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Exploring the potential of phosphorescence for mitigating urban overheating: First time representation in an Urban Canopy Model

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  • Chiatti, Chiara
  • Fabiani, Claudia
  • Huang, Xinjie
  • Bou-Zeid, Elie
  • Pisello, Anna Laura

Abstract

Phosphorescence (PP) has emerged as a promising passive cooling solution for the built environment, characterized by its ability to emit radiation persistently after photon absorption, thereby enhancing the solar radiation rejection capability and effective albedo of the surface. While various compounds have shown excellent properties for energy-saving purposes, assessing their benefits for the built environment towards their actual implementation still remains a challenge. To bridge the gap between laboratory-scale characterizations and real-world applications, this study employs the Princeton Urban Canopy Model (PUCM) to assess the surface cooling potential of PP coatings. This research represents the first numerical modeling of phosphorescence, extrapolating findings from experimentally validated parameters to conditions and scale of real cities. Results demonstrate the substantial capacity of PP to ameliorate surface overheating in urban areas, potentially reducing surface temperatures by up to −2.6 °C when optimized. Additionally, material optimization emerges as a crucial factor for exploiting the potential of phosphorescence in mitigating urban overheating, highlighting its strategic relevance for the urban canopy environment.

Suggested Citation

  • Chiatti, Chiara & Fabiani, Claudia & Huang, Xinjie & Bou-Zeid, Elie & Pisello, Anna Laura, 2024. "Exploring the potential of phosphorescence for mitigating urban overheating: First time representation in an Urban Canopy Model," Applied Energy, Elsevier, vol. 362(C).
    • Handle: RePEc:eee:appene:v:362:y:2024:i:c:s0306261924003672
    DOI: 10.1016/j.apenergy.2024.122984
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    References listed on IDEAS

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    1. Chiatti, Chiara & Fabiani, Claudia & Pisello, Anna Laura, 2023. "Toward the energy optimization of smart lighting systems through the luminous potential of photoluminescence," Energy, Elsevier, vol. 266(C).
    2. Oleksandra Khalaim & Olena Zabarna & Taras Kazantsev & Ihor Panas & Oleksandr Polishchuk, 2021. "Urban Green Infrastructure Inventory as a Key Prerequisite to Sustainable Cities in Ukraine under Extreme Heat Events," Sustainability, MDPI, vol. 13(5), pages 1-23, February.
    3. Marchini, F. & Chiatti, C. & Fabiani, C. & Pisello, A.L., 2023. "Development of an innovative translucent–photoluminescent coating for smart windows applications: An experimental and numerical investigation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 184(C).
    4. Chiatti, Chiara & Fabiani, Claudia & Bondi, Roberto & Zampini, Giulia & Latterini, Loredana & Pisello, Anna Laura, 2023. "Controlled combination of phosphorescent and fluorescent materials to exploit energy-saving potential in the built environment," Energy, Elsevier, vol. 275(C).
    5. Ulpiani, Giulia, 2019. "Water mist spray for outdoor cooling: A systematic review of technologies, methods and impacts," Applied Energy, Elsevier, vol. 254(C).
    6. Fabiani, Claudia & Gambucci, Marta & Chiatti, Chiara & Zampini, Giulia & Latterini, Loredana & Pisello, Anna Laura, 2022. "Towards field implementation of photoluminescence in the built environment for passive cooling and lighting energy efficiency," Applied Energy, Elsevier, vol. 324(C).
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