Image Multistage Axial Fan
Image Measurements on ceiling mounted cooling systems
Image Free Cooling by Circuit of Refrigerant
Image Low Temperature Tribology
Image Solar-electric Cooling
Image Laughing gas as an alternativ refrigerant for R-23
Image Helium extraction from natural gas
Image Solar Cooling
Image Prüflabor Wärmepumpen at ILK Dresden
Image Optimization of pharmaceutical freezing processes
Image Hydrogen test area at ILK Dresden
Image Membrane-based Air Conditioning
Image Components for Cold Storage Systems
Image Natural gas vehicle for long distances
Image DIN EN ISO 14903 (EN 16084) Refrigeration systems and heat pumps
Image Thermal engines

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Thermal engines

Industry

Dipl.-Ing. Moritz Kuhn

+49-351-4081-627

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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Components for Cold Storage Systems

Flexible energy consumption of cooling systems

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Test rigs for refrigeration and heat pump technology

Performance tests according to standard

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Filterprüfung

Prüfverfahren und Prüfvorrichtung für ABEK Filterelemente

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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


Contact

Institut für Luft- und Kältetechnik - Gemeinnützige Gesellschaft mbH
Bertolt-Brecht-Allee 20, 01309 Dresden


Secretary to the Management

+49-351-4081-520

+49-351-4081-525

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