在热带条件下基于TiO2的辐射冷却涂层的冷却性能
Bhrigu Rishi Mishra1, Sreerag Sundaram1, Karthik Sasihithlu1
1Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India.
ACS omega
|December 23, 2024
概括
辐射冷却 (RC) 涂料可以降低温度,但不能在潮湿的热带环境中实现环境下冷却. 需要进一步分析以了解高湿度和太阳辐射中的性能限制.
科学领域:
- 材料科学 材料科学 材料科学
- 热力学是一种热力学.
- 环境科学 环境科学
背景情况:
- 辐射冷却 (RC) 涂层提供被动冷却,但由于高湿度和太阳辐射,它们的性能在热带气候下降.
- 现有的高性能RC涂层通常是昂贵的,并且缺乏适用于大规模部署的耐用性.
- 热带地区的环境下冷却仍然是当前RC技术面临的挑战.
研究的目的:
- 为了评估基于TiO2和聚二甲基 (PDMS) 的RC油漆涂层在不同湿度水平下的性能.
- 调查RC涂层在热带环境中限制环境下冷却性能的因素.
- 为开发更有效的湿气气候RC解决方案提供见解.
主要方法:
- 在三个城市的不同湿度水平的 (Al) 箱子上测试RC漆涂层.
- 将涂层盒子的内部温度与未涂层的对照进行比较.
- 进行全面分析以确定性能限制的原因.
主要成果:
- 在高湿度和中等湿度条件下,RC涂料涂层显著降低了Al盒的内部温度.
- 通过测试的RC涂料,无法实现环境下冷却 (低于环境温度的冷却).
- 性能受到环境变量的影响,特别是湿度和太阳辐射.
结论:
- 经过测试的RC油漆涂层显示了降温的潜力,但未能在潮湿的环境中实现环境下冷却.
- 环境因素,特别是高湿度,显著阻碍了RC涂料的有效性.
- 需要进一步的研究来克服RC涂料在热带和潮湿气候中的局限性.
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