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Title:
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Thermal loads inside buildings with phase change materials: Experimental results
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Author:
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Navarro Farré, Lidia; Gracia Cuesta, Alvaro de; Solé Cutrona, Cristian; Castell, Albert; Cabeza, Luisa F.
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Notes:
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Nowadays, European policies are promoting low energy buildings because of the high amount of energy consumption
of the building sector. Phase change materials (PCM) have been studied in building implementation as a passive
system to reduce the energy demand. Based in the experience obtained in the experimental set-up of Puigverd de
Lleida (Spain), this paper pretends to analyze experimentally the PCM performance in a scenario with internal
thermal gains. The experiments were done in three different cubicles with the same internal dimensions. The
selection of the constructive systems used in these three cubicles allows the authors to evaluate the impact of using
PCM in a typical Mediterranean building. A domestic heat pump for summer and an electric radiator for winter were
installed to control the internal temperature of the cubicles. The results of summer period experiments show that the
PCM cubicle stored the heat produced by the internal loads limiting the heat dissipation to the outer environment.
Therefore, the energy consumed by the HVAC system of the PCM cubicle during the cooling period is higher than
that of the other cubicles that dissipated the thermal loads according to the thermal resistance of their envelopes.
Therefore, the PCM selection should take into account not only the comfort temperature but also the activity and
functionality of the building.
The work partially funded by the Spanish government (ENE2011-28269-C03-01) and the European
Union (COST Action COST TU0802). The authors would like to thank the Catalan Government for the
quality accreditation given to their research group
(2009 SGR 534) and the city hall of Puigverd de
Lleida. |
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Subject(s):
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-Thermal energy storage
-Phase change material
-Buildings |
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Rights:
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cc-by-nc-nd (c) Lidia Navarro et al., 2012
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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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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Share:
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