Current research projects

Image Energy efficiency consulting - cogeneration systems
Image Refrigerants, lubricants and mixtures
Image Measurement of insulated packaging
Image Range of services laboratory analyses
Image Electrical components in refrigeration circuits
Image Brine (water)-water heat pump
Image Test rigs for refrigeration and heat pump technology
Image 3D - Air flow sensor
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image High temperature heat pump
Image Humidifier System for High-Purity Gases
Image Pulse-Tube-Refrigerator with sealed compressor
Image Service offer for Leak Detection and Tightness Test
Image Development of test methods and test rigs for stationary integrated refrigeration units
Image Calibration leak for the water bath leak test
Image Micro fluidic expansion valve

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Evolution from “Test Laboratory for Heat Pumps” to “Test Center PLWP”

Test services on the highest level

In 2008, the Institute of Air Handling and Refrigeration’s test laboratory for heat pumps received the test procedure-compliant responsibility for the “determination of heat and refrigeration performance on water/water as well as brine/water heat pumps” for the first time by the German Accreditation System for Testing Ltd. (DAP) as part of the accreditation process according to DIN EN ISO/IEC 17025.

Since then, we have constantly extended and flexibilized our range of offers and tasks. Normative tests of air/water heat pumps, cryogenic condensing units, refrigerant compressors, ventilators and heat exchangers have been integrated into the service portfolio of the PLWP – besides the analysis of brine/water heat pumps.

The standard DIN EN ISO/IEC 17025 – established in 2005 and underlying the accreditation – was fundamentally revised and updated by the International Organization for Standardization (ISO) in 2017. This amendment led to the complete reorganization and modernization of the PLWP’s management system.

The evolution of our laboratory by the clearly extended service portfolio – compared to its first accreditation in 2008 – as well as by the adjustment to current accreditation requirements according to DIN EN ISO/IEC 17025:2018 shall be made clear to the professional world by the change of the laboratory’s name as well as the amplification regarding its content.

Since 1 January 2020, our laboratory has been operating under the name Test Centre PLWP at the Institute of Air Handling and Refrigeration (ILK) with the German Accreditation Body (DAkkS) registration number D-PL-11043-01.

The current certificate of the German Accreditation Body (DAkkS) proves the PLWP’s responsibility for the

  • determination of heat and refrigeration capacity (testing field 1) as well as
  • acoustic analyses (testing field 2)

in fluid energy machines and cryogenic components.


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Further Projects

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Mass Spectrometer

Determining the composition of gas mixtures in the high or ultra-high vacuum range

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Tensile and compression testing

Determination of yield strength, tensile strength and elongation at break

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Investigation of material-dependent parameters

Investigation of the permeation behavior

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Cool Up

Upscaling Sustainable Cooling

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Ionocaloric cooling

Ionocaloric solid-liquid phase cooling process