| Issue |
MATEC Web Conf.
Volume 379, 2023
18e Congrès de la Société Française de Génie des Procédés (SFGP2022)
|
|
|---|---|---|
| Article Number | 04004 | |
| Number of page(s) | 9 | |
| Section | Transition énergétique / Energy Transition | |
| DOI | https://doi.org/10.1051/matecconf/202337904004 | |
| Published online | 12 May 2023 | |
Comparative experiments on a new CaCl2-based composite material and zeolite 13X inside a thermochemical heat storage reactor
Étude expérimentale et comparative d’un nouveau composite à base de CaCl2 et de la zéolithe 13X au sein d’un réacteur de stockage thermochimique
LOCIE UMR 5271, Université Savoie Mont-Blanc, CNRS, 73370 Le Bourget-du-Lac, France
Thermal energy storage includes sensible, latent and thermochemical heat storage. The latter is particularly interesting because the heat is stored as a chemical potential, which reduces heat loss in long-term applications. The viability of thermochemical storage systems strongly depends on the energy density of the storage material. The development of high energy density materials is thus essential to achieve compact systems suitable for a wide range of applications.
A new sol-gel composite material is investigated here: it is composed of CaCl2 dispersed within a matrix of silica and PEG-600 polymer. Composite materials containing CaCl2 have the highest storage capacities and seem to be the most promising candidates. The aim is to develop a composite that is both efficient and stable. The suitability of the material depends on the ability of the PEG to stabilise calcium chloride and prevent its deliquescence and leakage. The experimental results are compared to those obtained using zeolite 13X, which is a reference adsorbent material.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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