Recent Advances in Spectrally Selective Daytime Radiative Cooling Materials DOI Creative Commons
An‐Quan Xie,

Hui Qiu,

Wangkai Jiang

и другие.

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Май 20, 2025

Abstract Daytime radiative cooling is an eco-friendly and passive technology that operates without external energy input. Materials designed for this purpose are engineered to possess high reflectivity in the solar spectrum emissivity within atmospheric transmission window. Unlike broadband-emissive daytime materials, spectrally selective (SSDRC) materials exhibit predominant mid-infrared emission This suppresses thermal radiation absorption beyond window range, thereby improving net power of cooling. review elucidates fundamental characteristics SSDRC including their molecular structures, micro- nanostructures, optical properties, thermodynamic principles. It also provides a comprehensive overview design fabrication three typical forms, i.e., fibrous membranes, particle coatings, highlighting respective mechanisms performance. Furthermore, practical applications personal management, outdoor building cooling, harvesting summarized. Finally, challenges prospects discussed guide researchers advancing materials. "Image missing"

Язык: Английский

Enhancing Building Energy Performance and Climate Resilience with Phase Change Materials and Reflective Coatings DOI
Md Jaynul Abden, Zhong Tao, M. A. Alim

и другие.

Опубликована: Янв. 1, 2025

Enhancing energy efficiency in residential buildings is essential for reducing CO2 emissions and meeting the growing demands of global standards. This study investigates impacts retrofitting existing Australian houses with phase change materials (PCMs) reflective coatings on annual savings, star ratings performance during heatwaves. Experimental results demonstrate that applying PCM boards to walls, ceilings or both resulted a maximum reduction peak indoor air temperature by 5.8 °C when surfaces were treated, allowing load shift up 71 minutes into off-peak period. The evaluates retrofitted Sydney, Alice Springs, Darwin. Using experimental data validated EnergyPlus simulations, optimal retrofit configurations achieved savings 31.9 kWh/m2·y 60.6 85.6 Darwin, corresponding improved 7.0, 7.1, 7.6, respectively. During heatwaves, experienced significant reductions thermal discomfort, achieving 100% 86.7% Springs 92.6% Economic analysis revealed payback periods ranging from 5.3 24 years, depending local climate conditions. These findings underscore feasibility effectiveness strategies enhance efficiency, improve comfort achieve Australia's 7-star standard.

Язык: Английский

Процитировано

0
Recent Advances in Spectrally Selective Daytime Radiative Cooling Materials DOI Creative Commons
An‐Quan Xie,

Hui Qiu,

Wangkai Jiang

и другие.

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Май 20, 2025

Abstract Daytime radiative cooling is an eco-friendly and passive technology that operates without external energy input. Materials designed for this purpose are engineered to possess high reflectivity in the solar spectrum emissivity within atmospheric transmission window. Unlike broadband-emissive daytime materials, spectrally selective (SSDRC) materials exhibit predominant mid-infrared emission This suppresses thermal radiation absorption beyond window range, thereby improving net power of cooling. review elucidates fundamental characteristics SSDRC including their molecular structures, micro- nanostructures, optical properties, thermodynamic principles. It also provides a comprehensive overview design fabrication three typical forms, i.e., fibrous membranes, particle coatings, highlighting respective mechanisms performance. Furthermore, practical applications personal management, outdoor building cooling, harvesting summarized. Finally, challenges prospects discussed guide researchers advancing materials. "Image missing"

Язык: Английский

Процитировано

0