Thermal-Responsive Smart Windows with Passive Dimming and Thermal Energy Storage

Zhang, Haiquan; Wang, Ling; Wang, Fuge; Fang, Qiaoming; Chen, Songjiao; He, Wei; Wang, Ning

doi:10.1021/acsomega.4c01570

ACS Omega

2024

DOI: 10.1021/acsomega.4c01570

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Thermal-Responsive Smart Windows with Passive Dimming and Thermal Energy Storage

Haiquan Zhang,

Ling Wang,

Fuge Wang

et al.

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2024

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Cited by 2 publications

References 45 publications

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Preparation strategy of photo-thermal composite phase change materials: A review

Bian,

Liao,

2024

Journal of Energy Storage

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Preparation strategy of photo-thermal composite phase change materials: A review

Bian,

Liao,

2024

Journal of Energy Storage

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Scalable Fabrication of Thermochromic Smart Windows for Broadening Temperature Ranges and Their Coupled Thermoelectric Power Generation

Xie,

Li,

Luo

et al. 2024

ACS Sustainable Chem. Eng.

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Thermochromic materials exhibit variable optical properties in response to ambient temperature changes and are promising for the development of smart windows aimed at reducing energy consumption in buildings. However, scaling up the thermochromic materials-based smart window with a broad colorchanging range remains a significant challenge for practical engineering applications. In this study, we present a series of PNIPAm-based thermochromic hydrogels with controllable discoloration temperatures ranging from 24 to 43 °C, achieved by regulating the swelling−dissolution transition. These materials demonstrate a high solar modulation capacity (>81%), excellent transmittance (>83%), and low haze value (<9.87%). Two strategies for the integration of smart windows are provided, and their effectiveness in reducing energy consumption is verified. Practical application tests conducted in Shanghai during the summer show that using smart windows can reduce indoor temperatures by up to 13 °C. Simulation results further indicate that these smart windows offer significant energy-saving benefits in various cities, particularly those with high daily energy consumption and poor thermal insulation. Additionally, the thermochromic hydrogel is coupled with a thermoelectric hydrogel, utilizing the residual heat from the glass surface to generate electricity, thus powering small electrical appliances.

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Thermal-Responsive Smart Windows with Passive Dimming and Thermal Energy Storage

Cited by 2 publications

References 45 publications

Preparation strategy of photo-thermal composite phase change materials: A review

Preparation strategy of photo-thermal composite phase change materials: A review

Scalable Fabrication of Thermochromic Smart Windows for Broadening Temperature Ranges and Their Coupled Thermoelectric Power Generation

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