Radiative cooling: structure design and application

Wang, Yi; Ji, Haining; Liu, Bin; Tang, Pinghua; Chen, Yongxing; Huang, Jiamei; Ou, Yangyong; Tao, Jundong

doi:10.1039/d4ta01158a

Cited by 9 publications

(1 citation statement)

References 124 publications

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“…At present, building energy consumption accounts for 40% of total energy consumption and is showing an increasing trend year by year [ 1 , 2 ]. Therefore, promoting building energy conservation and energy-saving renovation of existing buildings has become a key focus for energy conservation, emission reduction, and sustainable development [ 3 , 4 , 5 , 6 ]. In addition, windows are the main channel for heat exchange between buildings and the outside world, so it is important to regulate solar radiation through windows to reduce the energy consumption of buildings [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Electrochromic Smart Windows with Self-Driven Thermoelectric Power Generation

Xie,

Ji,

Wang

et al. 2024

Nanomaterials

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Electrochromic smart windows can achieve controllable modulation of color and transmittance under an external electric field with active light and thermal control capabilities, which helps reduce energy consumption caused by building cooling and heating. However, electrochromic smart windows often rely on external power circuits, which greatly affects the independence and portability of smart windows. Based on this, an electrochromic smart window driven by temperature-difference power generation was designed and implemented. This smart window provides automatic and manual control of the reversible cycle of electrochromic glass from light blue to dark blue according to user requirements and changes in the surrounding environment, achieving adaptive adjustment of visual comfort and reducing energy consumption. The infrared radiation rejection (from 780 to 2500 nm) of the electrochromic smart window is as high as 77.3%, and its transmittance (from 380 to 780 nm) fluctuates between 39.2% and 56.4% with changes in working state. Furthermore, the temperature in the indoor simulation device with electrochromic glass as the window was 15 °C lower than that with ordinary glass as the window after heating with a 250 W Philips infrared lamp for ten minutes. After 2000 cycles of testing, the performance of the smart window was basically maintained at its initial values, and it has broad application prospects in buildings, vehicles, and high-speed rail systems.

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Section: Introductionmentioning

confidence: 99%

Design and Implementation of Electrochromic Smart Windows with Self-Driven Thermoelectric Power Generation

Xie,

Ji,

Wang

et al. 2024

Nanomaterials

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Self‐Cleaning and Anticorrosive Silica Microsphere@Boron Nitride Nanosheets Core–Shell Hierarchical Structure for Highly Efficient Passive Radiative Cooling

Zhang,

Bao,

Lin

et al. 2024

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Passive radiative cooling is a promising technology that can achieve high‐efficient cooling by reflecting solar radiation while simultaneously emitting heat without consuming energy. However, to precisely construct the microstructure of the materials is crucial to maximize their performance. Herein, a self‐cleaning and anticorrosive 3D silica microsphere@boron nitride nanosheets core–shell hierarchical structure (SiO2@BNNSs) stacked coating is fabricated on the surface of aluminum oxide substrate. The cooperative integration of prominently sunlight reflective BNNSs and highly selective infrared emissive SiO2 microspheres, combined with sunlight scattering brought by the 3D interconnecting configuration, results in an outstanding solar radiation reflectance of 0.84 and a mid‐infrared emittance of 0.82 for the SiO2@BNNS coating. These features enable the SiO2@BNNS coating to exhibit excellent passive radiative cooling performances with high temperature drop of ≈17.5 °C on sunny day and ≈8.1 °C on overcast day, respectively. More importantly, the SiO2@BNNS coating also exhibits self‐cleaning performance and corrosion resistance in both acidic and alkaline conditions, ensuring the preeminent stability over a long time for various practical applications. This work demonstrates that the hybridization of the high reflection, scattering, and emittance of different materials through reasonable structure design can achieve high‐efficient passive radiative cooling, offering promising prospect for energy‐saving cooling technology.

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Superhydrophobic thermoplastic polyurethane/SiO2 sponge with dual-layer porous structure for summer radiative cooling and winter thermal insulation

Qu,

Xue,

Liu

et al. 2024

J Mater Sci

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Radiative cooling: structure design and application

Abstract: This paper provides a comprehensive overview of radiative cooling technology, covering its basic principles, various design structures, and potential applications.

Cited by 9 publications

References 124 publications

Design and Implementation of Electrochromic Smart Windows with Self-Driven Thermoelectric Power Generation

Design and Implementation of Electrochromic Smart Windows with Self-Driven Thermoelectric Power Generation

Self‐Cleaning and Anticorrosive Silica Microsphere@Boron Nitride Nanosheets Core–Shell Hierarchical Structure for Highly Efficient Passive Radiative Cooling

Superhydrophobic thermoplastic polyurethane/SiO2 sponge with dual-layer porous structure for summer radiative cooling and winter thermal insulation

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