L'incorporation de MCP dans les matériaux d'un bâtiment permet des économies d'énergie

L'incorporation de matériaux à changement de phase (MCP) dans les matériaux d'un bâtiment permet de réduire sensiblement la consommation d'énergie pour le refroidissement du bâtiment.
During CLIMA2013, a team from the Blida University in Algeria presented results of an investigation on the effect of phase-change material (PCM) integration in building components in mild climates.
The incorporation of PCMs in building materials is particularly interesting since it permits thermal storage to become a part of the building structure and is completely passive.
The PCMs were found to have interesting performances even in mild climates characterized by low day/night temperature swings, which make night time ventilation less efficient for discharging the PCM.

Even if large quantities of PCM are necessary, a reduction of 20% in cooling energy consumption can be obtained with reasonable thickness of PCM wallboards.
The best position for PCMs is found to be on surfaces that undergo large temperature variations (connected to the outdoor air for example). The ceiling for example presents the best compromise between energy reduction and PCM quantity used. A local economic efficiency analysis should confirm the profitability.

Incorporating PCMs in buildings material for energy conservation, EH Bouguerra et al.

The full article can be downloaded via the IIR’s Fridoc database (free for IIR members within the framework of their quota of free downloads):http://www.iifiir.org/clientBookline/service/reference.asp?INSTANCE=EXPLOITATION&OUTPUT=PORTAL&DOCID=IFD_REFDOC_0009828&DOCBASE=IFD_REFDOC_EN&SETLANGUAGE=EN
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