Current research projects

Image Measurement of insulated packaging
Image Reduction of primary noise sources of fans
Image Hybrid- Fluid for CO2-Sublimation Cycle
Image Refrigerants, lubricants and mixtures
Image Low Temperature Measuring Service
Image In-Situ-Swelling Behaviour of Polymer Materials in Flammable Fluids
Image Tensile and compression testing
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Software for technical building equipment
Image Investigation of coolants
Image Ice Slurry Generation
Image 3D - Air flow sensor
Image Influenced melting point of water by magnetic field
Image IO-Scan - Integral measuring optical scanning method
Image Range of services laboratory analyses
Image Behavior of multiphase cryogenic fluids

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Thermal engines

Industry

Dipl.-Ing. Gunar Schroeder

+49-351-4081-5129

Power Generation from Waste Heat

Principally every refrigeration process could also work as a power cycle. In this way an energy consuming machine which provides a temperature below the ambient temperature turns into a heat engine operating between the ambient and a higher temperature. In a first step cryogenic refrigeration cycles are used reversely as heat engines, as they can handle large temperature gradients.

Thermal engines similar to the Stirling cycles

In cooperation with FOX exhaust systems, the ILK Dresden has developed a waste heat recovery system. The thermal engine dedicated for the car exhaust gas system was now presented at the International Motor Show (IAA, 2011) in Frankfurt for the first time.

With the aid of a model the functionality was demonstrated impressively.

The prototype will deliver an electrical power of 2 kW, at an exhaust gas temperature between 300 and 500°C (570 to 930°F). Currently optimization work, mainly related to generator, is underway. The figure below shows the illustration of the thermal engine in an exhaust tract.

Thermal engines related to other thermodynamic cycles

With several industrial partners heat engines are under development, which operate according to the following thermodynamic cycles:

  • closed and open Joule process
  • valve less Ericsson process

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Further Projects

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Low noise and non metallic liquid-helium cryostat

Low-noise Magnetic Field Cryostat for SQUID-Applications

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Cryostats, Non-Metallic and Metallic

position indenpendent, highest endurance, tiltable for liquid helium and liquid nitrogen

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Calibration of Low Temperature Sensors

According to the comparative measurement method

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High Capacity Pulse Tube Cooler

for Cryogenic High-Power Applications