双带电色智能窗口用于辐射冷却和太阳能加热之间的动态切换
Xinyu Zhao1, Qixiang Chen1, Fan Fan1
1School of Energy and Environment, Southeast University, Nanjing, Jiangsu, 210096, China.
概括
本研究介绍了智能窗户的动态电色 (EC) 玻璃,将能源效率扩展到太阳光谱之外. 这种新的设计为可持续的建筑物实现了显著的供暖,通风和空调 (HVAC) 节能.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续能源 可持续能源
- 建筑技术 建筑技术 建筑技术
背景情况:
- 电色 (EC) 智能窗户通过调节透明度来提供能源效率.
- 目前的EC窗户仅限于太阳光谱,限制了它们的节能潜力.
- 将EC功能扩展到中红外光谱可以增强热管理.
研究的目的:
- 设计一个动态的电色玻璃,在太阳光和中红外光谱中进行双向调制.
- 为了使智能窗户能够在辐射冷却和太阳能加热模式之间切换.
- 评估建筑应用中显著节能的潜力.
主要方法:
- 整合银电解放/溶解与机械玻璃面板翻转.
- 动态调制太阳光谱 (0.3-2.5微米) 和中红外光谱 (2.5-20微米).
- 用特定气候的操作模式模拟建筑应用程序.
主要成果:
- 实现了从87.9%到19.9%的太阳反射变化.
- 从90.6%到10.8%实现了中红外辐射率的变化.
- 已证明每年节省50%以上的HVAC能源的潜力.
结论:
- 开发的EC玻璃提供了对太阳能增益和热排放的动态控制.
- 这项技术显著提高了建筑物的能源效率,支持碳中和.
- 双频谱调制能力代表了可持续建筑设计的突破.
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