Aktuelle Forschungsprojekte

Image Investigation of materials
Image Computational fluid dynamics CFD
Image Software modules
Image Corrosion inhibitor for ammonia absorption systems
Image Performance tests of refrigerant compressors
Image Thermostatic Expansion Valves
Image Cryostats, Non-Metallic and Metallic
Image Test rigs for refrigeration and heat pump technology
Image Multifunctional electronic modules for cryogenic applications
Image High temperature heat pump
Image High Capacity Pulse Tube Cooler
Image Test procedures for electrical components
Image Service offer for Leak Detection and Tightness Test
Image Combined building and system simulation
Image Certifiable connection types in cryogenics
Image Laseroptical measurement

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Low Temperature Measuring Service

Industry and R&D

Dr. rer. nat. Matthias Schneider

+49-351-4081-5126

Measurement of Thermal Properties at Low Temperatures

The cool down to cryogenic temperature causes thermal stress within the structure of components or complete devices. Furthermore thermal material properties could change crucial.

Samples can be proved down to 10 K via temperature cycling tests and/or measurements of the thermal conductivity, the coefficient of thermal expansion (also as integral for large sample dimensions) and the heat capacity.

Thermal Tests (Cycling)

IndicatorMinimalMaximal
Cool down rate25 K/h200 K/min
Cool down cycles1Customer preference
Measuring accuracy1 %5 %
 Temperature range80 K (5 K)450 K
Sample preparationCustomer material
Sample dimensionup toØ 400 mm x 550 mm
other  dimenions on request

Thermal Conductivity

IndicatorMinimalMaximal
Measuring range10-2 W/(m K)103 W/(m K)
Measuring accuracy1 %5 %
 Temperature range10 K350 K
Sample preparationCustomer material
Sample dimensionup toØ 60 mm x 20 mm
other  dimenions on request

Heat Capacity

IndicatorMinimalMaximal
Measuring range10 J/(kg K)10 J/(kg K)
Measuring accuracy1 %5 %
Temperature range10 K350 K
Sample preparationCustomer material
Sample dimensionup to150 x 150 x 150 mm3
other  dimenions on request

Coefficient of Thermal Expansion

IndicatorMinimalMaximal
Measuring range10-6 K-110-4 K-1
Measuring accuracy0.1 %5 %
Temperature range10 K350 K
Sample preparationCustomer material
Sample dimensionup to200 x 200 x 200 mm3
other  dimenions on request

Your Request

Further Projects - Research and Development

Image

Refrigerants, lubricants and mixtures

Determination of working fluid properties

Image

Reduction of primary noise sources of fans

...using numerical and experimental methods with contra-rotating axial fan

Image

Micro fluidic expansion valve

for increasing of the efficiency of small and compact cooling units

Image

Hydrogen and methane testing field at the ILK

Simultaneously pressures up to 1,000 bar, temperatures down to -263°C

Image

Low noise and non metallic liquid-helium cryostat

Low-noise Magnetic Field Cryostat for SQUID-Applications


Contact

Institut für Luft- und Kältetechnik - Gemeinnützige Gesellschaft mbH
Bertolt-Brecht-Allee 20, 01309 Dresden


Reception ILK Dresden

+49-351-4081-5000

+49-351-4081-5099

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