Stephan Höhlein
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View article: Analysis of the discharging process of latent heat thermal energy storage units by means of normalized power parameters
Analysis of the discharging process of latent heat thermal energy storage units by means of normalized power parameters Open
Many efforts are being made to mitigate the main disadvantage of most phase change materials – their low thermal conductivities – in order to deliver latent heat energy storage systems (LHESS) with adequate performance. However, the effect…
View article: Summary of Work On development and characterization of improved Materials
Summary of Work On development and characterization of improved Materials Open
As the material development is done at different institution the objective of the work was to collect the materials which are under research and development to get an overview on the most relevant properties of these materials and applicat…
View article: Experimental Devices to Investigate the Long-Term Stability of Phase Change Materials under Application Conditions
Experimental Devices to Investigate the Long-Term Stability of Phase Change Materials under Application Conditions Open
An important prerequisite to select a reliable phase change material (PCM) for thermal energy storage applications is to test it under application conditions. In the case of solid–liquid PCM, a large amount of thermal energy can be stored …
View article: Review of Thermophysical Property Data of Octadecane for Phase-Change Studies
Review of Thermophysical Property Data of Octadecane for Phase-Change Studies Open
In this work we derive temperature-dependent functions for the most important material properties needed for phase change studies with octadecane. Over 80 references are reviewed in which at least one thermophysical property of octadecane …
View article: Macro-Encapsulation of Inorganic Phase-Change Materials (PCM) in Metal Capsules
Macro-Encapsulation of Inorganic Phase-Change Materials (PCM) in Metal Capsules Open
The design of phase-change material (PCM)-based thermal energy storage (TES) systems is challenging since a lot of PCMs have low thermal conductivities and a considerable volume change during phase-change. The low thermal conductivity rest…
View article: Intercomparative tests on viscosity measurements of phase change materials
Intercomparative tests on viscosity measurements of phase change materials Open
View article: An implicit algorithm for melting and settling of phase change material inside macrocapsules
An implicit algorithm for melting and settling of phase change material inside macrocapsules Open
• An implicit solver for unfixed melting of PCM is presented. • The implicit solver is far more stable than a previously developed explicit one. • Experiments in a cubic cavity are performed to validate the numerical model. • The numerical…
View article: Thermophysical Characterization of MgCl2·6H2O, Xylitol and Erythritol as Phase Change Materials (PCM) for Latent Heat Thermal Energy Storage (LHTES)
Thermophysical Characterization of MgCl2·6H2O, Xylitol and Erythritol as Phase Change Materials (PCM) for Latent Heat Thermal Energy Storage (LHTES) Open
The application range of existing real scale mobile thermal storage units with phase change materials (PCM) is restricted by the low phase change temperature of 58 ∘ C for sodium acetate trihydrate, which is a commonly used storage materia…
View article: IEA SHC Task 42 / ECES Annex 29 – Working Group B: Applications of Compact Thermal Energy Storage
IEA SHC Task 42 / ECES Annex 29 – Working Group B: Applications of Compact Thermal Energy Storage Open