Keywords
Thermal comfort
Phase change material
Social housing
Energyplus
How to Cite
Abstract
Phase Change Materials (PCM) can store or release thermal energy through temperature fluctuations, which can stabilize internal temperature fluctuations, improving the efficiency of buildings. Several studies assess energy consumption; however, issues that explore the limitations of PCM as a passive system to ensure comfortable conditions in naturally ventilated environments are still developing. Thus, this article aims to analyze the implementation of PCMs as a passive method in a naturally ventilated prefabricated building of social interest, in the summer season, through simulations in three cities in Brazil, namely: Brasília (DF), Palmas (TO) and Santa Maria (RS). In the analyzes carried out, the PCM 22 incorporated in the roof and wall simultaneously was the situation that obtained the best result for the city of Brasília, keeping approximately 100% of the hours in comfort. In Santa Maria, the PCM 25 deployed on the roof and wall together obtained the best result, with only 8% of the hours for the comfort range. In comparison, in Palmas, the same model presented approximately 82% of the hours in comfort. In all cases, the use of PCM was positive, reducing the residence's thermal amplitude and improving its thermal inertia.
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