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Title:
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Comparison of phase change slurries: Physicochemical and thermal properties
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Author:
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Giró Paloma, Jessica; Barreneche Güerisoli, Camila; Martínez, Mònica; Šumiga, Boštjan; Cabeza, Luisa F.; Fernández Renna, Ana Inés
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Notes:
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Phase change slurries (PCS) consist on a carrier fluid binary system, where water is mostly used as
continuous phase and micro-encapsulated phase change materials (MPCM) are used as dispersed phase.
PCS are used in Thermal Energy Storage (TES) for building applications, combining the latent heat capacity
of the MPCM with the sensible heat capacity of the carrier fluid, and at the same time giving the
PCM pumpable properties. In this study, two PCS samples are compared and characterized, the commercial
Micronal® DS 5007 X from BASF and a laboratory made PCS28. Thereby, in this paper thermal
stability is studied by using thermogravimetrical analysis (TGA) and the main components of the MPCM
have been studied using Fourier transformed infrared spectroscopy (FT-IR). Moreover, TGA coupled with
FT-IR is used to study deeply the thermal decompositions of the PCS microcapsules and products derived
thereof. Finally, differential scanning calorimetry (DSC) is performed to study the melting enthalpy and
the melting temperature range of the phase change material (PCM). This paper concludes that both types
of PCS have good potential from thermal energy storage purposes such as solar space heating
applications.
The work is partially funded by the Spanish government (ENE2011-28269-C03-02 and ENE2011-22722). The authors would like to thank the Catalan Government for the quality accreditation given to their research group GREA (2014 SGR 123) and research group DIOPMA (2014 SGR 1543). The research leading to these results has received funding from the European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° PIRSES-GA-2013-610692 (INNOSTORAGE). |
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Subject(s):
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-Phase change materials
-Microencapsulated phase change material
-Phase change slurry
-Thermophysical properties |
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Rights:
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(c) Elsevier, 2015
info:eu-repo/semantics/restrictedAccess |
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Document type:
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article
publishedVersion |
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Published by:
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Elsevier
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