DLR Portal
Home|Sitemap|Contact Imprint and terms of use Privacy Cookies & Tracking |Deutsch
You are here: Home:Research:Thermal Energy Storage:Thermochemical Systems
Advanced Search
About us
Latest News
Research
Thermal Energy Storage
Thermal Power Plant Components
Thermal Systems for Fluids
Thermal Systems with Phase Change
Thermochemical Systems
Electrochemical Energy Storage
Energy Storage Simulation
Energy Storage Integration
Projects
Facilities
Publications
Job Offers
Print

Thermochemical Systems



Autoplay
Show Info
Hide Info
Information
Close
Fullscreen
Normal
back
next
{{index}}/{{count}}
Tip:
Use <Escape>, to leave fullscreen.
  • Test stand CWS - Heat storage in lime stone
    • Information
    • 0.19 MB
    • Share:    

    Immobile thermochemical heat accumulator on a pilot plant scale: As part of the BMWi project CWS, a thermochemical heat accumulator on a pilot plant scale was set up at DLR in Cologne. The reactor has a thermal power of up to 10 kW and a capacity of 8 kWh of chemically stored energy (corresponds to approx. 22 kg Ca(OH)2).

    Credit: DLR..

  • Hydrogen storage with metal hydrides
    • Information
    • 0.3 MB
    • Share:    

    Credit: DLR..

  • Test facility THETA
    • Information
    • Share:    

    ...

    Credit: DLR..

The research area „Thermochemical Systems“ focuses on reversible gas-solid reactions and their application in the fields of energy storage and conversion. Different reaction systems utilizing hydrogen, oxygen or water vapor as gaseous reactants are investigated for applications in industrial processes, solar power plants as well as for mobile applications. The main focus of the research area is on the realization of innovative storage and reactor concepts and their demonstration in laboratory or pilot plant scale.

Research areas and current projects:

Thermochemical Storage of Heat

Since the thermal energy is chemically stored as heat of reaction, this storage technology offers several advantages such as:

  • high storage density
  • loss-free long-term storage
  • low-cost storage materials

Depending on the reaction system, the thermochemical storage can be used in a wide temperature range - starting from below room temperature up to 1000 °C.

Heat transformation

Due to the pressure dependency of gas-solid reactions, thermochemical systems can also be used to transform heat. In this case the temperature of the discharging process can be higher than the temperature necessary for the charging process which is especially interesting for the thermal upgrade of industrial waste heat.

Solid State Hydrogen Storage

The principle of solid state hydrogen storage is based on a chemical bonding between the hydrogen gas and a solid material. Therefore, solid state hydrogen offers the possibility to safely store hydrogen at low pressures with high storage densities. Depending on the storage material, the chemical reaction can also be used for other applications such as thermal energy storage or gas separation.

Automotive thermal management

Gas-solid reactions also offer the possibility to separate the reactants easily. Therefore, the thermochemical storage is principally loss-free and its heat release controllable. In combination with high storage and power densities, thermochemical systems can therefore offer interesting applications in the context of automotive thermal management.

Fields of activity:

  • High-performance thermochemical reactors
  • Lime storage for seasonal balancing

Ihr Kontakt
Dr.-Ing. Marc Linder
Research Area Manager Thermochemical Systems

German Aerospace Center

Institute of Engineering Thermodynamics
, Thermal Process Technology
Stuttgart

Tel.: +49 711 6862-8034

Fax: +49 711 6862-632

Publications

Literature of the research area Thermochemical Systems


Publications to be found on DLR ELIB
Read more
Copyright © 2023 German Aerospace Center (DLR). All rights reserved.