Smart thermally responsive perovskite materials: Thermo-chromic application and density function theory calculation

Ning, Jing; Chen, Shuming; Wang, Jintao; He, Chenyang; Fang, Kai; Yin, Hanlin; Liu, Yitong; Li, Ye; Yu, Duan

doi:10.1016/j.heliyon.2023.e12845

Cited by 2 publications

(1 citation statement)

References 93 publications

(128 reference statements)

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“…In addition to VO 2 -based TARC materials, several TARC materials have also been proposed in existing studies, including hydrogel-based TARC materials [24,25], perovskitebased TARC materials [26,27], and other solution-based TARC materials [28]. However, most of these studies have focused on the preparation of TARC materials and their ability to change the temperature adaptively, with little attention given to the energy savings potential of these materials for their application in buildings.…”

Section: Introductionmentioning

confidence: 99%

Building Energy Efficiency Enhancement through Thermochromic Powder-Based Temperature-Adaptive Radiative Cooling Roofs

Song,

Zhang,

Xiao

et al. 2024

Buildings

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This paper proposes a temperature-adaptive radiative cooling (TARC) coating with simple preparation, cost effectiveness, and large-scale application based on a thermochromic powder. To determine the energy efficiency of the proposed TARC coating, the heat transfer on the surface of the TARC coating was analyzed. Then, a typical two-story residential building with a roof area of 258.43 m2 was modeled using EnergyPlus. Finally, the energy-saving potential and carbon emission reduction resulting from the application of the proposed TARC roof in buildings under different climates in China were discussed. The results showed that the average solar reflectivity under visible light wavelengths (0.38–0.78 μm) decreases from 0.71 to 0.37 when the TARC coating changes from cooling mode to heating mode. Furthermore, energy consumption can be reduced by approximately 17.8–43.0 MJ/m2 and 2.0–32.6 MJ/m2 for buildings with TARC roofs compared to those with asphalt shingle roofs and passive daytime radiative cooling (PDRC) roofs, respectively. This also leads to reductions in carbon emissions of 9.4–38.0 kgCO2/m2 and 1.0–28.9 kgCO2/m2 for the buildings located in the selected cities. To enhance building energy efficiency, TARC roofs and PDRC roofs are more suitable for use on buildings located in zones with high heating demands and high cooling demands, respectively.

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