Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) Institut für Technische Thermodynamik

Pfaffenwaldring 38-40, 70569 Stuttgart
Telephone +49 711 6862-359
Fax +49 711 6862-712

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Energy Storage Europe 2019 hall map (Hall 8b): stand B16

Fairground map

Energy Storage Europe 2019 fairground map: Hall 8b

Our range of products

Product categories

  • 01  Mechanical Energy Storage
  • 01.01  Compressed Air Energy Storage (CAES)

Compressed Air Energy Storage (CAES)

Our products

Product category: Compressed Air Energy Storage (CAES)

Thermal Process Technology

With about 50 members of staff, the department of Thermal Process Technology is concerned with energy storage, thermal management and heat exchange topics. These topics are of importance to all fields of energy use and energy supply.
Apart from applications in the fields of industrial process heat, combined heat and power and fossil power plants, thermal energy storages are developed and qualified for solar thermal power plants. The significance of energy storage for the power plant sector is reinforced by the demands on net stability with an increasing share of renewable electricity production and by the recent developments in the field of solar thermal power plants, to cover the increasing electricity demand in central Europe. Innovative storage concepts for a temperature range from 100 to 1000 °C are being developed and realized in the department. The technologies under development cover sensible heat storage based on liquid and solid materials, latent heat storage and thermochemical systems.

The increasing urgency to reduce the primary energy consumption in the commercial and industrial area requires the exploitation of to-date unused waste heat. For the purpose of high temperature applications with gaseous heat transfer fluids in power plants and industrial processes, high temperature heat exchangers based on ceramic materials are being developed. Thereby, the focus lies on thermal and thermo-mechanical design issues, which are also validated experimentally.
In the area of alternative fuels, the focus is on liquid (biogenic) hydrocarbons. The thermochemical conversion processes for the production of hydrogen for decentralized power or mobile applications and decentralized stationary electricity production are being researched, as well as gas clean-up processes for decentralized power production from renewable biomass. The relevance of storing surplus electricity in the form of liquid hydrocarbons is investigated by process simulation and techno-economic assessment.

The key topics of the department are covered by 4 research areas:

  • Thermal Energy Storage – Development of high temperature heat storage for solar thermal power plants and industrial process heat applications; the emphasis lies on applications with liquid or two-phase heat transfer fluids
  • Thermochemical Systems – Investigation of gas-solid reactions to be used in thermochemical heat storages with very high storage and heat flux densities, for heat transformation and as hydrogen storage
  • Thermal Power Plant Components – Development of high temperature heat storage and ceramic heat exchangers for gaseous heat transfer fluids to increase the energy efficiency of power plant and process technologies
  • Alternative Fuels – Investigation and assessment of processes for hydrogen production from biogenic primary fuels and for production of liquid hydrocarbons to store surplus electricity from renewable sources


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About us

Company details

Institute of Engineering Thermodynamics

The Institute of Engineering Thermodynamics at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt -DLR) in Stuttgart, with further research facilities in Cologne, Ulm, Oldenburg and Hamburg, does research in the field of efficient energy storage systems that conserve natural resources, and next generation energy conversion technologies with a staff of 180 scientific and technical employees, engineers and doctoral candidates. The spectrum of activities ranges from theoretical studies to laboratory work for basic research and to the operation of pilot plants. These experimental and theoretical studies are accompanied by systems analysis studies to analyse the associated technological, environmental and economic potential and situate it in a larger overall context of the energy economy by means of scenarios.
A tight network with the University of Stuttgart -especially with the Institute of Energy Storage- and with the Helmholtz Institute Ulm at the University of Ulm is existing.

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