Print Email Facebook Twitter Numerical analysis of mechanical reliability of multi-coated phase change materials Title Numerical analysis of mechanical reliability of multi-coated phase change materials Author Forner-Escrig, Josep (Universitat Jaume I) Navarrete, Nuria (Universitat Jaume I) Palma, Roberto (Universidad de Granada) La Zara, D. (TU Delft ChemE/Product and Process Engineering) Goulas, A. (TU Delft ChemE/Product and Process Engineering) Valdesueiro, David (Delft IMP B.V.) van Ommen, J.R. (TU Delft ChemE/Product and Process Engineering) Hernández, Leonor (Universitat Jaume I) Mondragón, Rosa (Universitat Jaume I) Date 2021 Abstract Nanoencapsulated phase change materials (nePCMs) are nowadays under research for thermal energy storage purposes. NePCMs are composed of a phase change core surrounded by a shell that confines the core when molten. One of the main concerns of nePCMs when subjected to thermal processes is the mechanical failure of the passivation shell initially present in commercial metallic nanoparticles. In order to overcome this issue, multi-coated nePCMs, based on the synthesis of an additional coating by atomic layer deposition, appear to be as a candidate solution. With the objective of studying the influence of the composition and thickness of the additional nePCM shells on their probability of failure, a numerical tool combining a thermomechanical finite element model with phase change and Monte Carlo algorithms is developed. This tool also allows including the uncertainty of material and geometrical properties into the numerical analysis to account for their influence in the mechanical performance of nePCMs. In the present work, the mechanical reliability of SiO2 and Al2O3 coatings on Sn@SnOx nanoparticles is assessed by considering both deterministic and probabilistic failure criteria and Al2O3 coatings appear to have a better mechanical performance than their SiO2 counterparts. To reference this document use: http://resolver.tudelft.nl/uuid:5bc1726c-8854-4917-a401-8bb66a1f24f9 DOI https://doi.org/10.1051/e3sconf/202132102019 ISSN 2555-0403 Source E3S Web of Conferences, 321 Event 13th International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2021, 2021-05-18 → 2021-05-19, Paris, France Part of collection Institutional Repository Document type journal article Rights © 2021 Josep Forner-Escrig, Nuria Navarrete, Roberto Palma, D. La Zara, A. Goulas, David Valdesueiro, J.R. van Ommen, Leonor Hernández, Rosa Mondragón Files PDF e3sconf_icchmt2021_02019.pdf 448.94 KB Close viewer /islandora/object/uuid:5bc1726c-8854-4917-a401-8bb66a1f24f9/datastream/OBJ/view