Quantifying the cooling effect of cool materials on building surfaces and indoor temperature at the neighborhood scale

Fusuo Xu, Zhi Gao, Jianshun Jensen Zhang

Research output: Chapter in Book/Entry/PoemConference contribution

Abstract

Cool materials hold significant importance for building energy conservation, as their high reflectivity and emissivity characteristics can notably reduce summer energy consumption. This study conducted a scaled outdoor experiment to investigate the impact of using cool materials on the roof and building façades of different floors on the building surface and indoor temperature. The results indicate that, due to the shading effect between buildings, higher floors show better energy-saving performance when using cool materials on building façades. Specifically, using cool materials on the top floor resulted in an average reduction of 3.4 °C in the daytime for the south façade. For indoor temperature, the building façades of the top floor using cool materials showed an average reduction of 1.9 °C, while the building façades of the first floor only decreased indoor temperature by 0.5 °C. In general, the effectiveness of cool materials is better for the building surface receives more solar radiation.

Original languageEnglish (US)
Title of host publication18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings
PublisherInternational Society of Indoor Air Quality and Climate
ISBN (Electronic)9798331306816
StatePublished - 2024
Event18th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2024 - Honolulu, United States
Duration: Jul 7 2024Jul 11 2024

Publication series

Name18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings

Conference

Conference18th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2024
Country/TerritoryUnited States
CityHonolulu
Period7/7/247/11/24

Keywords

  • Building energy efficiency
  • Cool material
  • Indoor temperature
  • Scaled outdoor experiment
  • Wall temperature

ASJC Scopus subject areas

  • Pollution

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