Ryu Dong Gyun, Kim June Tae, Kim Min Seong, Kim Jeong Jin, Nam Hee Jun, Jeong Ik Hoon, Kim Yeong Jae, Lee Gil Ju
Opt Express. 2024 Sep 9;32(19):33016-33028. doi: 10.1364/OE.533116.
Conventional radiative coolers (RCs) exhibit excellent cooling performance in horizontally-installed scenarios but are mainly limited to roofing materials due to their emitting direction. To increase the availability of RC application on the area of a building facade, this article proposes an oblique radiation-angled photonic structure (ORAPS). ORAPS can facilitate thermal emission toward the outer space, evade the adjacent building, and reflect incoming radiative heat in a direction perpendicular to the panel. Along with the theoretical basis of designing the structure, we present simulation-based cooling performance analyses for diverse environmental parameters. This demonstrates that an ORAPS is useful not only for densely packed megacities but also for thermoregulation during the winter season.
传统辐射冷却器（RCs）在水平安装场景中表现出优异的冷却性能，但由于其发射方向，主要限于屋面材料。为了提高RC在建筑立面上的应用可用性，本文提出了一种倾斜辐射角光子结构（ORAPS）。ORAPS可以促进向太空的热发射，避开相邻建筑物，并将入射辐射热反射到与面板垂直的方向。除了设计该结构的理论基础外，我们还针对不同环境参数进行了基于模拟的冷却性能分析。这表明ORAPS不仅对人口密集的大城市有用，而且在冬季也有助于温度调节。
