Current research projects

Image Helium extraction from natural gas
Image Pulse-Tube-Refrigerator with sealed compressor
Image Verification of storage suitability of cryo tubes
Image Micro fluidic expansion valve
Image High temperature heat pump
Image Humidifier System for High-Purity Gases
Image Intelligent innovative power supply for superconducting coils
Image Certifiable connection types in cryogenics
Image Performance tests of refrigerant compressors
Image In-Situ-Swelling Behaviour of Polymer Materials in Flammable Fluids
Image Low noise and non metallic liquid-helium cryostat
Image All-in-one device for freeze-drying and production of biomaterial
Image Cool Up
Image Development of test methods and test rigs for stationary integrated refrigeration units
Image Cold meter
Image Software for test rigs

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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 - Research and Development

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Air-water heat pumps

Test according DIN EN 14511 and 14825

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High temperature heat pump

Using waste heat from industrial processes

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Micro heat exchangers in refrigeration

3D-printing of micro heat exchangers

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Electrochemical decontamination of electrically conducting surfaces „EDeKo II“

Improvement of sanitary prevention by electrochemical decontamination