Current research projects

Image Measurement of insulated packaging
Image Software modules
Image Software for test rigs
Image Modular storage system for solar cooling
Image All-in-one device for freeze-drying and production of biomaterial
Image Development of test methods and test rigs for stationary integrated refrigeration units
Image Test rigs for refrigeration and heat pump technology
Image Multifunctional electronic modules for cryogenic applications
Image Mass Spectrometer
Image Tribological investigations of oil-refrigerant-material-systems
Image Calibration of Low Temperature Sensors
Image Pulse-Tube-Refrigerator with sealed compressor
Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image Filter Tests
Image Reducing the filling quantity
Image Low noise and non metallic liquid-helium cryostat

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Thermostatic Expansion Valves

Industry

Dr.-Ing. Matthias Böhm

+49-351-4081-5211

Does the TXV function correctly?

We support the industry in the development of energy-efficient vapor-compression refrigeration system and compression heat pumps.

The ILK Dresden offers the following services for you:

The ILK Dresden have been active in the field of performance testing of refrigeration compressors and condensing units for over 20 years.

Our offer includes also the investigation of thermostatic expansion valves (TEV) with external temperature sensors.

The tests of the TEV are carried out on a suitable refrigeration cycles (fig. 2), taking into account the following standards

  • AHRI 750 (2007),
  • ANSI/ ASHRAE 17 (2008, fig. 1) and
  • ASERCOM-Statement (9_GER_Dimensionierung_von_TXV_2011)

Current calibrations of the measuring systems are a matter of course.

The test can be carried out with the refrigerants R134a, R404A, R407A, R407C, R407F, R448A, R513A, R452A up to a mass flow of 400 kg/h (~20 kW for R134a).

Additional offerings

The following influences on the valve behaviour can be investigated

  • run-in period
  • hysteresis
  • transient tests / time constant
  • pressure losses
  • sub cooling
  • ambient temperature
  • critical pressure ratio

Your Request

Further Projects - Research and Development

Image

Thermal engines

Power Generation from Waste Heat

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Helium extraction from natural gas

Innovative solutions for helium extraction

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Ice Slurry Generation

Using Direct Evaporation

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Pulse-Tube-Refrigerator with sealed compressor

for mobil use in the hydrogen technology

Image

Low Temperature Measuring Service

Measurement of Thermal Properties at Low Temperatures