range of 20 – 363 K for defined time intervals. The temperature gradients, performing the change from the lowest temperature to the highest temperature or reverse can also be specified in a range. Using a programmable electronic control, temperature profiles can be defined and run through in automated test operation over several hours to several days.

Sample limits Parameter
Temperature range 20 K ... 363 K / -253°C ... +90°C / -423°F ... 194°F
Temperature stability ± 1 K
Dimension, length x width 0,95 m x 0,6 m / 3 ft x 2 ft
Mass up to 30 kg / 66 lb

 


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Further Projects - Research and Development

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Low Temperature Measuring Service

Measurement of Thermal Properties at Low Temperatures