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Building integration of PCM for natural cooling of buildings

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Fecha de publicación
2013
Autor/a
Álvarez, Servando
Cabeza, Luisa F.
Ruiz-Pardo, Álvaro
Castell, Albert
Tenorio, José Antonio
Cita recomendada
Álvarez, Servando; Cabeza, Luisa F.; Ruiz-Pardo, Álvaro; Castell, Albert; Tenorio, José Antonio; . (2013) . Building integration of PCM for natural cooling of buildings. Applied Energy, 2013, vol. 109, p. 514-522. https://doi.org/10.1016/j.apenergy.2013.01.080.
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Resumen
The use of night cooling ventilation in addition of phase change materials (PCMs) is a very powerful strategy for reducing the cooling demand of buildings. Nevertheless, there are inherent drawbacks in the way things have been doing so far: (a) The limited area of contact between PCM and the air; (b) the very low convective heat transfer coefficients which prevents the use of significant amounts of PCM and (c) the very low utilization factor of the cool stored due to the large phase shift between the time when cool is stored and time when it is required by the building. In this paper, we present innovative solutions using PCM to overcome the above situation. Compared with existing solutions, innovative solutions proposed, increase the contact area between PCM and air by a factor of approximately 3.6, increase the convective heat transfer coefficient significantly, and improve the utilization factor due to the inclusion of active control systems which allow the cold stored be actually used when required.
URI
http://hdl.handle.net/10459.1/47895
DOI
https://doi.org/10.1016/j.apenergy.2013.01.080
Es parte de
Applied Energy, 2013, vol. 109, p. 514-522
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