Abstract
Closing the gap between supply and demand of energy is one of the biggest challenges of our era. In this aspect, thermal energy storage via borehole thermal energy storage (BTES) and sensible heat storage systems has recently emerged as a practical and encouraging alternative in satisfying the energy requirements of household and industrial applications. The majority of these heat energy storage systems are designed as part of the foundation or sub-structure of buildings with load bearing capabilities, hence their mechanical stability should be carefully studied prior to the design and operation phases of the heat storage system. In this study, the cyclic mechanical performance of a commercial cement-based porous heat storage material is analyzed under different amplitudes of cyclic loading and medium temperatures using a recently developed cyclic thermo-mechanical triaxial device. The results show a significant dependence of the cyclic mechanical behavior of the material, such as in the form of cyclic axial and accumulated plastic strains, on the different thermo-mechanical loading schemes.
Highlights
The field of energy geotechnics has provided many practical solutions in satisfying the worldwide energy demand
The cyclic mechanical performance of a commercial cement-based porous heat storage material is analyzed under different amplitudes of cyclic loading and medium temperatures using a recently developed cyclic thermo-mechanical triaxial device
The results show a significant dependence of the cyclic mechanical behavior of the material, such as in the form of cyclic axial and accumulated plastic strains, on the different thermo-mechanical loading schemes
Summary
The field of energy geotechnics has provided many practical solutions in satisfying the worldwide energy demand One such solution is via clean and renewable energy schemes, such as solid sensible heat storage systems (e.g. cemented media) or seasonal thermal energy storage via borehole thermal energy storage (BTES) systems (e.g. soils). In both applications, heat or cold from solar collectors or other forms of energy is collected, stored for long periods and used for future industrial or domestic purposes [1, 2]. The research was conducted as part of the work of project IGLU [4], which aims at developing solar powered thermal energy storage systems for household applications (Fig. 1)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
