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Focus of the funding initiative

Storing heat

In the various research networks, researchers are working on improving the components and structure of known technologies, for example, using new and less costly materials. One particular focus is on latent heat storage and sorption storage systems. The main application areas are storage for conventional and solar thermal power plants, for current-regulated CHP plants, seasonal storage for buildings, and storage facilities that simplify the management of heating networks.

short-term storage

Thermal Storage | BMWi
Salthydrates 14.3.2016

Cooling of buildings using new salthydrates

In the project PC-Cools_V two new phase change materials (PCM) on a salthydrate basis with a narrow melting range around 21°C and around 15°C are developed. The latter was intended for the implementation in central cold storages whereas the PCM melting at 21°C was designed for a decentral, room integrated storage application, especially cooling ceilings. ... more


Thermal Storage | BMWi
Industrial waste heat utilisation 12.9.2017

Foundry using waste heat of the furnace

In energy-intensive industries, e.g. foundry industry or cement industry, the use of waste heat for example as process or space heating energy reduces the consumption of primary energy.  In the Project “IAST” researchers are testing an energy storage system for discontinuous industrial waste heat of a furnace at a foundry. The implementation and commissioning is expected to start at the end of 2014. ... more


Thermal Storage | BMWi
Latent heat storage based on salt 18.7.2016

„SALSA“ makes steam and waste heat useable

The Fraunhofer Institute for Solar Energy Systems ISE, Novatec Solar and Köllemann are developed a salt-based latent heat storage called SALSA. This is to used for waste heat recovery in industrial processes. In the end of 2016, the storage was integrated and tested in the southern Spanish power plant PE1. ... more


Thermal Storage | BMBF
Thermochemical solid heat accumulators 1.2.2016

Heat storage in smallest volume

Thermochemical heat storage can achieve low cost because of its higher specific energy density as compared with conventional heat storage materials. However, the thermal conductivity of the material is limited. Therefore, scientists at the Fraunhofer UMSICHT developed new thermochemical storage materials. The researchers intend to increase the thermal conductivity of solids, specifically through the addition of special additives. ... more


Physical Storage | BMWi
Phase-change material (PCM) 11.4.2017

Increase dynamism with three-dimensional wire mesh

To equip modular storage units for a temperature range of 150 to 350 degrees Celsius and achieve high energy and power densities at the same time, is the declared aim of the researchers in the MOSPEDRA-project. The scientists first need to increase the dynamics of the memory modules. They want to achieve with a new metallic thermal wire mesh, which is embedded in a phase-change material. ... more


Thermal Storage | BMWi
Latent heat storage 12.4.2017

Pourable PCM for high temperatures

Dresden researchers develop small pourable and pumpable heat storage capsules for the temperature range from 130 to 350 ° C. The hollow spheres are made from metal alloys. Depending on the application, the diameters vary from 2 to 6 mm. The capsules contain salt mixtures for latent heat storage. ... more


Physical Storage | BMWi
Latent heat storage 1.10.2015

Waste heat used for production of precast concrete

Researchers develop new components in the project ENBELAT. To use the hydration heat they provide concrete precast molds with a heat recovery and save the heat in a latent heat storage. This increases the quality and helps the energy consumption to be reduced 45 percent. ... more


Physical Storage | BMWi
PCM storage 12.4.2017

Cheaper slurries for cooling processes

In order to reduce the cost of PCM storages, scientists develop new slurries and materials for cold storages. The aim of the project KOLAN is to develop an emulsion with a very high heat capacity. At a temperature difference of 6 Kelvin it should store about four times more heat than water. ... more


Thermal Storage | BMWi
Latent heat storage 1.7.2016

Thermal characterization of PCM

Scientists from the ZAE Bayern develop measurement methods to characterize PCM materials in application-oriented samples. The project PCM Metro aims to a better understanding of quantity-dependent phenomena compared to standard laboratory procedures. ... more


Electrical Storage | BMWi
Power-heat systems 12.4.2017

Network storage with hybrid photovoltaic system

Researchers develop new strategies for the operation of hybrid photovoltaic systems in residential buildings and small businesses. For this purpose, the scientists optimize the operation management by simulations and laboratory measurements in the project INE-VES. The optimized operations management will increase the benefit of the system for the power grid, as well as for the owner. ... more


Supported by: The Federal Government on the basis of a decision by the German Bundestag

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