Aktuelle Forschungsprojekte

Image Innovative Parahydrogen Generator Based on Magnets
Image Helium extraction from natural gas
Image Software for technical building equipment
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Hydrogen and methane testing field at the ILK
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Filter Tests
Image Investigation of materials
Image Cryostats, Non-Metallic and Metallic
Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image Brine (water)-water heat pump
Image Characterisation of Superconductors in Hydrogen Atmosphere
Image Thermostatic Expansion Valves
Image Intelligent innovative power supply for superconducting coils
Image Energy efficiency consulting - cogeneration systems
Image Refrigerants, lubricants and mixtures

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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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Characterisation of Superconductors in Hydrogen Atmosphere

Are superconductors really compatible with hydrogen?

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Corrosion inhibitor for ammonia absorption systems

An alternative to chromium(VI) compounds

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Development of a Cryogenic Magnetic Air Separation Unit

Oxygen Enrichment by Applied Cryogenic Magnetohydrodynamics

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Software for test rigs

Individual software for complex tests and evaluation

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Brine (water)-water heat pump

Test according DIN EN 14511 and 14825