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Título:
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Corrosion of metal containers for use in PCM energy storage
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Autor/a:
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Ferrer, Gerard; Solé, Aran; Barreneche Güerisoli, Camila; Martorell, Ingrid; Cabeza, Luisa F.
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Notas:
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In recent years, thermal energy storage (TES) systems using phase change materials (PCM) have been
widely studied and developed to be applied as solar energy storage units for residential heating and
cooling. These systems performance is based on the latent heat due to PCM phase change, a high energy
density that can be stored or released depending on the needs. PCM are normally encapsulated in
containers, hence the compatibility of the container material with the PCM has to be considered in order
to design a resistant container. Therefore, the main aim of this paper is to study the corrosion effects
when putting in contact five selected metals (aluminium, copper, carbon steel, stainless steel 304 and
stainless steel 316) with four different PCM (one inorganic mixture, one ester and two fatty acid eutectics)
to be used in comfort building applications. Results showed corrosion on aluminium specimens.
Hence caution must be taken when selecting it as an inorganic salt container. Despite copper has a
corrosion rate range of 6e10 mg/cm2 yr in the two fatty acid formulations tested, it could be used as
container. Stainless steel 316 and stainless steel 304 showed great corrosion resistance (0e1 mg/cm2 yr)
and its use would totally be recommended with any of the studied PCM.
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 groups GREA (2014 SGR 123) and research group DIOPMA (2014 SGR 1543). Aran Sole would like to thank the Departament d'Universitats, Recerca i Societat de la Informacio de la Generalitat de Catalunya for her research fellowship. 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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Materia(s):
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-Solar energy
-Thermal energy storage
-Comfort building applications
-Phase change materials (PCM) |
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Derechos:
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cc-by-nc-nd, (c) Elsevier, 2015
http://creativecommons.org/licenses/by-nc-nd/4.0/
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Tipo de documento:
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article
acceptedVersion |
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Editor:
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Elsevier
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Compartir:
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