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Keywords
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Building energy analysis, Cool paints, Energy plus software, NIR reflective pigments, Perylene diimide pigments
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Abstract
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Purpose – The purpose of this study is to investigate the performance of eight perylene diimide pigments as a hypothetical building facades using
EnergyPlus.
Design/methodology/approach – A hypothetical building located in Tehran is modeled using EnergyPlus, and the effectiveness of the pigments
was examined. Furthermore, the performance of the pigments was compared with those of common commercial black (carbon black) and red (iron
oxide) pigments.
Findings – The results show that the studied black pigments reduce the cooling energy demand up to 37 per cent in comparison with carbon black
paint and the red ones, which reduce the value by as much as 32 per cent in comparison to iron oxide.
Originality/value – This study demonstrates that the application of cool paints rather than common paints will significantly reduce the cooling
energy demand and subsequent costs.
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