Applications of thermochromic material in opaque building envelopes: A comprehensive review

IF 7.1 3区材料科学 Q1 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY

Materials Today Sustainability Pub Date : 2024-10-16 DOI:10.1016/j.mtsust.2024.101009

Chenxi Hu , Liming Ge , Xi Meng

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引用次数: 0

Abstract

Solar radiation heat gain can lower the air-conditioning energy consumption and improve the thermal environment in winter while it is in summer. However, the traditional building skin material does not address the difference in thermal demand between winter and summer due to the constant solar reflectance. An innovative solution to this issue is the use of thermochromic materials (TCMs), which are capable of altering their colour and solar reflectance in response to temperature changes, thus aligning with the seasonal thermal requirements. Despite the potential of TCMs, a thorough analysis of their advantages and drawbacks to inform their practical application has been lacking in the literature. This review provides an overview of the classification and discolouration mechanism of TCM, performance measurement indicators and evaluation methods, and the main factors affecting the application efficiency of TCM. It provides a comprehensive account of the application efficiency of TCM in the thermal environment of urban buildings and building energy consumption. Finally, the review concludes with suggestions for future research avenues and potential applications, taking into account the limitations currently impeding the full realization of TCMs' efficiency.

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热致变色材料在不透明建筑围护结构中的应用：全面回顾

太阳辐射得热可以降低空调能耗，改善冬季与夏季的热环境。然而，由于太阳反射率的恒定性，传统的建筑表皮材料无法解决冬夏两季的热需求差异。解决这一问题的创新方法是使用热致变色材料（TCM），这种材料能够根据温度变化改变颜色和太阳反射率，从而与季节性热需求保持一致。尽管热致变色材料潜力巨大，但文献中一直缺乏对其优缺点的全面分析，从而为其实际应用提供依据。本综述概述了中药的分类和变色机理、性能测量指标和评估方法，以及影响中药应用效率的主要因素。综述全面阐述了中药在城市建筑热环境中的应用效率和建筑能耗。最后，考虑到目前阻碍中药充分发挥效能的限制因素，综述对未来的研究途径和潜在应用提出了建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Today Sustainability Multiple-

CiteScore

5.80

自引率

6.40%

发文量

174

审稿时长

32 days

期刊介绍： Materials Today Sustainability is a multi-disciplinary journal covering all aspects of sustainability through materials science. With a rapidly increasing population with growing demands, materials science has emerged as a critical discipline toward protecting of the environment and ensuring the long term survival of future generations.