生物启发的被动辐射冷却器具有卓越的透明度和耐久性,用于节能建筑
Hanliang Ding1, Bo Li1, Yicong Zhang1
1Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130022, China.
生物启发的被动辐射冷却 (BPRC) 材料为透明表面提供节能冷却. 这种新材料实现了高透射率和紫外线屏蔽,降低了温度并节省了能源.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 可持续能源 可持续能源
背景情况:
- 被动辐射冷却 (PRC) 材料通过红外辐射提供无能冷却,这对于全球变暖和能源解决方案至关重要.
- 现有的中国材料在透明应用中面临限制,原因是其不透明性,粘合性差,以及功能颗粒的传导性降低.
研究的目的:
- 为透明基板开发一个生物灵感的被动辐射冷却器 (BPRC),增强温度调节.
- 在透明的PRC材料中实现波长选择性光学调制和机械稳定性.
主要方法:
- 一个生物灵感设计模仿人类皮肤的层次结构和热管理.
- 波长选择性的光学特性和机械稳定技术的整合.
主要成果:
- BPRC实现了89.5%的可见透射率,相当于裸玻璃,紫外线屏蔽率高出34%.
- 在653.35W/m2辐射下观察到最大温度降低7.4°C,模拟节能高达11.5%.
- 该BPRC表现出强大的粘合力 (0.5MPa的粘合强度) 和出色的机械耐用性.
结论:
- 这种生物灵感的方法为大规模生产高度透明的中国材料提供了可行的策略.
- 开发的BPRC显示了节能建筑和光伏系统的巨大潜力.
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