Current research projects

Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Micro fluidic expansion valve
Image State of system and failure analyses
Image High Capacity Pulse Tube Cooler
Image Corrosion inhibitor for ammonia absorption systems
Image Innovative Manufacturing Technologies for Cryosorption Systems
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Investigation of material-dependent parameters
Image 3D - Air flow sensor
Image Preformance measurements of heat exchangers
Image Computational fluid dynamics CFD
Image Innovative Parahydrogen Generator Based on Magnets
Image Filter Tests
Image Development of test methods and test rigs for stationary integrated refrigeration units
Image Swirl-free on the move...
Image Tensile and compression testing

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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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Swirl-free on the move...

...with a contra-rotating fan

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Hybrid- Fluid for CO2-Sublimation Cycle

Cryogenic cooling by CO2 sublimation

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Optimizing HVAC operation with machine learning

Intelligent control of HVAC systems – high comfort with low energy demand

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Industry 4.0 membrane heat and mass exchanger (i-MWÜ4.0)

Linking the entire life cycle of a multi-functional air handling unit

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Innovative small helium liquefier

Liquefaction rates from 10 to 15 l/h