Current research projects

Image Panel with indirect evaporative cooling via membrane
Image Low noise and non metallic liquid-helium cryostat
Image Laseroptical measurement
Image Low Temperature Measuring Service
Image Tribological investigations of oil-refrigerant-material-systems
Image Air-water heat pumps
Image Low temperature – test facilities
Image Testing of mobile leak detectors according to DIN EN 14624
Image Pulse-Tube-Refrigerator with sealed compressor
Image Characterisation of Superconductors in Hydrogen Atmosphere
Image Investigation of materials
Image Cool Up
Image Swirl-free on the move...
Image Combined building and system simulation
Image Heat2Power
Image Investigation according to DIN EN ISO 14903

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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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Brine (water)-water heat pump

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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Air-water heat pumps

Test according DIN EN 14511 and 14825

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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