Aktuelle Forschungsprojekte

Image Cryostats, Non-Metallic and Metallic
Image State of system and failure analyses
Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image OVERALL SYSTEM OPTIMIZATION OF REFRIGERATION PLANT SYSTEMS FOR ENERGY TRANSITION AND CLIMATE PROTECTION
Image Reducing the filling quantity
Image Development of a Cryogenic Magnetic Air Separation Unit
Image Cryogenic liquid piston pumps for cold liquefied gases like LIN, LOX, LHe, LH2, LNG, LAr
Image Preformance measurements of heat exchangers
Image Brine (water)-water heat pump
Image Intelligent innovative power supply for superconducting coils
Image Hybrid- Fluid for CO2-Sublimation Cycle
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Low Temperature Measuring Service
Image Helium extraction from natural gas
Image Air-flow test rig for fan characteristic measurement
Image Corrosion inhibitor for ammonia absorption systems

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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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Filter Tests

INDUSTRIAL AND LABORATORY PRECIPITATORS

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Low Temperature Tribology

Tribological studies at cryogenic temperatures

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Investigation of coolants

Secondary loop refrigerants

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Refrigerants, lubricants and mixtures

Determination of working fluid properties