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Title:
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Corrosion of metal and metal alloy containers in contact with phase change materials (PCM) for potential heating and cooling applications
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Author:
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Moreno Argilés, Pere; Miró, Laia; Barreneche Güerisoli, Camila; Solé Cutrona, Cristian; Martorell, Ingrid; Cabeza, Luisa F.
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Notes:
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Thermal energy storage (TES) using phase change materials (PCM) can be used for load shaving or peak
load shifting when coupled to a heating, ventilation, and air-conditioning (HVAC) system such as heat
pump. In these systems the PCM is embedded in packages or used in bulk, so the compatibility of the
encapsulation materials and the PCM is a key factor to ensure long operational life of the system.
Although corrosion caused by salts is known from the chemical industry, when these salts are used as
PCM no corrosion data is available, since the salts are used without being in water solution. Producing
new corrosion data is essential for PCM utilisation in new applications. In this study the corrosion rate
of two metals and two metal alloys when they are in contact with different salt hydrate PCM is evaluated;
in total eleven PCM, being four of them commercial PCM, are tested. Since they are PCM to be used for
heating and cooling applications they are classified in two different groups to present the corrosion study.
Results present the recommendation of using each PCM with the different metals and metal alloys
according to the obtained corrosion rate and visual observation of the samples.
The work is partially funded by the Spanish Government (ENE2011-22722 and ENE2011-28269-C03-02). |
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Subject(s):
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-Thermal energy storage
-Phase change materials
-HVAC |
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Rights:
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(c) Elsevier, 2014
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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