Scanning elctron micrograph (SEM) of Phase Change Materials PCM

The scanning electron micrograph gives a qualitative impression of the size distribution of the paraffin microcapsules. Large capsules (app. 5 µm) and many small capsules can be seen. Whereas the number of small capsules is much greater than that of large ones, their volume percentage is small.

Phase-change slurry storage

Phase-change slurries consist of a phase-change material and a carrier liquid. A dispersion is formed which remains fluid, independent of the physical state of the phase-change material. Its viscosity depends on the concentration of dispersed PCM.

Thermal Storage for Buildings

Our Fields of Work include:


Latent Heat Storage


Cold Storage

Most of the final energy in buildings is consumed as heat or cold. Marked fluctuations in the demand occur on a daily, weekly and even seasonal scale, which can lead to load peaks that are too high to be met by the heating or cooling systems. Additionally, the demand profile often does not match the availability of the renewable energy supply. Such mismatches often are compensated with an over-dimensioned supply system and thus inefficient operation. On the other hand, the share of renewables in the supply remains low.

With the use of thermal storage systems, cold and heat provision can be shifted through time thus decoupling the time of supply and demand. Storage systems are an important component when dimensioning supply systems which use renewable energy.

At Fraunhofer ISE we develop and optimize chillers and cooling systems for buildings and industrial applications. Our work extends from the development of new materials and of storage media with higher energy capacity through to optimizing storage efficiency and the operating efficiency of storage systems.

Contact Press / Media

Stefan Gschwander

Thermal Storage for Buildings

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5494

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Current publications - Thermal Storage for Buildings


YearTitle/AuthorDocument Type
2016Assessment of thermodynamic equilibrium properties of salt hydrates for heat transformation applications at different temperature levels
Laurenz, E.; Füldner, G.; Schnabel, L.
2016Nucleation of PCMs in confined geometries
Hagelstein, G.; Gschwander, S.
Conference Paper
2016Numerical study on load shifting strategies for the heating and cooling of an office building considering variable grid conditions
Klein, K.; Kalz, D.; Herkel, S.
Conference Paper
2015High-yield, fluoride-free and large-scale synthesis of MIL-101(Cr)
Zhao, T.; Jeremias, F.; Boldog, I.; Nguyen, B.; Henninger, S.K.; Janiak, C.
Journal Article
2015Unconventional experimental technologies available for phase change materials (PCM) characterization. Pt.1. Thermophysical properties
Cabeza, L.F.; Barreneche, C.; Martorell, I.; Miro, L.; Sari-Bey, S.; Fois, M.; Paksoy, H.O.; Sahan, N.; Weber, R.; Constantinescu, M.; Anghel, E.M.; Malikova, M.; Krupa, I.; Delgado, M.; Dolado, P.; Furmanski, P.; Jaworski, M.; Haussmann, T.; Gschwander, S.; Fernandez, A.I.
Journal Article
2015Unconventional experimental technologies used for phase change materials (PCM) characterization. Pt.2 - morphological and structural characterization, physico-chemical stability and mechanical properties
Fernandez, A.I.; Sole, A.; Giro-Paloma, J.; Martinez, M.; Hadjieva, M.; Boudenne, A.; Constantinescu, M.; Anghel, E.M.; Malikova, M.; Krupa, I.; Penalosa, C.; Lazaro, A.; Paksoy, H.O.; Cellat, K.; Vecstaudza, J.; Bajare, D.; Sumiga, B.; Boh, B.; Haussmann, T.; Gschwander, S.; Weber, R.; Furmanski, P.; Jaworski, M.; Cabeza, L.F.
Journal Article
2014Advancement of sorption-based heat transformation by a metal coating of highly-stable, hydrophilic aluminium fumarate MOF
Jeremias, F.; Fröhlich, D.; Janiak, C.; Henninger, S.K.
Journal Article
2014Energiesystem Deutschland 2050: Vortrag gehalten auf der Bauphysik-Tagung, 04. November 2014, Düsseldorf
Henning, H.,; Palzer, A.
2014Latentwärmespeicher in zentralen Lüftungsanlagen
Haussmann, T.; Heuer, A.; Bauer, S.; Mertes, F.
Conference Paper
2014Multicycle water vapour stability of microporous breathing MOF aluminium isophthalate CAU-10-H
Fröhlich, D.; Henninger, S.K.; Janiak, C.
Journal Article
2014Optimierter Betrieb von KWKK-Systemen mit Speichern - Case Study am Beispiel einer Liegenschaft
Klein, K.; Wahl, A.; Huang, M.; Sonntag, M.; Kalz, D.; Herkel, S.
Conference Paper
2014Stability of sugar alcohols as PCM for thermal energy storage
Solé, A.; Neumann, H.; Niedermaier, S.; Martorell, I.; Schossig, P.; Cabeza, L.F.
Journal Article
2014Water and methanol adsorption on MOFs for cycling heat transformation processes
Jeremias, F.; Fröhlich, D.; Janiak, C.; Henninger, S.K.
Journal Article
2013Application oriented investigation of PCS on thermal and hydraulic properties: Paper presented at the 2nd International Conference on Sustainable Energy Storage, IC-SES 2013; June 19-21, Trintiy College, Dublin, Ireland
Rudolph, J.; Vorbeck, L.; Gschwander, S.; Haussmann, T.; Neumann, H.; Schossig, P.
2013Intercomparative tests on phase change materials characterisation with differential scanning calorimeter
Lazaro, A.; Peñalosa, C.; Solé, A.; Diarce, G.; Haussmann, T.; Fois, M.; Zalba, B.; Gshwander, S.; Cabeza, L.F.
Journal Article
2013Pilot application of phase change slurry in a 5 m3 storage
Vorbeck, L.; Gschwander, S.; Thiel, P.; Lüdemann, B.; Schossig, P.
Journal Article
This publication list has been generated from the publication database Fraunhofer-Publica.