Abstract
Recent research has concentrated on the use of different substances in glazing windows in order to decrease heat transmission through building apertures. In the present work, the thermal performance of a double-glazed window unit coupled with a phase change material (PCM) was examined experimentally and compared to that of a normal double-glazed window. The technical grade paraffin was used as a PCM in a 12 mm gap between double-glazing unit and the investigation was conducted for a whole representative day. The indoor thermal environment, inner glass temperature, energy consumption through glazed window were assessed along with the transmittance of the glass containing PCM. The results supported that the transmittance was good enough during the day time to allow sufficient light inside the room. Further, the PCM curtailed the temperature fluctuation, inner glass temperature and energy consumption through the window significantly.
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