DUQUESNE, Marie; MAILHÉ, Clément; DOPPIU, Stefania; DAUVERGNE, Jean-Luc; SANTOS-MORENO, Sergio; GODIN, Alexandre; FLEURY, Guillaume; ROUAULT, Fabien; PALOMO DEL BARRIO, Elena

doi:10.3390/ma14164707

UNIROUEN - UFR Santé [UNIROUEN UFR Santé]
Institut de Mécanique et d'Ingénierie [I2M]

MAILHÉ, Clément
Institut de Mécanique et d'Ingénierie [I2M]

DOPPIU, Stefania

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Ce document a été publié dans

Materials. 2021-08-20, vol. 14, n° 16, p. 4707

Résumé en anglais

This work aims to characterize phase change materials (PCM) for thermal energy storage in buildings (thermal comfort). Fatty acids, biobased organic PCM, are attractive candidates for integration into active or passive storage systems for targeted application. Three pure fatty acids (capric, myristic and palmitic acids) and two eutectic mixtures (capric-myristic and capric-palmitic acids) are studied in this paper. Although the main storage properties of pure fatty acids have already been investigated and reported in the literature, the information available on the eutectic mixtures is very limited (only melting temperature and enthalpy). This paper presents a complete experimental characterization of these pure and mixed fatty acids, including measurements of their main thermophysical properties (melting temperature and enthalpy, specific heats and densities in solid and liquid states, thermal conductivity, thermal diffusivity as well as viscosity) and the properties of interest regarding the system integrating the PCM (energy density, volume expansion). The storage performances of the studied mixtures are also compared to those of most commonly used PCM (salt hydrates and paraffins).< Réduire

Mots clés en anglais

thermal energy storage

biobased phase change materials

fatty acids

thermophysical characterization

URI

https://oskar-bordeaux.fr/handle/20.500.12278/124189

DOI

http://dx.doi.org/10.3390/ma14164707

Unités de recherche

Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295

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Characterization of Fatty Acids as Biobased Organic Materials for Latent Heat Storage

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Mots clés en anglais

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