Current research projects

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Image Test method for high - temperature heat pump - oils
Image Lifetime prediction of hermetic compressor systems
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Energy efficiency consulting - cogeneration systems
Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image Corrosion inhibitor for ammonia absorption systems
Image Pulse-Tube-Refrigerator with sealed compressor
Image Tensile and compression testing
Image Thermostatic Expansion Valves
Image Innovative Manufacturing Technologies for Cryosorption Systems
Image Modular storage system for solar cooling
Image Tribological investigations of oil-refrigerant-material-systems
Image Breakthrough Sensor for Adsorption Filters (BelA)
Image Range of services laboratory analyses
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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Software modules

Software for properties of refrigerants

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Verification of storage suitability of cryo tubes

Artificial aging of primary packaging for biobanking applications

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Preformance measurements of heat exchangers

Is the heat exchanger properly sized?

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Innovative small helium liquefier

Liquefaction rates from 10 to 15 l/h

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Filter Tests

INDUSTRIAL AND LABORATORY PRECIPITATORS