Postdoctoral Research Fellow at Interdisciplinary Research Center for Construction and Building Materials King Fahd University of Petroleum and Minerals
Characterization and energy performance of flexible photochromic window films Khaled Khaled, Umberto Berardi E3s Web of Conferences, 2023 Windows are considered the weakest components in the building envelope, driven by their low thermal resistance and static transmittance to solar gains. Consequently, innovative coatings are often proposed to promote energy saving performance of windows. This article investigates several flexible photochromic window films capable of reversibly modulating solar gains based on the abundance of ultraviolet radiation. The peel-and-stick films are applied to the internal glazing surface, making them suitable for window retrofits without interrupting building occupancy. The optical properties of the photochromic films are experimentally characterized at various solar radiation intensities. The results are then used to numerically evaluate the energy-saving potential of the different films for a representative room in a high-rise office building located in Tokyo’s warm climate. The results of the experimental and numerical investigations are discussed to show the potential of photochromic films for window-retrofit applications.
Hydrothermal synthesis and energy saving potential of thermochromic VO2 nanocomposite window coatings in temperate North American climates K Khaled, U Berardi, M Schlaf, DV Soldatov Solar Energy 291, 113411 , 2025 2025 Citations: 8
Full-scale assessment of a liquid CsWO3-SnO2 near-infrared shielding coating and a nanoceramic WO3 photochromic window film for in-situ window retrofits K Khaled, U Berardi Building and Environment 269, 112447 , 2025 2025 Citations: 10
One-Step Hydrothermal Synthesis of Vanadium Dioxide Structures for Thermochromic Glass Applications K Khaled, U Berardi, M Schlaf, D Soldatov International Association of Building Physics, 355-362 , 2024 2024 Citations: 2
Heating Performance of Photochromic and NIR-Shielding Window Retrofits: An Experimental Evaluation in a Continental Climate K Khaled, U Berardi International Association of Building Physics, 219-225 , 2024 2024 Citations: 1
Architectural glass solar and thermal control coating technologies U Berardi, K Khaled Encyclopedia of Sustainable Technologies, 2nd ed.; Abraham, MA, Ed, 361-386 , 2024 2024 Citations: 7
A cross-climate assessment of the visual and energy performance of flexible photochromic films for in-situ window retrofits K Khaled, U Berardi Energy and Buildings 300, 113664 , 2023 2023 Citations: 36
Characterization and energy performance of flexible photochromic window films K Khaled, U Berardi E3S Web of Conferences 396, 04019 , 2023 2023 Citations: 3
Energy modelling and saving potential of polymeric solar-responsive thermochromic window films K Khaled, U Berardi, Z Liao Solar Energy 244, 84-103 , 2022 2022 Citations: 42
Energy-saving potential of thermochromic glazing in a cold climate K Khaled, U Berardi, Z Liao 5th International Conference on Building Energy and Environment (COBEE 2022) , 2022 2022 Citations: 2
Current and future coating technologies for architectural glazing applications K Khaled, U Berardi Energy and Buildings 244, 111022 , 2021 2021 Citations: 155
Thermal performance impacts of vented EIFS assemblies in the cold climate of Southern Ontario K Khaled, R Richman Journal of Building Engineering 31, 101446 , 2020 2020 Citations: 4
A Smart Hybrid Energy System Grid for Energy Efficiency in Remote Areas for the Army U Berardi, E Tomassoni, K Khaled Energies, 1-22 , 2020 2020 Citations: 41
MOST CITED SCHOLAR PUBLICATIONS
Current and future coating technologies for architectural glazing applications K Khaled, U Berardi Energy and Buildings 244, 111022 , 2021 2021 Citations: 155
Energy modelling and saving potential of polymeric solar-responsive thermochromic window films K Khaled, U Berardi, Z Liao Solar Energy 244, 84-103 , 2022 2022 Citations: 42
A Smart Hybrid Energy System Grid for Energy Efficiency in Remote Areas for the Army U Berardi, E Tomassoni, K Khaled Energies, 1-22 , 2020 2020 Citations: 41
A cross-climate assessment of the visual and energy performance of flexible photochromic films for in-situ window retrofits K Khaled, U Berardi Energy and Buildings 300, 113664 , 2023 2023 Citations: 36
Full-scale assessment of a liquid CsWO3-SnO2 near-infrared shielding coating and a nanoceramic WO3 photochromic window film for in-situ window retrofits K Khaled, U Berardi Building and Environment 269, 112447 , 2025 2025 Citations: 10
Hydrothermal synthesis and energy saving potential of thermochromic VO2 nanocomposite window coatings in temperate North American climates K Khaled, U Berardi, M Schlaf, DV Soldatov Solar Energy 291, 113411 , 2025 2025 Citations: 8
Architectural glass solar and thermal control coating technologies U Berardi, K Khaled Encyclopedia of Sustainable Technologies, 2nd ed.; Abraham, MA, Ed, 361-386 , 2024 2024 Citations: 7
Thermal performance impacts of vented EIFS assemblies in the cold climate of Southern Ontario K Khaled, R Richman Journal of Building Engineering 31, 101446 , 2020 2020 Citations: 4
Characterization and energy performance of flexible photochromic window films K Khaled, U Berardi E3S Web of Conferences 396, 04019 , 2023 2023 Citations: 3
One-Step Hydrothermal Synthesis of Vanadium Dioxide Structures for Thermochromic Glass Applications K Khaled, U Berardi, M Schlaf, D Soldatov International Association of Building Physics, 355-362 , 2024 2024 Citations: 2
Energy-saving potential of thermochromic glazing in a cold climate K Khaled, U Berardi, Z Liao 5th International Conference on Building Energy and Environment (COBEE 2022) , 2022 2022 Citations: 2
Heating Performance of Photochromic and NIR-Shielding Window Retrofits: An Experimental Evaluation in a Continental Climate K Khaled, U Berardi International Association of Building Physics, 219-225 , 2024 2024 Citations: 1