Abstract
This paper presents the results of simulations of thermal stresses occurring in a thermal energy storage unit with a phase-change material. The simulations have been performed for a smooth tube and two different airflow velocities. The thermal stresses occurring in the thermal energy storage unit are caused by the heating of the material of the tubes and a change in the volume of the phase-change material. It has been shown that the greatest thermal stresses occur during the initial heating of the thermal energy storage unit, while the location of potential damage depends on whether the stresses come from the temperature gradient in the material of the tube or from the expansion of the phase-change material.
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Smykowski, D., Tietze, T., Szulc, P., Wójs, K. (2019). Numerical Modelling of Thermal and Mechanical Properties of Construction Elements in a Heat Storage Unit with Phase Change. In: Rusiński, E., Pietrusiak, D. (eds) Proceedings of the 14th International Scientific Conference: Computer Aided Engineering. CAE 2018. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-04975-1_78
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DOI: https://doi.org/10.1007/978-3-030-04975-1_78
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